Checklist
Content
CHECKLIST FOR EXCAVATION Before Excavation 1. Check whether Railings/ Pillars are done properly & establish TBM.
2.
Check the line out and mark the excavation with lime.
3. Note the Original Ground level with respect to TBM. 4. If the depth of foundation is deep enough make sure that sufficient working space is kept while excavation.
5.
Check the tools required like Phavdas, Tikavs, ghamelas are in adequate quantity and in proper working order.
6. If equipment like JCB, dumpers are used make proper access roads and select a proper places to dump the excavated material. Decide the method/ process/ sequence of excavation. 7. Check availability of water pumps for dewatering if required. Avoid water logging on site because of dewatering. 8. Check availability of material for shoring, if required. 9. If any service line/ existing structure is exposed during the excavation, inform it to the consultant and obtain a decision from him regarding the matter. During Excavation 1. Select a proper place to dump material, which can be used for backfilling. 2. Finalize strata to rest foundation in consultation of the Consultant/ Client. 3. If the bottom level is already decided (in case of M/C foundations, drains etc.) and the strata is not acceptable (e.g. loose/ black cotton soil) the consultant’s advice. In normal practice the excavation is done upto an acceptable strata and then it is filled with PCC 1:5:10 plum concrete upto required level. Record the measurements under proper item and if the item is unavailable record measurement & inform billing engineer accordingly.
CHECKLIST FOR P.C.C. 1. Clean the excavation from any loose material, grass roots etc. Check the line, level and confirm the strata from the consultant. 2. Check Anti-termite treatment is done properly, if specified. 3. Check shuttering with channels & planks wherever required. 4. Record the excavated ground levels or measure the excavation depth, in presence of client’s/ consultant’s representative as joint record for excavation.
5.
Check the required level of PCC top and mark the Thiyyas before starting of concrete.
6. Check the Quantity of concrete in cum. 7. Check the grade of concrete mix 1:3:6 /1:4:8/1:5:10. 8. Check the Theoretical cement consumption in bags. 9. Only machine mixed concrete to be used. In case of difficulty get site engineers/Consultants permission before handmixing. 10. Compact and level the PCC Top while pouring of the concrete. 11. Record the actual cement consumption in bags.
CHECKLIST FOR SHUTTERING 1. Level of slab /beam from proper reference level should be checked precisely. 2. Check quality of shuttering material. Sort out unusable material. 3. Check balance height of column casting is not more than 1'0". 4. Check material for column caps shuttering has proper plywood backing. 5. Ensure fixing of cap to columns in proper plumb & level. 6. Check line & level of all beam bottoms by dumpy level if required. 7. Check verticality of props & distance between props about 2'0". 8. Check diagonals between beam bottoms after all bottoms are leveled and before fixing beam sides. 9. Check plumb & line of all beam sides and take random check of diagonals again. 10. Prepare plan of plates/ plywood & span /planks laying. 11. Check proper & strong junction between beam sides & spans. 12. Check level of spans/ planks. 13. Ensure plates /plywood are cleaned properly. 14. Check laying of plates / plywood as per prepared plan. 15. Check verticality and stability of all props. 16. Check if extra props required below spans. 17. Extra prop at centre to be provided below span if span is more than 11'0" length. 18. Check horizontal bracing. Double bracing required for heights more 12'0". 19. All surfaces to be cleaned. Proper shutter release oils/chemicals to be applied to all surfaces as per manufactures specifications. Staging to be checked by Senior Engineer and his approval to be taken before laying reinforcement.
CHECKLIST FOR REINFORCEMENT
•
FOR BEAMS
1. Bar bending schedule to be prepared by the site engineer for cutting of reinforcement. 2. The diameter and number of both straight and bent-up bars, curtailed bars as per the structural drawing should be double-checked. 3. The stirrups should be bent in perfect plumb with proper hook .It should be of proper diameter and size based on beam size. 4. If the reinforcement is to be placed in more than one layer, pin of the larger diameter should be used with proper spacing. 5. For beam width of 6", not more than two bars should be placed in one layer. 6. For beam width of 9", three bars may be placed in one layer. 7. Binding of stirrups to the main bars is important to avoid displacement during concrete. 8. Check if any dowels are to be provided. 9. All laps, extra bars, spacers etc. provided should be recorded as joint measurement. • FOR SLABS
1. The diameter and spacing of both straight and bent-up bars should to be as per the structural drawing and should be double-checked. 2. Distance of the bent-up bars from the face of the beam should be checked and matched as per the general drawing issued by the structural consultant. 3. Chairs of adequate diameter should be placed below the bent-up bars. 4. The slab depth should be checked for each and every span. 5. 1" cover to be provided for slab main bars. 6. Check if any dowels are to be provided. 7. All laps, extra bars, spacers etc. provided should be recorded as joint measurement.
