Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

4. Surface Regularity
201
Quality Assurance Handbook for Rural Roads
The maximum allowable difference between the pavement surface and a 3 m straight edge/profile
plate shall not exceed 6 mm for the longitudinal profile/cross profile.
5. Acceptance Criteria for cracked concrete slabs (one panel):
(i) Slabs with cracks penetrating to more than half the depth of slab shall not be accepted.
(ii) For cracks with depth less than half the depth of slab, no single crack shall exceed 750 mm
length; cumulative length of such cracks in each slab shall not exceed 1250 mm.
6 Quality Control Tests
1501: Plain concrete pavement
6.1 Tests prior to construction
The Quality Control Tests to be carried out prior to construction are indicated in Table 1501.2
TABLE 1501.2: QUALITY CONTROL TESTS PRIOR TO CONSTRUCTION
S. No. Type of Test Frequency
1. Cement As in Table 800.13
2. Fine Aggregates As in Table 800.13
3. Coarse Aggregates As in Table 800.13
4. Water Once for each source, subsequently in case of
doubt.
5. Admixture
- Chemical (For workability) (IS:6925 & IS:9103) Manufacturer’s certificate before procurement
- Mineral (Flyash) (IS:3812) - do -
6. Dowel bars (Plain steel) IS:432 (Part I) Tests on 3 samples to determine yield strength
7. - Premoulded Joint Filler (IS:1838) or Manufacturer’s Certificate
- Joint Sealing Compound(IS:1834) -do-
8. Plant, equipment and tools As per contract
9. Concrete mix design for cement content, w/c ratio and To be approved by EE
dosage of plasticizers for the specified design strength.
10. Granular Sub base Table 401.2
11. Trial length To be approved by EE before regular work.
6.2 Tests during construction.
The tests required to be carried out during construction are indicated in Table 1501.3