ODM Polymer Concrete manhole Cover grating resistance to chemical attack light weight low cost high wear-resisting proper

                      ODM Polymer Concrete manhole Cover gratingresistance to chemical attacklight weightlow costhigh wear-resisting propertyproducts featuresEnvironment friendly1,resistance to chemical attack2,light weight3,low cost4,high wear-resisting property

Polymer resin concrete cover, in full accordance with the request of the customers, is prefabricated in workshops, which ensures the quality of products. By comparison with traditional cement concrete channel, it is made out of polymer resin concrete. Its chief raw materials are small stones and sands ,and auxiliary raw materials are unsaturated resin and solidifing materials. The polymer resin concrete cover has four characteristics. First, the producing method effectivly helps to reduce the cost. Second, it can’t be recycled, in other words, it won’t be stolen. Third, it is hard and durable, reducing the cost of replacing and maintaining. Fourth, polymer resin is harmless to human society and natural environment,so the cover is green product.Raw materials of polymer resin concrete covers

Detection data of polymer resin concrete covers

Detection name Results bending, vibration and fatigue tests Stress 57%, after more than 200 times, no apparent difference hoisting test bending stress 60Kg/cm2 , keep for 5 months, no apparent difference freezing and unfreezing test(bending) from -17.70C to 14.40C, after more than 400 times, no change; cement concrete: from -17.70C to 14.40C, after about 80 times, the elasticity is reduced to less than 1/2 resistance to corrosion PH 1 and 60°C for 10 years, no change cold-and-hot cycle test(bending) from -20°C to 60°C, after 60 cycles, no apparent difference

compare with traditional covers

iron cover steel fiber cover renewable resin cover polymer resin concrete cover pressure-resistant strong medium medium strong corrosion-resistant medium medium medium strong impact-resistant medium medium weak strong tensile medium weak strong strong bend medium weak strong strong heat-resistant strong strong weak strong