This work procedure enumerates the scope of Plumbing work to be executed in Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per procedure.
Safety & protection:
PPEs like safety belts at height, helmets, safety goggles, ear plugs and hand gloves etc. should be used properly.
Ensure the working area is kept clean for easy access.
Proper illumination to be provided during the work, if required.
Educate the workmen through pep-talk meeting.
Internal CPVC concealed plumbing:
Preparatory Works:
Ensure the plumbing materials received are as per the approved drawing and specification.
Check the tile layout marking on walls and level pads showing the finish wall face after tiling.
Do mark the reference level on wall at 600mm above FFL.
With the help of tile layout and plumbing drawing mark the points and plumbing lines on wall.
Check the layout and do adjustment to bring points at correct location as per tile layout, required if any.
Chase the marked wall portion first with cutting machine by making small slices on wall and then remove it with chisel and hammer.
Mark the plumbing point on wall again in order to measure the length of pipe required to be cut.
On ground assemble the skeleton of pipes and fittings (Elbow, T, brass elbow, socket etc.). Use CPVC adhesive supplied by manufacturer for jointing.
Check the alignments of elbow fitted on pipe for their alignment, if elbows are fitted incorrectly then same should be removed by cutting pipe and new fittings should be made (Record the wasted material due to poor workmanship).
Work Method:
Fix the assembled skeleton on wall with plumbing nails and binding wire as per layout.
Do pressure testing of installed line as follows;
For pressure testing ensure hydraulic pressure testing machine of capacity 20kg/cm2 is available.
Fix the connector pipe to machine and on the end point on wall or on point which is most feasible for doing testing.
Fix a ball valve at another end point to release the entrapped air in pipe to avoid false result during testing.
Fix plugs on all other points.
Apply the pressure at 10kg/cm2 and keep it for 45 minutes.
Do check for any visible leakages at joints and at plugs.
If pressure drop observed or any leakage is observed rectify the same and do pressure testing again.
After successful testing, record the result. Fix all elbow points in position with the help of cement paste.
Check all points for its correct alignment. All elbow points should be fix 10mm in from finished tile face to ensure proper grouting and sealing of joint at later stage of work. Flush wall should be fixed in position as per the specification of manufacturer.
Do fill the chased portion with cement mortar of 1:4 and cure it for minimum 4 days.
Internal PVC Concealed Plumbing:
Preparatory Works:
Ensure the material received is as per approved plumbing drawing and specifications.
Do check leakage testing of waterproofing base coat is completed.
Do check all cutouts on wall for drainage are in plumb to ease the external plumbing work.
As per the tile layout and approved plumbing drawing do dry laying of points and measure the length of pipe required.
Fitting are push type (Ring fitting) which have rubber ring in fitting. File the cut pipe portion to avoid damages to rubber after fitting.
Apply lubricant supplied by manufacture on inner face of fitting and then insert filed edge of pipe inside it.
For Multi floor trap (MFT) when there are two MFT or need to fit the WHB or any other pipe. Reducer of 50 x 40 should be used at MFT and it should be fixed to it, by using PVC solvent specified by manufacturer.
MFT should be fixed as close as to wall or max at 150mm from wall finish face.
Lay the assembled skeleton to its final location and fix in slop as specified with the help of cement mortar of 1:4.
Do check the all points and slop is as per approved tile layout and plumbing drawing.
At points where pipe crosses the wall, portion of pipe which goes into wall area should be made rough by applying PVC solvent and sprinkling sand on it to ensure bonding.
This standard operating procedure enumerates the scope of Gypsum Plaster work to be executed in Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per procedure.
Safety & protection:
Working space to be clear of debris so that easy access is ensured
Scaffolding to be checked for the load carrying capacity and ensure no overloading.
Lifting, manual transporting of materials have to be carried out by workers who are properly trained. Otherwise this may cause serious injuries to workers.
Throwing of debris from height strictly prohibited.
PPEs should be used properly.
Preparatory Works:
All the nails, binding wire, masking tapes and wooden piece shall be removed from concrete surface.
All the dust, oil spots, and green algae, if any shall be cleaned from concrete and Blockwork surface with the help of wire brush.
Proper scaffolding shall be provided to allow easy approach to every part of the work.
In no case, holes in Blockwork should be done for supporting scaffolding.
At place of work where sufficient natural daylight is not available, artificial light shall be made available.
Level pads of size 1 x 1 shall be made on the walls.
Level pads shall also be checked for vertical alignment with the help of plumb bob, for right angle with the help of try square and for diagonal dimension of room with the help of tape.
Fiber mesh should be fixed on all concrete and blockwork joints (except base course joint).
In case of level differences in adjoining surfaces, the same shall be made up before fixing of chicken mesh.
Ensure Concrete surface roughened for proper bonding.
All electrical chases shall be filled with cement mortar and properly rendered with non-shrink grout and application of fiber mesh over it.
Curing should be done for 7 days before starting any type of plaster.
All the conduit drops shall be checked and concealed with plaster, if any visible in opening area.
All the ceiling points and wall points shall be checked for level and dimensions as per drawing or as per clients requirement if any.
Ensure electrical boxes and light point boxes are in line with finish face of plaster.
Gypsum plaster thickness shall be restricted to 10 - 15 mm for walls and 6 to 8 mm for ceiling.
If because of undulations the final thickness is expected to be more than 15 mm, back coat is recommended before applying Gypsum Plaster.
