OEM полимербетона крышка колодца EN 124

OEM Polymer Concrete pit Cover EN 124 resistance to chemical attack light weight low cost high wear-resisting property products features Environment friendly 1,resistance to chemical attack 2,light weight 3,low cost 4,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 coversDetection nameResultsbending, vibration and fatigue testsStress 57%, after more than 200 times, no apparent differencehoisting testbending stress 60Kg/cm2 , keep for 5 months, no apparent differencefreezing 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 1/2resistance to corrosionPH 1 and 60°C for 10 years, no changecold-and-hot cycle test(bending)from -20°C to 60°C, after 60 cycles, no apparent differencecompare with traditional coversiron coversteel fiber coverrenewable resin coverpolymer resin concrete coverpressure-resistantstrongmediummediumstrongcorrosion-resistantmediummediummediumstrongimpact-resistantmediummediumweakstrongtensilemediumweakstrongstrongbendmediumweakstrongstrongheat-resistantstrongstrongweakstrong