Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

5.2 Tests During Construction
63
Quality Assurance Handbook for Rural Roads
TABLE 406.3: QUALITY CONTROL TESTS PRIOR TO CONSTRUCTION
Type of Test Frequency
1. Aggregate Impact Value Test (IS:2386 Part 4) One to two tests on representative sample from each
source identified by the Contractor, depending on
ariability.
2. Flakiness Index Test (IS:2386 Part 1) -do-
3. Water Absorption Test (IS:2386 Part 3) -do-
4. Soundness Test, if the water absorption exceeds 2% -do-
5. Grading Test (IS:2386 Part 1) -do-
6. Atterberg Limits of portion of aggregate passing -do-
425 micron sieve (IS:2720 Part 5)
7. Proctor Compaction Test (IS:2720 Part 7) -do-
(after replacing the aggregate fraction retained
on 22.4 mm sieve with material of 4.75 mm to
22.4 mm size) alongwith Dry Density-Moisture
Content Relationship
The quality control tests to be carried out during construction are indicated in Table 406.4.
Table 406.4: QUALITY CONTROL TESTS DURING CONSTRUCTION
Type of Test Frequency
1. Grading Test (IS:2386 Part 1) Atleast one test per day.
2. Aggregate impact value (IS:2386-Part 4) At random one test per km
3. Placement Moisture Content (IS:2720 Part 2) Atleast three tests per day.
4. Density of Compacted Layer (IS:2720 Part 28) -do-
5. Thickness of Compacted Layer At random
5.3 Quality Control Checks by AE/EE
The quality checks by AE/EE are indicated in Table 406.5.
TABLE 406.5: QUALITY CONTROL CHECKS BY AE/EE
Stage Test Frequency Designation of
Inspecting Officer
1. Top of the (i) Density of the (a) One test for every 500 m length or part AE
Finished WMM compacted layer there of for each layer
Layer (IS:2720 Part 28) (b) One test for every 1000 m length or part
thereof for each layer EE
(ii) Surface Regularity Random Checking EE
and Transverse
Profile