SECTION B - Derry City Council
SECTION B - Derry City Council
SECTION B - Derry City Council
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APPENDIX 1/5: TESTING TO BE CARRIED OUT BY THE CONTRACTOR (CONTINUED)<br />
Clause Work, Goods or Materials Test Frequency of Testing Test Certificate Comments<br />
1702<br />
Water<br />
Tests specified in BS EN<br />
1704<br />
1008<br />
Monthly<br />
continu<br />
Chloride content<br />
Monthly<br />
ed<br />
Sulfate content<br />
Weekly<br />
Acid-soluble alkali<br />
content<br />
Admixtures Chloride content 1 per consignment Required<br />
(BS 934-2)<br />
Sulfate content<br />
Acid-soluble alkali<br />
content<br />
1 per consignment<br />
1 per consignment<br />
Required<br />
1707 Concrete Cube strength (N) Prestressed concretetwo<br />
cubes from 12 m³ or<br />
2 batches whichever<br />
represents the lesser<br />
volume<br />
Reinforced concrete –<br />
four cubes from 24 m³ or<br />
4 batches whichever<br />
represents the lesser<br />
volume but minimum of 4<br />
for every day concrete is<br />
delivered to site<br />
Mass concrete-two<br />
cubes from 50m³ or 50<br />
batches whichever<br />
represents the lesser<br />
volume<br />
Additional cubes for<br />
special purposes<br />
Required<br />
Contractor to cast and<br />
test sufficient additional<br />
cubes to demonstrate<br />
cube strength before<br />
transfer<br />
Cube strength-identity<br />
2 cubes from each of two<br />
testing as described in<br />
samples of each batch<br />
Appendix 17/4 (N)<br />
Density<br />
Modulus of elasticity<br />
Fresh concrete<br />
Consistence (slump or<br />
Each batch<br />
Required<br />
compacting factor or<br />
Vebe) (N)<br />
Air content<br />
Each batch<br />
Cement content<br />
Water/cement ratio<br />
1709 Silane Required for each<br />
delivery<br />
Refractive Index<br />
Three samples<br />
Certification that the<br />
silane complies with<br />
Clause 1709 is required<br />
Trial panels, where<br />
required in the Contract<br />
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