Anti-crack waterproof mass concrete and preparation method thereof

Abstract

The invention discloses anti-crack waterproof mass concrete and a preparation method thereof. The anti-crack waterproof mass concrete is prepared from the following raw materials in parts by weight: 1000 to 1300 parts of dolomite macadam coarse aggregate, 900 to 1100 parts of siliceous rock artificial sand fine aggregate, 150 to 250 parts of cement, 10 to 20 parts of admixture and 100 to 150 parts of water, the additive comprises zeolite, silane, cellulose ether and a complexing agent. The mass concrete provided by the invention not only can fundamentally solve the problem of mass concrete cracking caused by too high temperature due to hydration of a cementing material in the concrete, but also has the advantages of high strength, relatively strong durability, good impermeability and waterproofness and relatively low cost; the prepared mass concrete is suitable for high-rise building foundations, underground engineering, water conservancy dams and other projects, and can achieve long-term anti-cracking and waterproof effects.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a crack-resistant and waterproof large-volume concrete and a preparation method thereof. Background technique [0002] Mass concrete refers to the mass concrete whose minimum geometric dimension of the concrete structure is not less than 1m, or the concrete that is expected to cause harmful cracks due to the temperature change and shrinkage caused by the hydration of the cementitious material in the concrete, which is called mass concrete. concrete. Mass concrete is often involved in modern buildings, such as high-rise building foundations, large-scale equipment foundations, water conservancy dams, etc. Its main feature is its large size, and the size of any direction of the smallest section is at least 1m. The fundamental reason for the cracking of mass concrete is that the tensile stress in the concrete exceeds the tensile strength, and the performance of the concr...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the existing problems of cracking and poor waterproofing of large-volume concrete, and provides a crack-resistant and waterproof large-volume concrete and a preparation method thereof

The large-volume concrete provided by the invention can not only fundamentally solve the problem of cracking of the large-volume concrete due to the high temperature caused by the hydration of the cementitious material inside the concrete, but also has high strength, strong durability, good impermeability and water resistance, The advantage of lower cost; the prepared large-volume concrete is suitable for high-rise building foundations, underground works, water conservancy dams and other projects, and can achieve long-term crack resistance and waterproof effects

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