Glass pumice concrete and preparation method thereof

Abstract

The invention discloses glass pumice concrete and a preparation method thereof, and belongs to the technical field of building materials. The glass pumice concrete is light in weight, small in densityand high in strength. Compared with existing common concrete, the density is reduced by 20% or more in the same strength condition, and the requirements to the high-strength light concrete in the building field can be satisfied now. In addition, a heat conductivity coefficient of the provided glass pumice concrete is lower, and can reach 0.234 W / (mK) minimally, the heat conductivity coefficient is reduced by 50% or more compared with the heat conductivity coefficient of the common concrete. The glass pumice concrete has the good thermal insulation property.

Description

Technical field [0001] The invention relates to a glass light stone concrete and a preparation method thereof, and belongs to the technical field of building materials. Background technique [0002] Concrete refers to a general term for engineering composite materials in which aggregates are cemented into a whole by gel materials. The term concrete usually refers to the use of cement as cementing materials, sand and stone as aggregates, and water in a certain proportion. Cement concrete obtained by mixing, also called ordinary concrete, is widely used in civil engineering. [0003] Ordinary concrete has the defects of excessive weight and poor thermal insulation due to its high density and high thermal conductivity due to components such as sand and gravel. It is not suitable for the requirements of lightweight and high strength concrete in today's construction field. Therefore, the research on new concrete materials has always been a hot spot. [0004] Now, in view of the defects ...

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Problems solved by technology

[0004] Now, in view of the defects of ordinary concrete, many new concrete materials have been developed, such as ceramsite concrete, which can solve the problem of excessive weight of ordinary concrete, but it has the defect of low strength because of the component of ceramsite; such as wheat straw Concrete can also solve the problem of excessive weight of ordinary concrete, but it also has the defect of low strength due to the material

The above-mentioned new concrete still cannot meet the requirements for light weight and high strength in the construction field

[0005] Glass pumice is a kind of porous lightweight inorganic material formed by grinding various waste glass into powder, adding different additives, and foaming at high temperature. It is loose, porous, and water-retaining. It is often used in landscaping and water quality. However, it is not often considered as a material for concrete due to its defects of low output and complicated construction technology