Foam concrete

Abstract

The invention discloses foam concrete which is prepared from the following raw materials in parts by mass: 200-300 parts of cement, 250-370 parts of ceramsite, 380-460 parts of sand, 3-6 parts of tensile fibers, 150-350 parts of water, 3.5-5.4 parts of a foaming agent and 4-7 parts of a water reducer. The foam concrete disclosed by the invention can be lighter in mass, higher in strength and highin hole forming quality, so that physical properties, for example, compressive strength, seepage resistance, sound isolation, heat isolation and the like, of the foam concrete are improved.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a foam concrete. Background technique [0002] The preparation of foam concrete is different from mixing ordinary concrete, it has a process of introducing foam. In order to better uniformly introduce the foam into the cement slurry and distribute it in the foam concrete system intact and evenly in this process, the cement slurry is required to have good fluidity. In order to accelerate the strength of concrete, the water-cement ratio is a necessary condition to ensure that the cement mortar has good fluidity. [0003] There are two production methods of foam concrete: wet mortar method and dry mortar method. The wet mortar method is usually to mix cement, sand, etc. into mortar at a concrete mixing station, and transport it to the construction site with a car-type mixer locomotive, and then add the foam made separately to the mortar, and the mixer will mix the foam and mortar...

AI Technical Summary

Problems solved by technology

[0004] Due to the low consistency of this foam concrete, its viscosity cannot overcome the surface expansion force of the foam. The diameter of the foam at different positions in the slurry increases to varying degrees with time, so that some of the foam diameters are too large. Moreover, the diameter of the foam is different, the foaming is unstable, and the foaming rate is reduced, which ultimately affects the physical properties of the foamed concrete such as compressive strength, impermeability, sound insulation, and heat insulation.

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