CHECKLIST FOR CONCRETE Before Concrete 1. Check whether all unwanted loose dirt, dust, paper, rag, wire, oils, etc. removed from the surface where the concrete has to be placed. 2. Check the shuttering material for loose joints, rough surface etc. 3. Check wooden chairs of proper depths for concrete are prepared in sufficient numbers. 4. Distribution of work responsibility of staff during concreting to be clearly defined. 5. Check whether reinforced steel with proper clearance is provided as per schedule. 6. Check whether shuttering erected is in line, level, plumb. Take the adequate precautions to keep the shuttering strong and water tight. Use proper material for filling the gaps. 7. Check props for stability verticality. 8. The additional staging done should be adequate and strong. Sr. Site Engineer to check staging. 9. Check grade of concrete mix. 10. Check whether position of insert is proper and secured in line & level. 11. Check whether cut outs are provided at proper position & secured. 12. Check whether quantity of admixtures is available and added if specified. 13. Check quantity of concrete in cum/ cft. 14. The material required should be stacked in proper position. 15. Check the equipment required e.g. Mixer, Vibrator surface Vibrator, Lifts etc. are in proper working conditions and placed on proper places. Make sure that the fuel, oil required for them are in adequate quantity. 16. Check and prepare cube moulds & slump cones. 17. Check proper scaffolding erected for lift & check lift operation well in advance. 18. Check theoretical cement consumption in bags.
During Concrete 1. Check slump of concrete. 2. Note no. of cubes and make proper marking on the cubes. An engineer should be present at the time of casting of the cubes and he should take care that the cubes are compacted and filled properly. 3. The supervisor at mixer machine should keep a watch on the proportion of aggregate and sand. The water should be poured by bucket of known volume and water cement ratio should be strictly monitored Ghani Register to be strictly maintained. 4. Proper compaction should be done in layers and excess compaction should be avoided. The required level of concrete should be maintained and finishing should be done wherever necessary (e.g. slab top) 5. Any leakage observed during the concreting, measures to stop the leakage should be taken immediately. 6. Note the actual cement construction in bags.
CHECK LIST FOR BLOCK/ BRICK/ STONE MASONARY Before Construction 1. Clean the area where Block Masonry/ Brick Masonry/Stone Masonry is to be constructed. 2. Calculate the quantity of the masonry and define the material requirement such as cement, sand, bricks/ blocks/ stones etc. Place the material at proper locations. 3. Sufficient hacking is to be done to the concrete surfaces. 4. Check the cement mortar proportion and prepare the mix using measuring boxes only in mortar tray or a proper platform. Keep check on the water cement ratio. Also make sure that the mortar quantity is not more of 1 bag of cement at a time. 5. Provide H Frame/ Pipe/ Tripod scaffolding wherever needed and make sure that the scaffolding is strong enough. Try to minimise the supports through the masonry. 6. The sand used should be clean, screened sand to be used for half brick masonry. During Construction 1. Line, level and plumb of the masonry should be constantly checked for each layer. 2. The thickness of joint should be as specified (normally it is 10mm) and it should be uniform throughout the construction. 3. All joints should be racked upto 8 to 10mm from the surface of the masonry after laying of the brick/ block/ stone to avoid racking at the time of plaster and also the mortar stuck on the brick/ block/ stone surfaces should be cleaned. 4. The joints in brick/ block masonry should be staggered and for stone masonry a header stone should be provided in every layer and staggered at 1 to 1.5m distance from both sides.
5.
For half brick thick masonry a RCC bond of 3” to 4” (patli) should be provided at every 0.9 to 1m interval. In normal case the reinforcement provided is 2 nos. of 6mm dia. rods.
6. Check the diagonal of the door and window frame, which is to be fixed. Place the frame in position and plumb should be checked from inside and outer face of the frame. Also check on which face of the wall the frame has to be fixed. 7. Fix the jambs in M15 concrete if the frame has to be fixed in masonry and in case of column the jambs should be fixed with help of screws. After Construction 1. Clean all the mortar on the floor especially the area where the mortar is mixed. This will help to avoid cleaning at the time of flooring. 2. Check the actual consumption of cement.