Back coat of 6 to 10 mm thick (cement sand mortar) shall be applied on Blockwork.
Curing of Back coat shall be done for 7 days before starting gypsum work.
Back coat shall be in rich 1:4 cement mortar.
After applying Back coat (wherever required if any) or after checking the thickness of gypsum plaster, Level strips of Gypsum shall be made through full height of wall and shall be checked for vertical alignment with the help of plumb bob, for right angle with the help of right angle and for diagonal dimension of room with the help of tape.
Level strips of Gypsum 6 wide shall be made on ceiling at wall ceiling Junction and it should be checked for right angle.
Work Method:
Gypsum plaster shall be applied only after back coat dries off completely.
Mixing of gypsum should be done in clean buckets/ trays as per proportions specified by manufacturer.
Old left out mix should not be used with new mix at any time.
The Gypsum shall be dashed against the prepared surface.
The dashing of the coat shall be done using a strong whipping motion at right angles to the face of the wall.
The coat shall be led hard and tight forcing it to surface depressions to obtain a permanent bond and finished to smooth surface.
The finishing is made with the help of trowel and Metal straight edge.
Surface should be smooth after application and should be check for plumbs, right angles.
No chasing shall be done after application of final coat on walls /ceilings.
Electric switch boxes, fan boxes etc. shall be cleaned immediately after completion of plaster.
Floor should be cleaned on completion of days work.
This standard operating procedure enumerates the scope of Electrical work to be executed in the Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per the procedure.
Safety & protection:
PPEs like safety belts at height, helmets, safety goggles, earplugs, and hand gloves, etc. should be used properly.
Ensure the working area is kept clean for easy access.
Proper illumination is to be provided during the work if required.
Educate the workmen through the pep-talk meetings.
Work Method:
Slab Conducting:
Customer changes shall be reviewed at the time of slab conducting work and changes should be incorporated.
Conduits for electrical work shall be fixed as per drawing and only after completion of reinforcement work completely.
A minimum 1-inch gap shall be kept between two conduits to ensure uniform concreting.
In lobby areas keep the gap by bunching two conduits.
Ensure drops of beam light points and wall light points are not placed in the opening area.
For wall conduit points, ensure drop goes in the wall area by checking wall alignment in drawing (This will ensure no conduit projecting out from beam bottom on wall face after doing wall conducting).
Conduits should be fixed firmly by tying with reinforcement at the approx 1-meter intervals.
Check for uniform application of cement solvent at pipe joints and at bends.
Electrical and telephone conduit should have, a minimum distance of 150 mm between them.
Conduit shall be fixed with a minimum cover of 5mm.
Protection of ends of conduit, lightbox, and fan box shall be done to ensure no choke after concrete.
Wall Activity:
After De-shuttering, all electrical points should be opened and wire passing should be done. The wire should of GI 18 SWG.
Record the points which are choked and can't be rectified. Make a correction plan for the same.
After Completion of Blockwork and level pads for internal plaster, mark reference floor level on walls at 600mm from FFL.
Chase wall portion for fixing switch boxes by using a cutter, chisel, and hammer.
The switch box shall be fixed as per drawing, in line with internal plaster level pads on the wall and with the help of reference level.
Chasing for conduits on walls shall be done with the chasing machine only.
In case points are choked and are taken through the floor, the saddle clamp should be fixed at the wall and floor corner on both sides.
Filling of conduit chase shall be done by Blockwork contractor with cement mortar of 1:4 and it should be cured for minimum of 7 days.
Wiring and Fittings:
After Approval from Tower-in-charge, wiring activity should be started and done as per color coding shown on the drawing.
At the time of wiring, if any wall finish gets damaged, it should be shown to Tower-in-charge to ensure repairs.
Once the 2nd coat of putty is completed in the flat area or as per instruction from Tower-in-charge light fitting fixing should be started.
If the embedded box is damaged or the edge finishing around it is incorrect or the wall finish around the board is not in line then the switch plates or cover plates should not be fixed in position without rectifying the defect.
To connect wires on the switch as per color coding and as shown in the drawing.
Fix switch plates in position and check for their level and alignment.
Do fix cover plate on top of switch plates and check for its alignment and fitting.
In case a wall point is made on the wall by doing the local adjustment, check its feasibility by overlooking other finishes.
Void should not be seen around the cover plates, in case there is void it should be rectified by removing the switch plate. Do not allow local repair touch without removing it.
Do check operation of all switches and light point for their correctness, its responsibility of Electrical engineer to ensure wiring done correctly and all switches and light points are working correctly.
This standard operating procedure enumerates the scope of Internal Plasterwork to be executed in the Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per the procedure.
Safety & protection:
Working space to be clear of debris so that easy access is ensured.
Scaffolding to be checked for the load carrying capacity and ensure no overloading.
Lifting, manual transporting of materials have to be carried out by workers who are properly trained. Otherwise this may cause serious injuries to workers.
Throwing of debris from height strictly prohibited.
PPEs should be used properly.
Preparatory Works:
All the nails, binding wire, masking tapes and wooden piece shall be removed from concrete surface.
All the dust, oil spots, and green algae, if any shall be cleaned from concrete and Blockwork surface with the help of wire brush.
Proper scaffolding shall be provided to allow easy approach to every part of the work.
In no case, holes in Blockwork should be done for supporting scaffolding.
At place of work where sufficient natural daylight is not available, artificial light shall be made available.
