20mm Fiber Concrete Cover blocks: Strength :More than 60Mpa Fire Resistance :IS 456:200 Permeability :low Compatibility :Excellent Easy Identification :Marked Size each block We are offering Cover Blocks, Astra Concrete Spacers. Astra Concrete Spacers are made from High Strength, Fibre Reinforced Concrete in a factory with a strict quality control. The compressive strength of these concrete spacers is not less than 60 MPa. The breaking loads of Astra Concrete Spacers exceed stipulation made in DBV Merkblatt Abstandhalter (L2)fassung von Juli2002 Astra Concrete Spacers confirm to BS standard H BS:7973-1:2001 Astra assures best value for money. Best quality at the most economical prices. Products Details : Advantages of Concrete Spacers Concrete Spacers prevent rebars from corrosion, protect them from fire to certain length of time and help to provide proper transfer of stresses from concrete to steel rebars,by helping provide proper cover to rebars. Why Concrete Spacers? Alternatives to concrete spacers are PVC/plastic spacers. As plastic is a different material than concrete and has different coefficient of thermal expansion than concrete it does not bond properly with concrete. It is observed that hair cracks are developed between plastic and concrete surface, which allow ingress of corrosive gases, which in turn accelerates the corrosion. It is found in studies conducted by Norwegian Transport Authorities, that at many a places, especially in bridges and jetties, corrosion was initiated at the locations of plastic spacers provided. While concrete spacers are made from high strength concrete, these concrete spacers bond perfectly with the surrounding concrete.
Item code: ASTRA
Production Capacity : 1lack
Delivery Time : 1week
Packaging Details : Plastic Bag, 500 or 1000 numbers per bag