Method for preparing water-resistant thermal insulation mortar from modified rubber particles

Abstract

The invention discloses a method for preparing water-resistant and heat-retaining mortar with modified rubber particles. The rubber particles are soaked in alkaline solution, rubbed, washed and filtered, and the hydrophobic surface layer is removed to present a rough surface, and then rinsed with clean water and dried. In a water bath environment, add the treated rubber particles and coupling modifier into a water bath container and stir, and obtain modified rubber particles after drying; weigh silica fume and anti-cracking waterproof agent, add water and stir evenly, then add water glass, Mix evenly; pour the prepared modified rubber particles into the above slurry and mix evenly for interface treatment, then cool the modified rubber particles that have been pretreated at the interface until half-dry, and set aside; mix cement, fly ash, After mixing sand, S75 grade mineral powder and modified rubber particles with interface pretreatment, stir in a concrete or mortar mixer; then add water, naphthalene-based high-efficiency water reducer and carboxymethyl cellulose and stir again to obtain Modified rubber particle water-resistant and thermal insulation mortar. The modified rubber particle mortar prepared by the invention has strong water resistance and thermal insulation.

Description

technical field [0001] The invention relates to a method for preparing water-resistant and heat-preserving mortar, in particular to a method for preparing water-resistant and heat-retaining mortar with modified rubber particles. Background technique [0002] Waste rubber is a kind of solid industrial waste. With the development of the rubber industry and the automobile industry, a large number of waste tires, rubber products and their scraps continue to increase. Because waste tires are difficult to degrade and flammable, they accumulate and occupy a large amount of land, which is easy to form safety hazards and cause serious environmental pollution. With the development of the automobile industry, the generation of waste tires is also increasing at a double-digit rate every year. In 2004, the production of waste tires in my country has exceeded 112 million, and it is expected to exceed 200 million by 2010. Waste tires have become a new source of solid pollution. These tir...

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Problems solved by technology

[0006] Many mines in my country are plagued by heat damage, and mine heat damage will eventually become the decisive factor restricting mine mining depth; the main causes of mine heat damage are, firstly, large mine mining depth (currently generally around -1000m) and high ground temperature ( 45-50 degrees), the second is that the high-power electromechanical equipment required for mine production has large heat release and difficult heat dissipation

The temperature of the mining face is even as high as 33-36 degrees, and the relative humidity is mostly about 80% to 90%. The relative humidity in the total return air duct and the return air shaft is close to 100%. Lose its thermal insulation performance quickly, therefore, the traditional mortar of the prior art endangers the health of the miners in the working environment of high temperature and high humidity, and affects the normal production of the mine

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