Level pads of size not less than 2 x 2 shall be made on the walls and if required on ceiling also to serve as finished reference level surface.
The distance between level pads shall not exceed 6 in any direction so that their surface alignment can be checked with the help of aluminum straight edge.
Level pads shall also be checked for vertical alignment with the help of plumb bob, for right angle with the help of right angle and for diagonal dimension of room with the help of tape.
Fiber mesh should be fixed on all concrete and blockwork joints (except base course joint).
In case of level differences in adjoining surfaces, the same shall be made up before fixing of chicken mesh.
Ensure Concrete surface roughened for proper bonding.
All electrical chases shall be filled with cement mortar and properly rendered with non-shrink grout and application of fiber mesh over it. Curing should be done for 7 days before starting any type of plaster.
All the conduit drops shall be checked and concealed with plaster. If any visible in opening area.
All the ceiling points and wall points shall be checked for level and dimensions as per drawing or as per clients requirement if any. All electrical boxes and light points should be in line with finish face of plaster.
Ensure all electrical boxes are protected with plastic sheet packing before plaster.
Do wet the surface to receive plaster one hour before, so that while starting plastering, the surface is skin dry.
Work method for plastering:
The mortar for plastering has to be prepared in Tray or on a firm or on metal sheets only.
Do prepare the mortar in clear area in proportion as follows;
Bond Coat / Key Coat 1:4 with 6mm fibers @ 100 grams per bag of cement (Strongplast)
Finish Coat 1:5 with 6mm fibers @ 100 grams per bag of cement (Strongplast).
Do mix mortar which can be consumed with in next 2 hours.
For kitchen and ducts plaster 100% Crush Sand should be use.
For toilets plaster Crush sand and river sand in 50:50 % proportions should be use.
Do add water to the dry mixed sand and binder (not otherwise).
While applying plaster on walls, empty cement bags shall be placed on floor near walls and rebounded mortar fallen on bags shall be put back into mixed mortar before it sets and 10% additional cement should be added in that mix and remixing should be done before its use.
Proper checking and supervision for plumb, line, right angle, measurement of openings after application of plaster should be done by site supervisor / engineer.
Electrical switch boxes shall be perfectly in line with plaster.
For Bond Coat / Key Coat curing should be done for minimum 3 days.
For finish Coat Curing should be done for minimum 10 days.
After completion of plaster clean the floor and all electrical boxes.
This standard operating procedure enumerates the scope of AAC Block masonry work to be executed in the Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per the procedure.
Safety & protection:
Blocks shall be stacked properly near the place of work (Do not stack too large quantity near the work area thereby causing safety hazards)
The height of the stack should not be more than one and a half meters.
Scaffolding to be braced adequately
Working space to be clear of rubbish waste mortar etc so that easy access is ensured.
Scaffolding to be checked for the load-carrying capacity and ensure no overloading.
Material hoists should be checked for load carrying capacity and ensure no overloading. Material hoist third-party safety inspection reports should be submitted by the contractor before using the hoist for material shifting.
Lifting, manual transporting of blocks, etc have to be carried out by workers who are properly trained. Otherwise, this may cause serious injuries to workers.
Chasing in the blockwork has to be carried using appropriate cutting tools only. While chasing the worker must wear proper safety appliances like shoes, goggles, helmets, etc.
Throwing debris from height is strictly prohibited.
Before commencement of blockwork in front of the lift shaft safety permit should be taken.
CT props to be fixed in the front lift shaft to tie the safety belt.
Hard barrication to be cut only by gas cutting (If any anchored in concrete along the openings and edge of the building).
PPEs should be used properly.
Educate the workmen through the pep-talk meetings.
Preparatory works:
Ensure the availability of a detailed layout of the Flat showing room dimensions, the thickness of walls at various locations in the Tower, details of openings (with sizes) to be provided in the walls for doors, windows & other openings. Details of cross walls to ensure proper bond in main walls, location details of concealed items such as electrical conduits, telephone conduits, conduits for TV Antenna wires and cables, location details of items such as water supply pipes with details of the inlet, outlet, and crossings of service lines, sanitary pipes with details of the inlet, outlet and crossings of service lines, openings or holes for positioning of water closet p / straps, openings required for air conditioning ducts, pipe sleeves to be left in walls for other service pipes.
Do check for customer changes prior to execution of blockwork.
Starting the blockwork:
Scrub & clean the floor area with the proper tools, where blockwork is to be done.
Mark the wall lines on the floor to get the proper layout of blockwork, check the clear height between the floor top and the beam bottom/slab bottom, where block work is to be done.
Decide on the thickness of leveling course mortar to avoid wastage/cutting of blocks at the top course and to maintain the gap of 10 to 15mm at top of blockwork. The thickness of leveling course mortar should not be more than 25mm.
Mix quantity of mortar, which will be consumed in the next 2 hours only. Mixing shall be done with proper measurements of ingredients in the proportion of 1:6 with pharma, where 1 part is cement and 6 parts is crush sand. The mixing platform/Tray must be clean. (If more quantity is mixed and will not be consumed within the time, cement will start setting leading to weaker masonry).
Add water to the dry mix of cement crush sand in the required quantity.
Prepare a scheme of scaffolding, draw a sketch and pass on the same to Workers for execution. Ensure safety aspects such as stability, proper joints, etc. Check and ensure availability of scaffolding materials, access ladder or staircases, working platforms, etc.
