Special cement-based self-leveling mortar for indoor floor heating and preparation method thereof

Abstract

The invention relates to special cement-based self-leveling mortar for indoor floor heating and a preparation method thereof. The special cement-based self-leveling mortar is prepared by mixing powder and water according to the mass ratio of 1:(0.22-0.25), wherein the powder is prepared from the following components in parts by weight: cement, anhydrite, alpha semi-hydrated gypsum, 40-70-mesh heat-conducting filler, 70-140-mesh heat-conducting filler, 200-mesh heat-conducting filler, 500-mesh heat-conducting filler, heat-conducting soft metal wires with the length of 6mm, redispersible rubber powder, cellulose ether and the like. The invention overcomes the defects that: cement-based self-leveling needs to be used for leveling when the existing indoor floor heating is laid, however, no cement-based self-leveling special for floor heating exists in the market at present, common cement-based self-leveling is mostly used, the heat conductivity coefficient is low, the heat conduction rate is slow, the heat loss amount is large and the like. The method is based on special cement and Portland cement which cooperate with the heat-conducting filler with higher heat conductivity coefficient, the heat-conducting soft metal wire and other preferable additives, so that the mortar has the advantages of high heat conductivity coefficient, high heat-conducting rate and low heat-conducting loss.

Description

technical field [0001] The invention relates to a special cement-based self-leveling mortar for indoor floor heating and a preparation method thereof, which is applied in the field of architectural paint production. Background technique [0002] In recent years, the demand for indoor floor heating has gradually increased. After floor heating is laid, cement-based self-leveling is generally used to level the surface of the floor heating, and then tiles or floors are laid on the leveling surface. However, there is currently no cement-based self-leveling for floor heating on the market. Common cement-based self-leveling is mostly used. The main components are Portland cement, sulphoaluminate cement, high-alumina cement, filler sand (natural or machine-made sand) ), filler calcium powder, redispersible rubber powder and various additives. The cement-based self-leveling uses cement as the cementitious material, filler sand (natural or machine-made sand) and filler calcium powder ...

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Problems solved by technology

[0004] In order to overcome the need to use cement-based self-leveling for leveling when laying existing indoor floor heating, however, there is no cement-based self-leveling for floor heating on the market, and ordinary cement-based self-leveling is often used, which has low thermal conductivity, slow thermal conductivity, and heat loss. The present invention provides a special cement-based self-leveling mortar for indoor floor heating and its preparation method. It is based on special cement and Portland cement, mixed with mineral powder, anhydrous gypsum, and α hemihydrate gypsum, and then added heat-conducting Thermally conductive fillers with high coefficients, thermally conductive soft metal wires and other preferred additives have the advantages of high thermal conductivity, fast thermal conductivity, low heat conduction loss, energy saving, environmental protection, and high efficiency

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