Fiber reinforced concrete

Abstract

The invention provides fiber reinforced concrete. The fiber reinforced concrete comprises raw materials in a formula in percentage by weight as follows: 5%-15% of aggregate, 1%-5% of concrete, 1%-10%of steel fibers or carbon fibers, 5%-15% of an admixture, 3%-9% of polystyrene fibers, 2%-3% of cement, 1%-5% of sand, 11%-19% of stone, 5%-7% of fly ash, 3%-5% of water, 3%-5% of mineral powder, 3%-9% of polyacrylamide, 5%-18% of triisopropanolamine and 1%-6% of acrylic acid water reducing mother liquor. The fiber reinforced concrete prepared with a method has higher tensile strength, and fire-proof and explosion-proof properties are improved.

Description

Technical field [0001] The invention is a fiber concrete, which belongs to the field of building materials. Background technique [0002] Concrete is a general term for cement-based mixed materials made of concrete and other fiber materials. Because fiber concrete can well inhibit the development of cracks and improve the various properties of concrete, fiber concrete improves the stress of concrete The effective method of performance, but people have paid more attention to the reinforcement effect of single concrete for a long time. In fact, different types of fiber materials have different reinforcement effects on concrete; some can improve the initial cracking degree of concrete to prevent concrete cracking, and some can improve concrete The degree of participation after cracking limits the development of the crack width. Some have anti-explosion and fire-proof capabilities. According to the theory of fiber materials, different fiber materials can complement each other to prod...

AI Technical Summary

Problems solved by technology

[0002] Concrete is a general term for cement-based mixed materials made of concrete as the matrix and other fiber materials. Because fiber concrete can well inhibit the development of cracks and improve various properties of concrete, fiber concrete is a method for improving the stress of concrete. However, for a long time, people have paid more attention to the reinforcement effect of single concrete. In fact, different types of fiber materials have different reinforcement effects on concrete; some can improve the initial cracking degree of concrete to prevent concrete cracking, and some can improve concrete. The degree of participation after cracking limits the development of crack width, and some have anti-explosion and fire protection capabilities. According to the theory of fiber materials, different fiber materials can complement each other to produce a positive hybrid effect, which can achieve the effect of 1 plus 1 greater than two, resulting in New high-performance fiber materials with reliable performance and good economic and social benefits. The existing fiber concrete materials have low tensile strength, low flexural strength, poor impact resistance, and weak fire and explosion resistance. Therefore, we need to provide a New fiber-reinforced concrete material to improve the toughness of concrete