Blockwork base course, alignment & jointing:
Fix one block at both ends of the wall in level as per layout.
Blocks should be wet before placing to avoid absorption of water from mortar.
Carry out leveling course of blockwork with a dry bond (i.e. without mortar in the vertical joints, lay the blocks in position) by fixing line thread on end blocks. Use a piece of plywood to have uniform vertical joints.
Lay mortar for full bed width and for a length of 3 blocks at a time.
Lay one block at a time & gently pressing it in the mortar bed.
Excess mortar coming out on the edge (while pressing block in position in bed mortar) to be taken by trowel and reused.
Use straight edge/spirit levels on top of the blocks laid & check the top level.
Make sure that the spirit level is in working condition & read the bubble carefully.
Lay the last closure block in the course, to close the bond and locate it to be near the center of the wall normally.
Check the layout of leveling course blockwork and then fill all vertical joints of blocks with cement mortar.
As soon as mortars in the joints have initially set, use a proper tool and strike the vertical joints first. The horizontal bed joints are to be raked next to a depth of 10 mm.
Curing to the base course should be done for the next 7days.
Blockwork with Adhesive:
After completion of the base course, Blockwork should be done with approved block adhesive.
Block adhesive should be mixed thoroughly with water in the proportion specified by the manufacturer.
Block adhesive should be applied with an adhesive application trowel only to ensure uniform application.
Before starting the block fixing work above the base course, the positions of full and cut (required size) blocks should be finalized to ensure the staggered vertical joints are at least 6 and to minimize the wastage of blocks. This can be done by making elevation sketches/drawings for walls and pass on the same to Workers for execution.
The adhesive should be applied on both faces were block to RCC joint comes and on one face where block to block joints come.
Clean the surface of the block and apply adhesive on it from the end of the wall. Fix the block on adhesive by pressing it within 3 minutes.
For fixing the next block apply the adhesive on two sides (i.e.- the face of the block fixed earlier and at the top of the below block) and fix the block in position with the help of a wooden mallet.
Each fixed block should be checked for its line, level, and plumb by a mason.
The thickness of the adhesive is 3 to 4mm if not checked at the time of fixing will result in unleveled blockwork with the cavities in joints.
While fixing the block between two laid blocks, the adhesive should be applied on all three sides of the block.
Repeat the above points for building more courses.
All joints should be sealed from all sides while fixing blocks.
If the corners of blocks are broken then they should be filled and finished to the surface of the wall with cement mortar.
A clear gap of a minimum of 10mm should be left between the topmost layer and the RCC bottom.
This gap should be filled with very lean mortar and 10mm aggregates should be fixed on the surface.
This is to prevent the cracks afterward in the wall plastering (due to the presence of different materials like block and RCC).
If the gap is bigger than 20mm the mortar with aggregate should be made to fill it.
In the double-wall area, an opening for water drainage and circulation of air should be made in chajja. After doing three layers of blockwork, ghotai to the chajja should be done with a slope towards the opening. Ghotai should be done on all sides of the box up to 300mm in height.
Height of Construction:
No part of the wall during construction shall raise more than one and a half meters above the general construction level.
Curing:
In hot & dry weather the mortar is likely to dry up before it has attained its final set in the blockwork. This leads to the crumbling of mortar and resulting in weak block masonry. This shall be prevented, by keeping the base blockwork layer constantly wet, for at least seven days. Blockwork is done with adhesive doesn't require curing.
Dos & Do not:
Do stack the blocks on a proper platform & clean surface.
Do stack blocks at just a convenient location for immediate use.
Do not overrule safety aspects to achieve timely completion.
Important Note:
New masons should not be deployed directly on work without Training. The quality department will train the masons. On arrival of new masons at the site, information should be provided to the quality department by the respective Tower-in-charge.
This standard operating procedure enumerates the scope of Formwork to be executed in Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per procedure.
Safety & protection:
PPEs like safety belts at height, helmets, safety goggles, ear plugs, hand gloves and safety shoes etc. should be used properly.
Ensure the working area is kept clean for easy access and formwork materials are being stacked correctly.
Proper illumination to be provided during the work, if required.
Educate the workmen through pep-talk meeting.
Preparatory works:
Contractor should submit a Formwork Scheme Drawings for the formwork system which he is going to use at site.
Do calculate total required materials for formwork as per scheme drawing and ensure the availability at site to achieve a cycle time.
Keep 3mm sponge sheet in stock for making old concrete to shutter joint.
Formwork should be free from damages and holes on it. Do not use damaged shutters; it can be use only after doing correct repairs to the satisfaction level of Tower-in-charge.
In Case of holes on shutter, it should be sealed with PVC plug cap.
Do clean and oil shutters before fixing them in place.
Do not allow contractor to cut the shutters at working area, to prevent saw dust in formwork.
In Load Carrying props ensure Minimum 12mm dia pin is being used.
Work Method:
For Columns:
Ensure starters of minimum 6 inches are casted.
Reinforcement is clean and free from mud, oil, mortar droppings, loose rust, paint, oil, grease or other deleterious matter
Before fixing shutters to column, reinforcement should be checked by Tower-in-charge.
Do use 3mm sponge sheet to seal gap between old concrete and shutter joint by applying it around concreted faces of column and then fix shutter over it.
Fix shutters to column as per scheme drawing.
Check formwork for its Cross sectional size and diagonals.
Check the Plumb of erected formwork.
