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SERIES 5700 CONCRETE REPAIRS - Standards for Highways
www.standardsforhighways.co.uk2 (02/20) The BS EN 1504 Part 3 class or classes of repair product required for the repair work shall be as specified in contract specific Appendix 57/1 for each structural element to be repaired. When no class is specified in contract specific Appendix 57/1, the required class shall be R4. 3 (02/20) Class R1 products shall not be permitted ...