CHECK LIST FOR PLASTERING
•
Prior to first coat of plaster:
1. The masonry to be plastered shall be kept wet from one day before the plastering day. 2. Calculate the quantity of plaster and stack the required material is stacked at proper location. 3. Erect scaffolding wherever necessary and make sure that it is strong enough to take the load. 4. All repairs, gap filling, hacking and chiseling of projections for masonry and concrete surfaces should be completed before starting of plaster.
5. 6. 7.
Fixing of chicken mesh, charpatti wherever required shall be completed a day before plaster. Make level dots of required plastering thickness with help of line dori and plumb. Mortar should be measured with measuring boxes (pharmas) and shall be mixed in a mortar tray. Water cement ratio shall be strictly monitored.
8. If any bonding agent/ waterproofing compound is specified, check the required stock for its use according to instruction given by the manufacturer.
•
First Coat of Plastering:
1. Make sure that the mortar is being used within reasonable time limit after wet mixing. 2. Clean the floor after the plaster and all the wet mortar should be removed and reused.
• 1.
Second coat plastering: Make thiyyas of required plastering thickness with help of line dori and plumb.
2. Check mortar proportion using measuring box & mixing on steel plate platform. 3. Make sure that the mortar is being used within 30 minutes of adding water and with waterproof compound. 4. Check plumb of D/W frames, round edges of D/W jambs. 5. Give texture finish with sponge or smooth trowel as applicable including grooves etc. 6. Clean of D/W frames, chajjas etc. after day's work and remove all the mortar from it. 7. Note the actual cement consumption.
CHECKLIST FOR TILING • Before tiling.
1. Clean the flooring area from dust, loose/ set mortar etc.
2.
Mark the flooring level on the wall with tube level and line dori. The marking should be at least 30cm above the floor level.
3. Check datum level marking and slope to be given. 4. Ensure that the conduits for concealed electrical/ plumbing are laid wherever necessary. 5. The mortar should be mixed by using measuring box. 6. Make level spots with mortar. 7. Check soaking of tiles, if required. •
1.
During tiling: Use line dori for fixing of the tiles in line.
2. Check levels, Drops, slope (if required) 3. Fill the Joins filling with cement slurry or appropriate coloured cement. 4. Level the mortar below the tile to avoid hollowness. 5. Check breakage. 6. Clean the tiles after 12 hours of fixing.
2.
Check the line out and mark the excavation with lime.
3. Note the Original Ground level with respect to TBM. 4. If the depth of foundation is deep enough make sure that sufficient working space is kept while excavation.
5.
Check the tools required like Phavdas, Tikavs, ghamelas are in adequate quantity and in proper working order.
6. If equipment like JCB, dumpers are used make proper access roads and select a proper places to dump the excavated material. Decide the method/ process/ sequence of excavation. 7. Check availability of water pumps for dewatering if required. Avoid water logging on site because of dewatering. 8. Check availability of material for shoring, if required. 9. If any service line/ existing structure is exposed during the excavation, inform it to the consultant and obtain a decision from him regarding the matter. During Excavation 1. Select a proper place to dump material, which can be used for backfilling. 2. Finalize strata to rest foundation in consultation of the Consultant/ Client. 3. If the bottom level is already decided (in case of M/C foundations, drains etc.) and the strata is not acceptable (e.g. loose/ black cotton soil) the consultant’s advice. In normal practice the excavation is done upto an acceptable strata and then it is filled with PCC 1:5:10 plum concrete upto required level. Record the measurements under proper item and if the item is unavailable record measurement & inform billing engineer accordingly.
CHECKLIST FOR P.C.C. 1. Clean the excavation from any loose material, grass roots etc. Check the line, level and confirm the strata from the consultant. 2. Check Anti-termite treatment is done properly, if specified. 3. Check shuttering with channels & planks wherever required. 4. Record the excavated ground levels or measure the excavation depth, in presence of client’s/ consultant’s representative as joint record for excavation.
5.
Check the required level of PCC top and mark the Thiyyas before starting of concrete.
6. Check the Quantity of concrete in cum. 7. Check the grade of concrete mix 1:3:6 /1:4:8/1:5:10. 8. Check the Theoretical cement consumption in bags. 9. Only machine mixed concrete to be used. In case of difficulty get site engineers/Consultants permission before handmixing. 10. Compact and level the PCC Top while pouring of the concrete. 11. Record the actual cement consumption in bags.