Do check spacing of formwork primary and secondary member is as per scheme drawing.
For Slabs and Beams:
Ensure column concrete top is below or at beam bottom level.
Do fix shutters as per formwork scheme drawing.
Ensure there should not be any gap between adjacent shutters, in case there is gap it should sealed correctly by fixing rib inside and covering it from top with masking tape.
Ensure all Load Carrying props are in plumb and in line. In case of missing pin do not use pin of less than 12mm dia.
Additional prop should be fixed at the joint of shutter at beam bottom.
In case of Acrow spans are being used, they should be overlapped by minimum 2 feet.
Slab and Beam bottom levels should be checked prior to fixing reinforcement on it.
Do check plumb of column caps and beam sides.
Do check alignment of formwork as per drawing.
Dos and Do not’s:
Do’s:
Do clean and oil shutter before fixing it in place.
Do plug the holes on shutter with PVC caps if any.
Use sponge sheet to seal gaps at joint.
Do fix all load carrying props in plumb.
Do nots:
Do not allow oiling on shutter once reinforcement activity is started.
Do not allow use of damage shutter without repairing.
This standard operating procedure enumerates the scope of Reinforcement Work to be executed in Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per work procedure.
Safety & protection:
Ensure the workers use safety appliances like safety belts at height, helmets, safety goggles, safety shoes etc.
Ensure the working area is kept clean for easy access and formwork materials are being stacked correctly.
Proper illumination to be provided during the work, if required.
Educate the workmen through pep-talk meeting.
Preparatory Works:
All reinforcement work shall be executed in conformity with the drawings supplied and instructions given by the Tower-in-charge and shall be generally be carried out in accordance with relevant Indian standard specifications (IS 2502).
While transporting, care will be taken for ensuring that the bars do not suffer any damage and are safely handled. HYSD bars will be properly stacked and identification and traceability should be properly ensured in the places of work and any further checks as desired could be ensured there.
Do prepare bar bending schedule before cutting any bars.
Work Method:
Bending & Cutting:
The Contractor shall be responsible for preparing, checking all bar bending schedules against the drawing and obtain approval from the Tower-in-charge before cutting and bending and prior to fixing of steel.
Neither the size nor the length of a bar shall be less than the size or length shown in the drawings
The dimension of bends shall be so given that a minimum amount of calculation is necessary for marking of bars. The dimensioning procedure shall be used as per drawings and in absence of dimension on drawings, IS: 2502 shall be referred for bending. Dimensions shown in the bar bending schedule shall be checked before cutting the bars.
Bending of bars shall be done in cold conditions only and no heating is permitted on bars. Load shall be applied gradually. Bar once bent shall not be reworked for modification without the approval of the Tower-in-charge.
Bars having cracks or splits on the bends shall be rejected.
After bending of bars, they shall be properly tagged according to drawing number and bar mark for easy identification.
Spacing, Fixing and Cleaning:
All reinforcement shall when fixed in position and at the time of concreting be clean and free from mud, oil, mortar droppings, loose rust, paint, oil, grease, or other deleterious matter.
All reinforcement shall be placed and maintained in the positions shown on the drawings.
All cover blocks shall be either of PVC or of concrete or of cement mortar of the same strength as that of the surrounding concrete. Proper size of cover block shall be provided at the time of fixing of rebars.
18 swg wire shall be used as binding wire. All bars crossing one another shall be bound with this wire twisted tight to make the skeleton on network rigid.
The free ends of binding wire shall be bent back inwards
Laps in reinforcement shall be provided as indicated on the drawings. Laps shall be staggered as far as practicable for different bars and located at points along the span where neither shear nor bending moment is maximum and as directed by the Structural Consultant.
At one place do not lap more than 50 % of bars.
As and when necessary welded laps shall be provided as specified by the Tower-in-charge, and shall be in accordance with IS code 2571 requirements.
Important Notes:
Ensure ring hooks are bent at 1350 after fixing of reinforcement in place.
After fixing reinforcement in place do not allow contractor for doing re-oiling on shutter.
Round cover blocks with hole inside should be fixed in rings at the time of reinforcement fixing.
Rebar chair should be fixed on bottom reinforcement of slab only by proper tying its leg with binding wire and do not allow to place rebar chair directly on shuttering.
This standard operating procedure enumerates the scope of Concrete Works to be executed in the Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.
Responsibility:
The respective Tower-in-charge is responsible to execute the work as per work procedure.
Safety & protection:
Ensure the workers use safety appliances like safety belts at height, helmets, safety goggles, safety shoes, etc.
Ensure the working area is kept clean for easy access.
Proper illumination to be provided during the work if required.
Educate the workmen through pep-talk meetings.
Preparatory Works:
Ensure calibration of weigh batcher, water dispenser is done every six months.
The amount of the water added shall be adjusted to compensate for any variations in the moisture content. To allow for variations in the mass of aggregates due to variation in the moisture content, suitable adjustments in the masses of aggregates shall be made. It should be done by QC Department.
Ensure all equipment related to the concrete are available and is in working condition.
Production of Concrete:
Production of concrete should be done as per approved mix design and by weight batching only. In any case, do not allow volume batching.
1st batch of days production should be made in front of Tower-in-charge and should be checked for the required slump. If any variation in produce concrete is observed should be informed to the QC department and after correction batching should proceed.
It is a must to monitor the consistency of the mix in each batch of concrete. The first three batches should be done in front of the Tower-in-charge and then further should be monitored by the concrete supervisor.
