Treating agent for inhibition of harm of montmorillonite clay to concrete and using method thereof

Abstract

The invention discloses a treating agent for inhibition of harm of montmorillonite clay to concrete and a using method thereof, and the treating agent belongs to the technical field of concrete additives, is used for inhibition of harm of the montmorillonite clay to concrete with a poly carboxylic acid doped water reducing agent, and solves the problem of complex technology, high cost, and bad effect of technological means in the prior art. The treating agent for inhibition of harm of montmorillonite clay to concrete comprises the following components by mass: 25%-35% of an intercalation adsorbent, 45%-55% of a dispersing agent and 10%-25% of a stabilizer. When in use, the dosage of the treating agent for inhibition of harm of montmorillonite clay to concrete is 0.01% to 0.03% of the dosage of a cementitious material in the concrete. The treating agent can effectively reduce the poly carboxylic acid doped water reducing agent adsorption of the montmorillonite clay, improves concrete performance, and has the advantages of simple preparation process, small dosage, and low cost of production and use.

Description

technical field [0001] The invention relates to the technical field of concrete additives, in particular to a treatment agent for inhibiting the harm of montmorillonite clay to concrete and a use method thereof. Background technique [0002] Modern concrete is a material system composed of cementitious materials, coarse aggregate, fine aggregate and water, and most of them are mixed with admixtures to achieve the required work performance and hardening performance. Among them, coarse and fine aggregates account for more than 70% of the concrete volume, which has an important impact on the performance of concrete. Coarse aggregates are generally collected from natural rocks or made by mechanical crushing, while fine aggregates are generally obtained from natural collections. During the crushing and collection of aggregates, some clayey fine particles (particle size range 2μm-75μm) may be mixed, which will have an adverse effect on the performance of concrete. [0003] Among...

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Problems solved by technology

[0006] The object of the present invention is to provide a treatment agent for suppressing the harm of montmorillonite clay to concrete and its use method, which is used to suppress the harm of montmorillonite clay to concrete mixed with polycarboxylate water reducing agent, and solve the problem of prior art. Problems of complex techniques, high cost and poor effect

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