CHECKLIST FOR SHUTTERING 1. Level of slab /beam from proper reference level should be checked precisely. 2. Check quality of shuttering material. Sort out unusable material. 3. Check balance height of column casting is not more than 1'0". 4. Check material for column caps shuttering has proper plywood backing. 5. Ensure fixing of cap to columns in proper plumb & level. 6. Check line & level of all beam bottoms by dumpy level if required. 7. Check verticality of props & distance between props about 2'0". 8. Check diagonals between beam bottoms after all bottoms are leveled and before fixing beam sides. 9. Check plumb & line of all beam sides and take random check of diagonals again. 10. Prepare plan of plates/ plywood & span /planks laying. 11. Check proper & strong junction between beam sides & spans. 12. Check level of spans/ planks. 13. Ensure plates /plywood are cleaned properly. 14. Check laying of plates / plywood as per prepared plan. 15. Check verticality and stability of all props. 16. Check if extra props required below spans. 17. Extra prop at centre to be provided below span if span is more than 11'0" length. 18. Check horizontal bracing. Double bracing required for heights more 12'0". 19. All surfaces to be cleaned. Proper shutter release oils/chemicals to be applied to all surfaces as per manufactures specifications. Staging to be checked by Senior Engineer and his approval to be taken before laying reinforcement.
CHECKLIST FOR REINFORCEMENT
•
FOR BEAMS
1. Bar bending schedule to be prepared by the site engineer for cutting of reinforcement. 2. The diameter and number of both straight and bent-up bars, curtailed bars as per the structural drawing should be double-checked. 3. The stirrups should be bent in perfect plumb with proper hook .It should be of proper diameter and size based on beam size. 4. If the reinforcement is to be placed in more than one layer, pin of the larger diameter should be used with proper spacing. 5. For beam width of 6", not more than two bars should be placed in one layer. 6. For beam width of 9", three bars may be placed in one layer. 7. Binding of stirrups to the main bars is important to avoid displacement during concrete. 8. Check if any dowels are to be provided. 9. All laps, extra bars, spacers etc. provided should be recorded as joint measurement. • FOR SLABS
1. The diameter and spacing of both straight and bent-up bars should to be as per the structural drawing and should be double-checked. 2. Distance of the bent-up bars from the face of the beam should be checked and matched as per the general drawing issued by the structural consultant. 3. Chairs of adequate diameter should be placed below the bent-up bars. 4. The slab depth should be checked for each and every span. 5. 1" cover to be provided for slab main bars. 6. Check if any dowels are to be provided. 7. All laps, extra bars, spacers etc. provided should be recorded as joint measurement.
CHECKLIST FOR CONCRETE Before Concrete 1. Check whether all unwanted loose dirt, dust, paper, rag, wire, oils, etc. removed from the surface where the concrete has to be placed. 2. Check the shuttering material for loose joints, rough surface etc. 3. Check wooden chairs of proper depths for concrete are prepared in sufficient numbers. 4. Distribution of work responsibility of staff during concreting to be clearly defined. 5. Check whether reinforced steel with proper clearance is provided as per schedule. 6. Check whether shuttering erected is in line, level, plumb. Take the adequate precautions to keep the shuttering strong and water tight. Use proper material for filling the gaps. 7. Check props for stability verticality. 8. The additional staging done should be adequate and strong. Sr. Site Engineer to check staging. 9. Check grade of concrete mix. 10. Check whether position of insert is proper and secured in line & level. 11. Check whether cut outs are provided at proper position & secured. 12. Check whether quantity of admixtures is available and added if specified. 13. Check quantity of concrete in cum/ cft. 14. The material required should be stacked in proper position. 15. Check the equipment required e.g. Mixer, Vibrator surface Vibrator, Lifts etc. are in proper working conditions and placed on proper places. Make sure that the fuel, oil required for them are in adequate quantity. 16. Check and prepare cube moulds & slump cones. 17. Check proper scaffolding erected for lift & check lift operation well in advance. 18. Check theoretical cement consumption in bags.
During Concrete 1. Check slump of concrete. 2. Note no. of cubes and make proper marking on the cubes. An engineer should be present at the time of casting of the cubes and he should take care that the cubes are compacted and filled properly. 3. The supervisor at mixer machine should keep a watch on the proportion of aggregate and sand. The water should be poured by bucket of known volume and water cement ratio should be strictly monitored Ghani Register to be strictly maintained. 4. Proper compaction should be done in layers and excess compaction should be avoided. The required level of concrete should be maintained and finishing should be done wherever necessary (e.g. slab top) 5. Any leakage observed during the concreting, measures to stop the leakage should be taken immediately. 6. Note the actual cement construction in bags.