The concrete shall be mixed in a mechanical mixer. The mixing shall be continued until there is a uniform distribution of the materials & the mass is uniform in color & consistency.
If there is segregation after unloading from the mixer, the concrete should be remixed.
All Concrete will be conveyed from the mixer and/or Batching Plant to the place of final deposit in buckets, transit mixers, containers, without segregation.
Concrete will be transported with all precautions to prevent loss of water by evaporation in hot weather and heat loss in cold weather conditions. No concrete will be transported and placed in the open, while it rains.
All equipment used for transporting and placing concrete will be thoroughly cleaned after each period of placement.
The mix after discharging from the mixers shall be transported by wheelbarrows, buckets, pumps, etc. without causing segregation and loss of cement slurry and without altering its desired properties, with regard to water-cement ratio, slump, cohesion, and homogeneity.
Placing:
Before placing the Concrete all reinforcements steels, embedded parts, water stoppers shall be correctly placed, aligned, and securely held in positions and formwork fixed. Concrete will be deposited in successive layers in its final position, as nearly as practicable, to avoid segregation due to re-handling.
The concrete shall be placed & compacted before the initial setting of concrete commences & each layer of concrete shall be compacted fully before the succeeding layer is placed
For locations where direct placement is not possible and in particular through narrow forms, suitable drop chutes will be provided to confine the concrete in movement.
Long troughs, chutes, and pipes will be kept free from coatings of hardened concrete. Open troughs and chutes shall be of metal or metal lined.
Concrete shall be placed carefully to avoid displacement of reinforcements, embedded parts. Concrete shall not be permitted to fall freely from a height of more than 1.5 m or to strike the forms at an angle.
Placement of Concrete by Pumping:
The receiving hopper of the pump shall have a hydraulically/electrically operated remixing blade to keep the concrete mixed continuously and maintain consistency and uniformity.
The pipelines will be made of seamless and high-quality precision steel pipes. At the face of the placing boom, a heavy-duty flexible hose may be attached to facilitate Concrete Pouring. Strong Couplings will be used to clamp both the flexible and rigid pipes in proper alignment.
Accessories like curved sections of rigid pipes, swivel joints, rotary distributors, pin and gate valves to prevent backflow, air vent for downhill pumping, etc. shall be provided as per the requirements.
At the start of the pumping operation, cement slurry or pumping aid shall be allowed to pass through the pipeline to lubricate the inner surface of the pipes.
During the placing of concrete first, place the concrete in the column area and then in the beam. Do not allow rollover concrete from beam to column.
Compaction:
Each layer of Fresh Concrete shall be thoroughly compacted by vibrators to the minimum practicable consolidated volume.
The concrete to be vibrated shall be placed in position in level layers of suitable thickness not greater than the effective length of the vibrating needle. It is advisable to have concrete layer thickness not more than 600mm(in vertical members) for effective vibration.
A vibrator needle shall be inserted vertically inside the Concrete and shall be allowed to penetrate through by its own weight. Vibration shall not be stopped when the needle is immersed in Concrete.
The vibrator shall penetrate fully into the layer being placed and also penetrate about 100 to 200 mm in the already consolidated lower layer for good bond and homogeneity between the two layers and to prevent the formation of cold joints. The vibrators shall be withdrawn slowly out of the concrete so as to allow the concrete to flow back into the hole behind the vibrator.
The spacing of insertion shall be at intervals of about 450 mm to 700 mm depending upon the mix. The specified spacing between the inserting positions shall be maintained uniformly throughout the surface of the concrete so that the concrete is uniformly vibrated.
The spacing shall provide some overlapping of the area vibrated at each insertion. It is better to insert the vibrating head at a number of places than to leave it at one place for a long time.
The range of action & degree of consolidation can be recognized from the rising air bubbles & the formation of a smooth textured surface around the vibrating head.
The vibrator needle shall be kept clear from forms. The vibrator shall be prevented from coming into contact with the reinforcement bars, embedded parts. Over vibration shall be avoided.
Compaction of concrete at junctions with hardened concrete:
The hardened concrete surface shall be prepared by hacking or roughening & removing laitance, greasy matter & lose particles.
The cleaned surface shall be wetted. Cement paste of creamy consistency or Cement SBR (Nitto Bond) mix shall then be applied to the wet surface of old concrete & fresh concrete vibrated against it.
Curing of Concrete:
Exposed surfaces of concrete shall be kept in a damp or wet condition by ponding (with vatta of 50mm thick) or by covering with a layer of sacking, canvas, or similar materials.
The curing shall be started after the initial setting time of concrete & the same shall be continued for a minimum of 10 days.
The curing water shall be the same as that is used for construction purposes.
Sampling & strength of concrete:-
Minimum 12 cubes (4 samples) for concrete irrespective of its quantity should be made.
Samples should be distributed over whole concrete batches and should be taken randomly.
3 cubes should be made from each sample by filling the cube in 3 layers and each layer should be compacted with a tamping rod 35 times.
Cubes after finishing should be embossed with binding wire or nail or any suitable mean and should show;
Grade of concrete.
Date of concrete.
Location of Concrete.
Cube Number should be started with 1 and first 3 cubes of number 1,2,3 should be of the same batch and next 4,5,6, number cube should be of the same batch taken at another interval and so on.
Before casting cubes, ensure cube molds are in perfect alignment and oiled when it is dismantled for cleaning.
