👉100 Quality Control Checks in Construction

🌟Stop costly mistakes before they happen!

A. General QA/QC & Documentation —

* 1. Approved drawings available at site
* 2. Latest revision of drawings verified
* 3. Approved specifications available
* 4. Method statement approved
* 5. Inspection & Test Plan (ITP) approved
* 6. Material approvals obtained
* 7. Material test certificates verified
* 8. Inspection requests properly raised
* 9. Quality records maintained
* 10. Non-conformance reports (NCRs) closed

B. Survey & Setting Out —

* 11. Benchmarks verified
* 12. Grid lines checked
* 13. Coordinates verified
* 14. Building alignment checked
* 15. Column locations checked
* 16. Levels verified
* 17. Foundation locations checked
* 18. Survey instruments calibrated
* 19. Verticality checked
* 20. As-built survey completed

C. Earthwork & Excavation —

* 21. Excavation dimensions checked
* 22. Excavation depth verified
* 23. Formation level checked
* 24. Soil condition inspected
* 25. Excavation bottom cleaned
* 26. Dewatering arrangement verified
* 27. Backfilling material approved
* 28. Backfill placed in controlled layers
* 29. Compaction checked
* 30. Field density tests completed

D. Reinforcement Steel —

* 31. Rebar grade verified
* 32. Rebar diameter checked
* 33. Mill certificates verified
* 34. Bar spacing checked
* 35. Bar quantity checked
* 36. Bar shape verified against BBS
* 37. Lap locations checked
* 38. Development/anchorage length checked
* 39. Concrete cover verified
* 40. Chairs and spacers provided
* 41. Reinforcement adequately tied
* 42. Starter bars correctly positioned
* 43. Embedded reinforcement checked
* 44. Rebar free from excessive rust, oil and contamination
* 45. BBS cross-checked with drawings

E. Formwork —

* 46. Formwork dimensions checked
* 47. Formwork line and level checked
* 48. Formwork verticality checked
* 49. Formwork adequately supported
* 50. Joints properly sealed
* 51. Formwork cleaned before concreting
* 52. Release agent properly applied
* 53. Openings and sleeves checked
* 54. Construction joints correctly located
* 55. Formwork inspection approved before concrete

F. Concrete —

* 56. Approved concrete mix design available
* 57. Concrete grade verified
* 58. Concrete delivery ticket checked
* 59. Batch time verified
* 60. Concrete temperature checked
* 61. Slump test conducted
* 62. Concrete sampling completed
* 63. Cube/cylinder specimens prepared as specified
* 64. Concrete placement sequence followed
* 65. Concrete properly compacted
* 66. Vibrator operation monitored
* 67. Cold joints prevented
* 68. Construction joints treated correctly
* 69. Concrete level checked
* 70. Finishing quality checked
* 71. Curing started at the appropriate time
* 72. Curing duration monitored
* 73. Concrete test results reviewed
* 74. Honeycombing/voids inspected
* 75. Defects repaired using approved procedure

G. Masonry & Blockwork —

* 76. Bricks/blocks approved
* 77. Dimensions checked
* 78. Mortar mix verified
* 79. Mortar consistency checked
* 80. Wall alignment checked
* 81. Wall verticality checked
* 82. Joint thickness checked
* 83. Proper bonding maintained
* 84. Openings and lintels checked
* 85. Curing completed properly

H. Plastering & Finishes —

* 86. Surface preparation checked
* 87. Plaster thickness verified
* 88. Plaster mix ratio checked
* 89. Surface level and alignment checked
* 90. Corners and edges checked
* 91. Tile alignment checked
* 92. Tile adhesive/mortar approved
* 93. Tile joints checked
* 94. Waterproofing system inspected
* 95. Waterproofing pond test completed

I. Final Quality & Handover —

* 96. Snag/punch list prepared
* 97. Defects rectified and re-inspected
* 98. Final dimensions verified
* 99. As-built drawings completed
* 100. Final QA/QC dossier and test records handed over

Key rule: No work should proceed to the next stage until the required inspection, testing and approval are completed.

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