Samples shall be taken on the basis of one for each 20 cubic meter of concrete placed or more often dependent on concrete grade and location as agreed. In any case not less than one sample per day or one sample for each pour of concrete placed shall be taken, whichever is the more frequent.All samples shall be taken in the presence of a representative from the contractor/consultant/client as applicable in accordance with the sampling procedures described in BS EN 12350-1:2000 (Testing fresh concrete).Samples of concrete shall be taken at the point of mixing or of deposition as instructed by the consultant.Sample shall be taken for each class of concrete in production at each plant for use for a project.All testing and sampling activities to be carried out at site/ in ITL by ITL representative or in presence of ITL representative. Approved materials shall not thereafter be altered or replaced by other materials without the consent of the consultant.Īll equipments used for testing and sampling shall be calibrated. No concrete shall be placed in the Permanent Works until the consultant has approved the materials of which it is composed. Equipment for Durability test and moisture contentįull details of all materials shall be submitted, which is proposed to use for making concrete.Concrete cube moulds for concrete sampling.ASTM C 94/BS 5328, Ready Mixed Concrete.BS EN 12350-6: 2000 Part 108 to Part 113 Part 124, Method for Determination of Density of Compacted Fresh Air Methods of Making & Curing Test Specimens Analysis of Hardened Concrete.BS EN 12350-2: 2000, Methods of Testing Fresh Concrete.BS EN 12350-1: 2000, Methods of Sampling Fresh Concrete.BS 1881Part 5, Methods of Testing Hardened Concrete for Other Than Strength.
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