Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

3.2 Tests during construction
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Quality Assurance Handbook for Rural Roads
The Quality Control tests to be carried out during construction are indicated in Table 1000.5
TABLE 1000.5: QUALITY CONTROL TESTS DURING CONSTRUCTION
S. No. Test Frequency
1. Bending and placing of reinforcement (Clauses 1004, 1005 of
MoRD Specifications or IS:2502)
Daily/Regularly
2. Splicing and welding (Clause 1006 and 1007 of MoRD As and when such work is taken up
Specifications)
3. Tolerances (Spacing and cover) Before concreting
3.3 Quality Control Checks by AE / EE
The quality control checks to be carried out by AE / EE are indicated in Table 1000.6
Table 1000.6: QUALITY CONTROL CHECKS BY AE/EE
S. No. Test/Check Frequency
1. Quality of Steel if in doubt AE
2. Tolerances and General Workmanship of Fabrication AE
C. Do’s and Don’ts
Do’s Don’ts
1. Use new steel for works.
2. Use noncorrodible (material) devices for positioning
of reinforcements.
3. Get the welded lengths of reinforcement tested for
strength.
4. Adopt splicing of reinforcement at non critical
sections, the percentage not to exceed 33.
5. Protect reinforcement steel from rusting or chloride
contamination, by thorough cleaning using suitable
method before use.
6. Follow the working drawings and bar bending
schedules and match detailing and construction.
1. Do not use scaled of re-rolled steel in works.
2. Do not allow rough handling, dropping or shock
loading of reinforcement prior to embedment.
3. Do not tack weld cross bars for assembly of
reinforcement.
4. Do not weld reinforcement at site welding unless
adequate facilities, equipment etc to maintain quality
is attainable.
5. Do not prolong gap between assembling of
reinforcement and casting of concrete.
6. Do not heat the bars to facilitate straightening.
6. Do not rebend or straighten an already bent HYSD bar
to a dia less than 6 times the dia of bar.