Formula and preparation process of anti-seismic high-strength anti-crack concrete

Abstract

The invention discloses an anti-seismic high-strength anti-crack concrete formula and a preparation process, and belongs to the technical field of anti-seismic concretes.The anti-seismic high-strength anti-crack concrete formula comprises the steps that S1, steel slag in filler particles is modified; s2, taking the filler particles according to the formula amount; s3, filling particle mixed materials; s4, the stones are washed after being sieved; and S5, mixing and preparing. According to the invention, the anti-shearing force capability of the concrete is enhanced and modified by the polyacrylonitrile filler fibers, and the polyacrylonitrile filler fibers have good dispersibility in cement, and have good chemical stability while resisting acid, alkali, hydrolysis and cracks, and the graphene particles can realize the modification of the temperature resistance capability. High dispersity and mixing capacity can be achieved through atomized and sprayed graphene particles and nano SiO2, the uniform scattering capacity after mixing is improved, meanwhile, the cross-linking capacity to cement and filler fibers is achieved through the micropore structure of the graphene particles and the nano SiO2, and the overall anti-seismic and anti-cracking capacity is improved.

Description

technical field [0001] The invention belongs to the technical field of anti-seismic concrete, and in particular relates to a formula and preparation process of anti-seismic high-strength crack-resistant concrete. Background technique [0002] Concrete refers to a building material that is mixed with cement, water, sand, and stones. Although concrete has a certain strength, concrete is widely used in construction, roads, and prefabricated parts. It can achieve good building strength and is the main building material. One of the civil engineering materials. [0003] Chinese patent document CN111253122A discloses a concrete formula, which includes the following components by weight: 129.5 to 140 parts of cement; 125.5 to 130 parts of ultrafine mineral admixtures; 80 parts of fly ash; 300 parts of yellow sand; ~585.5 parts; 1010~1017.5 parts of crushed stone; 7 parts of water reducer; In frequent areas, the strength of concrete often cannot meet the needs of high-strength crac...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that the strength of concrete cannot meet the needs of high-strength anti-cracking, after pouring concrete, it is easy to produce cracks due to the homogeneity of raw materials. Concrete cracks are the main factors affecting the seismic performance, so it is good The anti-crack performance is the main factor of anti-seismic concrete, and a formula and preparation process of anti-seismic high-strength anti-crack concrete are proposed