Unnatti Methodology and quality procedure.pdf

Gms cumulative weight retained gms passing actual

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Gms' % Cumulative weight retained Gms' % Passing Actual Permissible 20mm 95-100 10 mm 25-55 4.75 mm 0-10 2.36 mm f] Physical Inspection : ..................... i] Rounded. ...................................... ii] Flaky ........................................... iii] Containing organic matter .......... iv] Containing Dust/Powder. ............ Tested by : CONTRACTOR'S ENGINEER Remarks 1. Accepted .................................... 2. Acceptable subject to screening .............................. 3 Acceptable subject to washing ................................ 4. Rejected. ................................... Checked by: CLIENT/CONSULTANT
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UNNATTI CONSTRUCTIONS PVT. LTD . (ISO 9001:2000) 27 CONCRETE POUR CARD SL. NO. ................. DATE ..................... NAME OF CUSTOMER .............................. NAME OF WORK ............................... WORKSITE : ............... GRADE OF CONCRETE ............................... LOCATION OF CONCRETING ........................... REFERENCE DRAWING ............................... (WITH REV. NO.) SLUMP CEMENT RATIO ................................. INSPECTION ITEMS ................................. A) CEMENT B] SAND: C] METAL : Grade: Bulkage: Size/ Volume : Company : Silt Content: PPC/OPC/SRC : Volume: 1) CO-ORDINATES : 2) LEVEL : 3) SHUTTERING/CENTERING : 4) REINFORCEMENT STEEL : 5) INSERTS : 6) ANCHOR : 7) POCKETS/OPENING : 8) MEASUREMENT : 9) COVER TO REINFORCEMENT : 1) P.C.C. QUANTITY : 2) R.C.C. QUANTITY : 9) TIME OF COMMENCE EMENT : FROM : : TO: : 10) CEMENT CONSUMPTION : Estimated Actual BAGS : CUBE IDENTIFICATION NOS. : TEST REPORTS REF. : AUTHORISED TO POUR" ------------------------------- ---------------------------------- UNNATTI CONSTRUCTION CLIENT/CONSULTANT
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UNNATTI CONSTRUCTIONS PVT. LTD . (ISO 9001:2000) 28 CHECKLIST FOR CONCRETE 1 WATER : a] Clean & Potable Water source. b] Water supply for Mixer c] Curing arrangements with tap (nozzle) water supply. d] Curing Tank water supply. e] Water supply for laborers 2 CEMENT : a] Constant source & Grade b] Proper airtight storage godown with 2 doors. c] Proper storage of Mixer on Platform. d] Cement Bag weighing facilities. e] Calibration of weight balance (20+20+10 Kgs.) 3 FINE AGGREGATE : a] Constant source (check Sand Zone or FM) b] Washing facilities c] Screening facilities d] FA1 & FA2 separated by partition or separate bins. 4 COARSE AGGREGATE :
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UNNATTI CONSTRUCTIONS PVT. LTD . (ISO 9001:2000) 29 a] Constant source (ensure no Crusher Grit & Dust) b] CA1 & CA2 separate by partition or separate bins. 5. SAND BULKAGE TEST : a] Steel Measuring Box [Farma] watertight. b] Large [1.2 x 1.2 m] plastic sheet. c] Bucket of Water. d] Measuring Tape. e] Straight edge or ruler. 6. AGGREGATES BATCHING : a] Calibrated Weigh batcher with aggregates in bins b] Varying Measuring Boxes (Farmas] 12 Ns. c] Mixer Blackboard. 7. MIXER : a] Clean Hopper. b] Clean Drum c] Check Mixer Blades gaps [not greater than 30 mm] d] Check Hopper vibrator [adjust engine cum turn bcukle] e] Mixer calibrated tank. f] 2 x 200 litre drum full of water g] Tap supply under Mixer Operator's control h] 5 Litre "Bhisty" oil tin & 1 litre oil tin. i] Unloading Chute
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UNNATTI CONSTRUCTIONS PVT. LTD . (ISO 9001:2000) 30 j] Clean flat unloading steel platform or skip. 8. QUALITY CONTROL [QC] a] Lab Technician at Mixer point. b] Slump Cone with 16 mm dia. 600 mm long rod. c] 15 cm Cube Moulds, clean, all bolts - 6 Nos. 9 BUILDER'S HOIST : a] Braced with structure,. b] Skip Pit deep enough for 45 slope of mixer chute. c] Top pulley with extra tower frame for top 45 chute. d] Top platform for worker to tilt concrete skip.
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