Self-cleaning light impermeable high toughness cement-based composite material

Abstract

The invention discloses a self-cleaning light impermeable high toughness cement-based composite material and belongs to the technical field of application of concrete. The composite material comprises raw materials and additives. The raw materials comprise cement, coal ash, water, refined sand and a water reducer; the additives comprise nano titanium dioxide, short fibers and EPS granules; the raw materials are the basic composition of the composite material and the additives are the functional composition of the composite material. The additives uniformly fill the raw materials. The density of the self-cleaning light impermeable high toughness cement-based composite material is just 70% of that of common concrete, so that the problem that the common concrete is overlarge in self-weight is solved; as the fibers are added, the resistance to tension of light concrete can be effectively improved, so that the stress property of the light concrete is improved. By adding the nano titanium dioxide, organic pollutants attached to the surface of the concrete are immediately degraded under the action of ultraviolet rays, and the degradation products can be scoured by rainwater, so that the surface of the concrete is kept clean.

Description

technical field [0001] The invention relates to a self-cleaning lightweight, anti-seepage and high-toughness cement-based composite material, which belongs to the technical field of concrete application. Background technique [0002] Concrete is widely used in construction projects because of its high compressive strength, easy materials, and simple production process. However, due to its low tensile strength, low toughness, heavy weight, and easy contamination with pollutants, it has not been able to meet the needs of people. requirements for building materials. [0003] With the development of the construction industry, people have new requirements for the performance of concrete, and corresponding research has been made. [0004] Fiber concrete is a general term for cement composite matrix materials made of concrete as the matrix and fiber as the reinforcing material. The mechanical properties of concrete can be improved by adding fibers. The team of Professor Victor L...

AI Technical Summary

Problems solved by technology

However, its self-weight is too large, which will cause the building mass to be too large in actual engineering, resulting in excessive load-bearing structures of the building.