Concrete base material applied to extremely cold environment

Abstract

The invention discloses a concrete base material applied to an extremely cold environment, and belongs to the field of building concrete. The concrete base material applied to the extremely cold environment comprises cement, machine-made sand, broken stone, a superplasticizer, mortar, hydrogel, common sand and an additive. In terms of single formula dosage, the concrete comprises the following amounts of components: 510-550kg of cement per cubic meter and 820-860kg of machine-made sand per cubic meter, the components of the concrete base material can be adjusted, and through the self-heating component added by the concrete, in the mixing process of the cement and other concrete base materials, heat release and expansion are achieved, and the concrete base material is internally filled withheat to be fluffy, so that the stirring speed of the concrete base material is increased, the mixing effect of the concrete base material is improved, the combination of the concrete base material and other building materials is enhanced, and meanwhile, the hardness of the formed concrete base material is improved.

Description

technical field [0001] The invention relates to the field of concrete for construction, and more specifically relates to a concrete base material used in extremely cold environments. Background technique [0002] Concrete refers to the artificial stone made of cement as the main cementitious material, mixed with water, sand, stones, chemical admixtures and mineral admixtures when necessary, mixed in appropriate proportions, uniformly stirred, compacted and cured. Concrete is mainly divided into two stages and states: the plastic state before setting and hardening, that is, fresh concrete or concrete mixture; the hard state after hardening, that is, hardened concrete or concrete. The strength grade of concrete is divided by the standard value of cubic compressive strength. The strength grade of ordinary concrete in China is divided into 14 grades: C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75 and C80 . [0003] In concrete, sand and stone act as the skelet...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned technical solution solves the problems of the amount of concrete cementitious material and long mixing time, when it is suitable for some areas in extremely cold environments, the low temperature will reduce the mixing efficiency of cement and other concrete base materials, causing the concrete base material to be mixed during the production process. It cannot be stirred and mixed normally, which reduces the hardness of the concrete after forming, and even makes the formed concrete unusable

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