Note: In all cases, the 28 days compressive strength specified shall alone be a criterion for acceptance or rejection of the concrete.
Frequency of sampling when concrete quantity is more:
The minimum frequency of sampling of each grade (For RMC):
Quantity of concrete in Cum Number of SPECIMENS/Grade
1 Cum to 5Cum 6 Nos
6 Cum to 15 Cum 3 Nos
16 Cum to 30 Cum 3 Nos
31 Cum to 50 Cum 6 Nos
51 and above 18+ three additional specimens for each additional 50 m3 or part thereof.
Test results of sample:
The result is for the average strength of three specimens.
The individual variation should not be more than + 15 percent of the average. If more, the test results of the sample are invalid.
Stripping of formwork:
The following striking period shall be adopted when the ambient temperature does not fall below 150C:
1. Vertical formwork to columns, walls,
2. beams 18 24 hours.
3. Soffit formwork to slabs 7 days.
4. Soffit formwork to beams 14 days.
Records:
Records of concrete poured indicating place, quantity and other particulars will be maintained.
INSPECTION RECORDS:
The following records pertaining to Concrete Works will be prepared and maintained:
1. Concrete Pour Card
2. Post Concrete Inspection
3. Test Results of Fine Aggregate
4. Test Results of Coarse Aggregate
5. Sieve Analysis of Fine Aggregate
6. Sieve Analysis of Coarse Aggregate
7. Combined grading for All In Aggregate with 20 mm MSA Batch Weight Field Concrete Data
8. Concrete Request/program
9. Concrete Dispatch details
10. Calibration of Weighing Scale
Concrete surface:
1. The face of concrete for which formwork is not provided other than slabs shall be floated to a smooth finish. The floating shall be done so as not to bring an excess of mortar to the surface of the concrete.
2. Slab top should be broomed finish.
3. After casting of column and walls, do insert 20mm metal halfway into it to form a construction joint.
4. All Concrete surfaces which receive plaster should be hacked properly with hacking tools.
Designation of Contact
Person Company Mobile Number
Secondary Mobile
Number
Landline Number
Email id
Website URL
G
Business Address Details:
Copy of Latest Electricity Bill
Copy of LatestPropertyTax Challan
H
Passport Size Photograph of Proprietor
I
Partner/ Director/ Authorised
Signatory Details
Full Name Fathers Full Name
Copy of PAN Copy of
Aadhar Mobile Number
Email id Passport Size Photo
2.Past Experience Details
Sr. No
Particulars
Details
A
Project Name
B
Project Type
i.Residential
ii.Commercial
iii.Mixed (Plots&
Buildings)
iv.Plot
v.Industrial
vi.Others
C
Land Area (Sq. Mts.)
D
Address of Project
E
Number of Buildings/Plots
F
Number of Apartments
G
Total Cost
H
CTS No./ Survey No/ Final Plot No.
I
Original Proposed Date ofCompletion
J
Actual Date of Completion
3.Membership Details of Self Regulatory Organizations :
CREDAI MAHARASHTRA
MembershipNumber
CREADAI MCHI
NAREDCO
MARATHI BANDHKAM VYAVSAHIK ASSOCIATION
OTHERS
4.Project Details
Sr.No
Particulars
Details
A
Project Status
i.On-Going
ii.New
B
Project Name
C
Project Type
i.Residential
ii.Commercial
iii.Mixed(Plots & Buildings)
iv.Plot
v.Industrial
vi.Others
D
Proposed Date of Completion
E
Revised Proposed Date of Completion
F
Address Details of Project
G
Whether Litigation
related to the project? If Yes–
1.Project Name
2.Name of Court
3.Type of Case–Criminal,
Civil or Others
4.Petition–Writ, Suit,
Appeal or Arbitration Appeal
5.Case Number
6.Year
7.Copy ofPreventive /Interim/Injunction Order Passed if any
8.Present
Status
YES/NO
H
Whether any Co-promoter
involved? IF YES
Co-promoter Details as per point 1
YES/NO
I
Land Details
i.CTS No./Survey No.
ii.Area Sq.Mts
iii.Aggregate Area of RecreationalOpenSpace(SqMts)
iv.Total Building Count
v.Sanctioned Building
Count
vi.Proposed but not sanctioned building count
vii.Boundaries
1.East
2.West
3.South
4.North
J
FSI Details
i.Built-Up area as
per Approved FSI(sq. Mts)
ii.Built-Up Area as
per proposed FSI (Sq. Mt)
iii. Total FSI
K
Details of Separate Bank Account
i.Bank Name
ii.Branch Name
iii.IFSC Code
iv.Bank Account No
v.Bank Address
5.Building Details (Each Building Wise)
a.General Info
I.Name
II.Number of Basement
III.Number of Plinth
IV.Number of Podium
V.Number of Slab of the superstructure
VI.Number of Stilts
VII.Number of Open Parking
VIII. Number of Closed Parking
IX. Date of Completion
b.Apartment Type Details
1.Apartment Type (1BK,2BK,etc)
2.Carpet Area (Sq Mts)
3.Proposed No. of Apartments
4.Number of Apartments booked/sold/allotted
c.Common Area sand Facility Details
Particulars
Proposed
Percentage of Completion
Details
No. of Garages
(in Numbers)
CoveredParking
(inNumbers)
Internal Roads &
Footpaths
Yes/No
If No, then do not
fill this column
If No, thendo not fillThis
column
Water Supply
Yes/No
If No, then do not
fill this column
If No, thendo not fillThis
column
Sewerage (Chamber,
Lines, Septic Tank, STP)
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Storm Water
Drains
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Landscaping &TreePlanting
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Street Lighting
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Electrical Meter
Room, Sub-Station, Receiving Station
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Aggregate area of
Recreational Open Space
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Open Parking
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Community Buildings
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Treatment And Disposal
OfSewage AndSullage Water
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Solid Waste Management And Disposal
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Water Conservation, Rainwater harvesting
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Energy management
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Fire Protection And Fire Safety Requirements
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
Specify other amenities if any
Yes/No
If No, then do not
fill this column
If No, then do not fill This column
d.Project Professional
Details
Particulars
Details
i.Real Estate Agent
Reg. No.