CHECK LIST FOR BLOCK/ BRICK/ STONE MASONARY Before Construction 1. Clean the area where Block Masonry/ Brick Masonry/Stone Masonry is to be constructed. 2. Calculate the quantity of the masonry and define the material requirement such as cement, sand, bricks/ blocks/ stones etc. Place the material at proper locations. 3. Sufficient hacking is to be done to the concrete surfaces. 4. Check the cement mortar proportion and prepare the mix using measuring boxes only in mortar tray or a proper platform. Keep check on the water cement ratio. Also make sure that the mortar quantity is not more of 1 bag of cement at a time. 5. Provide H Frame/ Pipe/ Tripod scaffolding wherever needed and make sure that the scaffolding is strong enough. Try to minimise the supports through the masonry. 6. The sand used should be clean, screened sand to be used for half brick masonry. During Construction 1. Line, level and plumb of the masonry should be constantly checked for each layer. 2. The thickness of joint should be as specified (normally it is 10mm) and it should be uniform throughout the construction. 3. All joints should be racked upto 8 to 10mm from the surface of the masonry after laying of the brick/ block/ stone to avoid racking at the time of plaster and also the mortar stuck on the brick/ block/ stone surfaces should be cleaned. 4. The joints in brick/ block masonry should be staggered and for stone masonry a header stone should be provided in every layer and staggered at 1 to 1.5m distance from both sides.
5.
For half brick thick masonry a RCC bond of 3” to 4” (patli) should be provided at every 0.9 to 1m interval. In normal case the reinforcement provided is 2 nos. of 6mm dia. rods.
6. Check the diagonal of the door and window frame, which is to be fixed. Place the frame in position and plumb should be checked from inside and outer face of the frame. Also check on which face of the wall the frame has to be fixed. 7. Fix the jambs in M15 concrete if the frame has to be fixed in masonry and in case of column the jambs should be fixed with help of screws. After Construction 1. Clean all the mortar on the floor especially the area where the mortar is mixed. This will help to avoid cleaning at the time of flooring. 2. Check the actual consumption of cement.
CHECK LIST FOR PLASTERING
•
Prior to first coat of plaster:
1. The masonry to be plastered shall be kept wet from one day before the plastering day. 2. Calculate the quantity of plaster and stack the required material is stacked at proper location. 3. Erect scaffolding wherever necessary and make sure that it is strong enough to take the load. 4. All repairs, gap filling, hacking and chiseling of projections for masonry and concrete surfaces should be completed before starting of plaster.
5. 6. 7.
Fixing of chicken mesh, charpatti wherever required shall be completed a day before plaster. Make level dots of required plastering thickness with help of line dori and plumb. Mortar should be measured with measuring boxes (pharmas) and shall be mixed in a mortar tray. Water cement ratio shall be strictly monitored.
8. If any bonding agent/ waterproofing compound is specified, check the required stock for its use according to instruction given by the manufacturer.
•
First Coat of Plastering:
1. Make sure that the mortar is being used within reasonable time limit after wet mixing. 2. Clean the floor after the plaster and all the wet mortar should be removed and reused.
• 1.
Second coat plastering: Make thiyyas of required plastering thickness with help of line dori and plumb.
2. Check mortar proportion using measuring box & mixing on steel plate platform. 3. Make sure that the mortar is being used within 30 minutes of adding water and with waterproof compound. 4. Check plumb of D/W frames, round edges of D/W jambs. 5. Give texture finish with sponge or smooth trowel as applicable including grooves etc. 6. Clean of D/W frames, chajjas etc. after day's work and remove all the mortar from it. 7. Note the actual cement consumption.
CHECKLIST FOR TILING • Before tiling.
1. Clean the flooring area from dust, loose/ set mortar etc.
2.
Mark the flooring level on the wall with tube level and line dori. The marking should be at least 30cm above the floor level.
3. Check datum level marking and slope to be given. 4. Ensure that the conduits for concealed electrical/ plumbing are laid wherever necessary. 5. The mortar should be mixed by using measuring box. 6. Make level spots with mortar. 7. Check soaking of tiles, if required. •
1.
During tiling: Use line dori for fixing of the tiles in line.
2. Check levels, Drops, slope (if required) 3. Fill the Joins filling with cement slurry or appropriate coloured cement. 4. Level the mortar below the tile to avoid hollowness. 5. Check breakage. 6. Clean the tiles after 12 hours of fixing.
