Impermeable anti-cracking concrete

Abstract

The invention discloses an impermeable anti-cracking concrete which comprises the following components in parts by weight: 180-280 parts of cement, 50-70 parts of ore powder, 50-80 parts of fly ash, 920-980 parts of gravel, 700-750 parts of scrap, 100-200 parts of sand, 170-200 parts of water, 0.5-0.9 part of water reducing agent, 0.3-0.7 part of air entraining agent, 1-2 parts of polyacrylamide, 0.05-0.1 part of sodium alkyl benzene sulfonate, 0.2-0.4 part of ethylene glycol, 0.05-0.1 part of sodium carboxymethyl cellulose, 1.3-1.7 parts of commercial aluminum sulfate, 0.2-0.5 part of high-strength steel-wire-like fiber, 0.01-0.04 part of lauryl sodium sulfate, 0.7-1.3 parts of silica fume, 3.45-4.5 parts of anhydrite, 2.3-3 parts of sulfoaluminate clinker, 0.3-0.7 part of activator, 10-35 parts of hydrogen polypropylene fiber, 18-42 parts of graphite particle and 4.5-7 parts of foaming agent. The impermeable anti-cracking concrete has the advantages of high earthquake resistance, high shock resistance, high cracking resistance, high impermeability and high durability, and has the functions of fire resistance, sound insulation and thermal insulation.

Description

technical field [0001] The invention relates to the field of concrete, in particular to an anti-seepage and anti-crack concrete. Background technique [0002] In recent years, with the process of urbanization and the continuous acceleration of urban-rural integration, the role of concrete additives has become increasingly important. As we all know, cement concrete is one of the largest building materials today, and concrete is everywhere in our lives. Whether it is roads, bridges, buildings, ports, docks, dams, airports, or Antarctic research stations and ocean drilling platforms, people can touch it all the time, and scientists are still studying the use of cement concrete materials for the outer layer space. [0003] Ordinary concrete is an artificial stone made of cementitious materials, coarse and fine aggregates and water in an appropriate proportion, and then hardened. From the macroscopic inspection of the concrete section, the concrete is composed of aggregate par...

AI Technical Summary

Problems solved by technology

Since both the cement slurry body and the interface transition zone in concrete contain unevenly distributed, different types and quantities of solid phases, pores and microcracks, the concrete is susceptible to the influence of the external environment, resulting in the expansion of concrete microcracks and harmful substances. Intrusion causes concrete deterioration, reduces concrete durability, and affects the service life of concrete structures