Full Name
Address
Aadhar No
Contact No
E-mail Address
ii. Contractor (All Contractor Details, RCC,
Electrical, Plumbing, Etc.)
Reg. No.
Full Name
Address
Aadhar No
Contact No
E-mail
Address
iii.Architect(who
issues form1)
Full Name
Address
Aadhar No
Contact No
E-mail Address
iv. Structural Engineer (who issues form 2 )
FullName
Address
Aadhar No
Contact No
E-mail Address
v.Chartered Accountant (who issues form 3)
Full Name
Address
Aadhar No
Contact No
E-mail Address
vi. Chartered Accountant (who issues form5)
FullName
Address
Aadhar No
Contact No
E-mail Address
vii. Any Other Project Professional with their designation
6.Project Cost Details
Sr. No.
Particulars
Estimated
Total Amount
Actual
Total Amount
1
Land Cost
A
Acquisition Cost
of Land or Development Rights, lease Premium, lease, rent, interest cost incurred
or payable on Land Cost and legal cost
B
Amount of Premium
payable to obtain development rights, FSI, additional FSI, fungible area, and
any other incentive under DCR from Local Authority or State Government or any
Statutory Authority
C
The acquisition cost of TDR(if any)
D
Amounts payable to State Government or competent
authority or any other statutory authority of the State or Central
Government, towards stamp duty, transfer charges, registration fees, etc; and
E
Land Premium payable
as per the annual statement of rates (ASR) for the redevelopment of land owned by Public authorities
F
Estimated construction
cost of rehab buildingincluding site development and
infrastructure for the same as
Certified by EngineerActual Cost of construction of rehab building incurred
as per the books ofAccounts as verified
by the CA
Cost towards clearance
of the landof all or anyencumbrancesincluding the cost of removal of legal/illegal occupants,
cost for providing temporary transit accommodation or rent in lieu of Transit
Accommodation, overhead cost
Cost of ASR linked
premium, fees, charges and security deposits or maintenance deposit, or any amount
what so ever payable to any authorities
Towards and in project
of rehabilitation
2
Development Cost/
Cost of Construction
A
Estimated Cost of Construction as certified by Engineer and
Actual Cost of construction incurred as per the books of accounts as verified by the CA
On-site
expenditure for the development of the entire project
excluding the cost of construction as per (ii) above, i.e. salaries, consultants fees,
site overheads, cost of services (including
water,
electricity, sewerage), cost of machinery and equipment including its hire and
maintenance costs, consumables, etc. All costs directly incurred to complete
the construction of the buildings /wings of the projectregistered
b
Payment of Taxes, cess, fees, charges, premiums, interest, etc. to any statutory Authority
c
Interest payable
to financial institutions, scheduled banks, non-banking financial institution
(NBFC) or money lender son construction funding or money borrowed for construction.
Principal Amount:
3
Total Estimated
Cost of the Real
Estate Project
7.PROJECT COMPLETION DETAILS:
Sr. No.
Task/Activity
Percentage of Work
1
Excavation
2
X number of Basement(s) and Plinth
3
X number of Podiums
4
Stilt Floor
5
X number of Slabs of Super Structure
6
Internal walls, Internal Plaster, FlooringsWithin Flats/ Premises, Doors and Windows to each
of the Flat/Premises
7
Sanitary Fittings within the Flat/ Premises, Electrical Fittings within the Flat/Premises
8
Staircases, Lifts Well sand Lobbies at eachFloor level connecting Staircases and Lifts, Overhead
and Underground Water Tanks
9
The external plumbing and external plaster, elevation,completionofterraceswith Waterproofing of the Building/Wing
10
Installation of
lifts, water pumps, Fire Fighting Fittings and Equipment as per CFONOC, Electrical
fittings to Common Areas, electro, mechanicalequipment,Compliance with conditions
of environment/ CRZNOC, Finishing to entrance lobby/s, plinth protection, paving
of areas appurtenant to Building/Wing, Compound Wall, and all other requirements
as may be required to Obtain
Occupation/Completion Certificate
DOCUMENTS REQUIRED (Scanned Copies)
a.Copy of the legal title report
b.Details of encumbrances (If No Encumbrance then letter of self
certification by promoter stating no encumbrances)
c.Copy of Layout Approval (in case of layout)
d.Performa of the allotment letter and agreement for sale
e.Declaration in FORM B
f.Certificates of Architect (Form1)
g.Certificates of CA (Form3)
h.Certificates of Engineer (Form2)
i.Commencement Certificates.
j.Building Plan Approval (IOD)
For more details, you can visit https://maharerait.mahaonline.gov.in/
