It is a high-tech concrete composed of DSP material and fiber reinforced material. According to its composition and heat treatment, the compressive strength of the concrete can reach 200 MPa to 800 MPa, the tensile strength can reach 20 MPa to 50 MPa, the modulus of elasticity is 40 Gpa to 60 Gpa, the fracture toughness is as high as 40 000 J/m2, which is 250 times as high as that of ordinary concrete and can be comparable to that of metal aluminium, the chloride ion permeability is 1/25 of www.chuanganqii.cnwww.biansongqii.cnwww.baohuqi.net.cnwww.xiaoxieqi.net.cnwww.chuangan
qi.org.cnwww.bileiqi.org.cnhigh strength concrete, and the penetration resistance is very strong for 300 times of rapid freeze-thaw. After cycling, the specimens are not damaged and the durability factor is as high as 100%. The ratio of flexural strength to self-weight of the pre-stressed RPC beams is close to that of steel beams. The application of RPC in engineering structures can solve the shortcomings of high strength and high performance concrete such as low tensile strength, large brittleness, poor volume stability, etc. At the same time, it can also solve the problems of high investment, poor fire resistance and easy corrosion of steel structures.