GBL concrete waterproof compacting agent

Abstract

The invention discloses a GBL concrete waterproof compacting agent. The compacting agent comprises, by weight, 10 to 17 parts of sodium silicate, 20 to 28 parts of aluminum potassium sulfate dodecahydrate, 1 to 4 parts of polyether, 0.05 to 0.5 part of a polyhydroxy compound, 1 to 6 parts of polyethylene glycol, 0.5 to 1.2 parts of n-butyl alcohol, 0.01 to 0.06 part of mineral fiber, 0.2 to 0.4 part of diethanol amine, 2 to 5 parts of lithium carbonate, 0.2 to 0.4 part of triethanolamine stearate, 0.05 to 0.1 part of a surfactant, 0.002 to 0.006 part of an NNO dispersing agent and 40 to 70 parts of water. The invention further discloses a preparation method of the compacting agent. The compacting agent can significantly improve the concrete anti-permeability, reduce the concrete shrinkage, prevent the concrete from cracking after hardening, and effectively prevent water molecule permeation, thereby improving the concrete strength and performance.

Description

technical field [0001] The invention relates to the technical field of building material additives, in particular to a GBL concrete waterproof compacting agent. Background technique [0002] In the existing concrete project, due to the large amount of work and the shortening of the project period, some penetrating cracks and cracks of different degrees appeared in the early stage of pouring completion. These early cracks lead to more serious cracking in the later stage. The durability of concrete is seriously damaged when the corrosion occurs. The formation of the above-mentioned defects is because during the hardening process of concrete, as the cement hydrates, the internal moisture is consumed by the hydration reaction, and a large number of connected capillary pores are formed at the aggregate-paste interface of hardened concrete; Concrete will shrink in volume, which will lead to cracking of concrete due to being restrained. Therefore, it is necessary to add a waterpr...

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Problems solved by technology

[0002] In the existing concrete project, due to the large amount of work and the shortening of the project period, some penetrating cracks and cracks of different degrees appeared in the early stage of pouring completion. These early cracks lead to more serious cracking in the later stage. The durability of concrete is seriously damaged by the erosion of

The formation of the above-mentioned defects is because during the hardening process of concrete, with the hydration of cement, the internal moisture is consumed by the hydration reaction, and a large number of connected capillary pores are formed at the aggregate-paste interface of hardened concrete; Concrete will shrink in volume, and the concrete will crack due to restraint

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