A kind of waterproofing agent for mortar concrete and preparation method thereof

Abstract

The invention relates to a waterproofing agent for mortar concrete in the field of building materials and a preparation method thereof. The waterproofing agent for mortar concrete is compounded by various inorganic and organic additives, and contains the following components accounting for the total weight of the waterproofing agent: 5-15% of the moisture-proofing agent, 50-60% of the inorganic waterproofing agent, and 50-60% of the inorganic water-repelling agent. Water agent 1-3%, anti-corrosion agent 1-2.5%, early strength agent 6-9%, surfactant 3-10%, superplasticizer 0.1-30%, dispersant 1-5%, thickener 0.1~1%. The waterproof agent integrates multiple waterproof and anti-seepage functions, with less dosage and excellent waterproof effect. Multiple functions such as hydration heat release, crack prevention, frost resistance, and bleeding reduction. The water repellent is a powder additive with simple production process, low cost, easy packaging and transportation, and can better solve the problems of inconvenient measurement during use. After testing, the performance indicators of the waterproofing agent have reached or exceeded the national building materials industry JC474‑2008 standard.

Description

Technical field [0001] The present invention relates to the field of building materials, and further, to a method for preparing a waterproofing agent in a mortar and concrete. Background technique [0002] From the conventional water repellent use may be divided into two categories: one is external waterproof membrane coated, coatings, sealants, and the second is incorporated into the mortar used in the emulsion, polymer, inorganic or organic Mixed material. The main problem facing the external coating waterproof material is easy to aging, life is short, there is scope limitations, can not be used as interior walls, floors and other impermeability. Mixed waterproofing agent can form a concrete and mortar organic whole, durable and low cost, easy construction, but the waterproofing agent market product specifications many, cohabitation, price differences, there are various defects in performance, greatly affect its waterproof construction development of the industry. In addition, ...

AI Technical Summary

Problems solved by technology

However, in the actual use of the currently commercially available composite mortar concrete waterproofing agent products, there are often problems such as low strength of the construction waterproof layer, long opening time, poor waterproof effect, and short life. In addition, there are toxic and harmful components used. For example, a waterproof additive for cement is mentioned in the Chinese patent application number 201410059359.6, and the sodium fluorosilicate used in it is a poisonous product among dangerous chemicals; Potassium dichromate used in the preparation method of high-efficiency composite mortar and concrete waterproofing agent with application number 201510338833.3 is a toxic and carcinogenic strong oxidant, which is classified as the first category by the International Agency for Research on Cancer carcinogen

These ingredients do not meet the increasingly stringent environmental protection requirements; at the same time, in the Chinese patent application number 201510963720.2, which focuses on non-toxic and environmental protection, an early-strength waterproofing agent for ordinary Portland cement is disclosed, but its corrosion resistance is not enough , the strength of time resistance needs to be improved

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