A kind of impervious and crack-resistant concrete

Abstract

The invention discloses an anti-seepage and anti-crack concrete, which comprises the following components in parts by weight: 180-280 parts of cement, 50-70 parts of mineral powder, 50-80 parts of fly ash, 920-980 parts of stones, debris 700-750 parts, 100-200 parts of sand, 170-200 parts of water, 0.5-0.9 parts of water reducing agent, 0.3-0.7 parts of air-entraining agent, 1-2 parts of polyacrylamide, 0.05-0.1 parts of sodium alkylbenzene sulfonate 0.2-0.4 parts of ethylene glycol, 0.05-0.1 parts of sodium carboxymethyl cellulose, 1.3-1.7 parts of industrial aluminum sulfate, 0.2-0.5 parts of high-strength imitation steel wire fibers, 0.01-0.04 parts of sodium lauryl sulfate, silicon 0.7-1.3 parts of ash, 3.45-4.5 parts of anhydrite, 2.3-3 parts of sulphoaluminate clinker, 0.3-0.7 parts of active activator, 10-35 parts of polypropylene fiber, 18-42 parts of graphite particles, foaming agent 4.5‑7 servings. The invention has high shock resistance, crack resistance and seepage resistance, strong durability, and the functions of fire prevention, sound insulation and heat preservation.

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