Foam concrete with large-dosage polystyrene particles and preparation method thereof

Abstract

The invention provides a foam concrete with large-dosage polystyrene particles and a preparation method thereof, which solve problems of water leakage and frost resistance of the foam concrete. The foam concrete comprises components in part as follows: 63-81 parts of ordinary portland cement, 63-81 parts of quick-hardening sulphoaluminate cement, 10-30 parts of coal ash, 0.5-1.3 parts of water reducing agent, 1-2 parts of accelerating agent, 0.6-1.2 parts of early strength agent, 1-2 parts of fiber, 2-4 parts of silica sol, and 50-70 parts of water. The percentage in volume (liter) of the polystyrene particles in added water is 200-400percent, and the percentage in volume (liter) of foam in the added water is 100-600percent. In the preparation process, the treated polystyrene particles stand for 10 min, and the foam can be added after standing uniformly-stirred cement slurry for 20 min. On the premise of ensuring the intensity, the foam cement disclosed by the invention has the advantages of higher heat preservation and heat-shielding performance, higher electric insulating performance, lower volume weight and lower water absorption. The problems of the water leakage and the frostresistance of the foam cement can be solved.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a light-weight, high-strength foamed concrete with good thermal insulation and fireproof performance and a preparation method thereof. Background technique [0002] With the vigorous development of the construction industry, the safety of building materials has also received increasing attention. The CCTV building fire in 2009, the Shanghai high-rise fire in 2010, and the Shenyang Wanxin fire on New Year's Eve in 2011 raised the fire prevention problem of high-rise buildings to the height of social problems. Building wall materials must not only have the effect of building energy saving, but also have excellent fire and flame retardant properties. At present, most of the building exterior wall insulation materials used in the market are organic materials such as benzene boards, but because this material is flammable and easily Aging and poor durability, fire accidents have ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a safe, durable, feasible Compulsory high-strength foam concrete wall material with low price-large-volume polystyrene particle foam concrete and preparation method

Images