A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses high-strength modified synthetic fiber reinforced pervious concrete. High-strength modified synthetic fibers are doped into the pervious concrete; the content of the high-strength modified synthetic fibers in the pervious concrete is 2kg/m < 3 >-120kg/m < 3 >, the high-strength modified synthetic fiber is obtained by modifying synthetic resin or synthetic fiber with a modifier, and the pervious concrete is concrete with a continuous void structure, which is formed by mutually bonding low-grade or stepless aggregate and a cement-based cementing material coated on the surface of the low-grade or stepless aggregate, and hydrating and hardening the low-grade or stepless aggregate. Polar groups such as Si, Si-O,-OH and-COOH are grafted to the surface of the synthetic fiber through the modifier, the groups act and react with a reinforcing material, a cementing material and an additive in the pervious concrete, and the strength and the dispersity of the fiber and the binding power of the fiber and the concrete are greatly improved.
本发明公开了一种高强度改性合成纤维增强的透水混凝土，透水混凝土中掺入了高强度改性合成纤维，高强度改性合成纤维在透水混凝土中的含量为2kg/m～120kg/m，高强度改性合成纤维由改性剂对合成树脂或合成纤维进行改性后得到，透水混凝土是由低级配或无级配骨料及其表面包裹的水泥基胶结料，相互粘结，并经水化硬化后形成的具有连续空隙结构的混凝土。由于改性剂将Si、Si‑O、‑OH、‑COOH等极性基团接枝到合成纤维的表面，这些基团与透水混凝土中的增强料、胶凝材料、外加剂发生作用和反应，因此极大提高了纤维的强度、分散和与混凝土的粘结力。
The invention discloses high-strength modified synthetic fiber reinforced pervious concrete. High-strength modified synthetic fibers are doped into the pervious concrete; the content of the high-strength modified synthetic fibers in the pervious concrete is 2kg/m < 3 >-120kg/m < 3 >, the high-strength modified synthetic fiber is obtained by modifying synthetic resin or synthetic fiber with a modifier, and the pervious concrete is concrete with a continuous void structure, which is formed by mutually bonding low-grade or stepless aggregate and a cement-based cementing material coated on the surface of the low-grade or stepless aggregate, and hydrating and hardening the low-grade or stepless aggregate. Polar groups such as Si, Si-O,-OH and-COOH are grafted to the surface of the synthetic fiber through the modifier, the groups act and react with a reinforcing material, a cementing material and an additive in the pervious concrete, and the strength and the dispersity of the fiber and the binding power of the fiber and the concrete are greatly improved.
本发明公开了一种高强度改性合成纤维增强的透水混凝土，透水混凝土中掺入了高强度改性合成纤维，高强度改性合成纤维在透水混凝土中的含量为2kg/m～120kg/m，高强度改性合成纤维由改性剂对合成树脂或合成纤维进行改性后得到，透水混凝土是由低级配或无级配骨料及其表面包裹的水泥基胶结料，相互粘结，并经水化硬化后形成的具有连续空隙结构的混凝土。由于改性剂将Si、Si‑O、‑OH、‑COOH等极性基团接枝到合成纤维的表面，这些基团与透水混凝土中的增强料、胶凝材料、外加剂发生作用和反应，因此极大提高了纤维的强度、分散和与混凝土的粘结力。
High-strength modified synthetic fiber reinforced pervious concrete and preparation method thereof
一种高强度改性合成纤维增强的透水混凝土及其制备方法
YIN SHI (author)
2020-06-12
Patent
Electronic Resource
Chinese
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