![]() ![]() The production test panels shall be marked cured cored and tested in compression in accordance with the appropriate parts of BS EN 12390. The abrasion resistance of the hardening compound shall comply to BS 784 1953, and the compressive strength not less that 70N/mm2 after 28 days, tested according to the BS EN 12390. References to compressive strength in any Specification, shall unless otherwise agreed, refer to compressive strength obtained from concrete cubes made, cured and tested in accordance with BS EN 12350 and BS EN 12390 as amended or replaced from time to time. ![]() General All concrete shall be sampled and tested in accordance with the requirements of BS EN 12350 and BS EN 12390 unless otherwise stated in this Specification or instructed by the Engineer. It shall not contain mica, shale, coal or other laminar, soft or porous materials unless the Contractor can show by tests on finished concrete as set out in BS EN 12390 that the presence of such materials does not adversely affect the properties of the concrete. ![]()
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