Insulation mortar dry powder for self-insulation masonry

Abstract

The invention relates to thermal mortar dry power materials for building self-insulation masonry. The thermal mortar dry power materials for building self-insulation masonry are prepared through the following raw materials, by weight, 25-55 parts of lightweight aggregate, 5-30 parts of thermal insulation materials, 3-10 parts of nanometer reinforcing agents, 30-60 parts of cement, 1-5 parts of fiber insulation materials, 0.2-10 parts of adhesion agents and 0.5-10 parts of re-dispersibility emulsion powder. The thermal mortar dry power materials are low in heat conductivity coefficient which is lower than 0.16 W / (m*k), the effect that mortar is matched with walling characteristics can be achieved, and the problems of energy loss and cracking caused by cold bridges and moisture condensation when existing aerated concrete blocks serve as a wall are solved. The thermal mortar dry power materials for building the self-insulation masonry can be identical to a building in service life, have the advantages of being free of toxicity and pollution, harmless to human bodies, wide in source of raw materials, low in manufacturing cost, easy and convenient to construction and the like, and are ideal wall masonry materials.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials for building walls, and relates to a dry thermal insulation mortar powder material for self-insulation masonry masonry. Background technique [0002] According to the requirements of the national energy-saving technology development plan, energy-saving buildings will become the development direction of the construction industry in the future. The problem of thermal insulation and energy saving of buildings is a comprehensive technical issue. To achieve building energy conservation, the energy-saving index of the building envelope must be improved. One of the keys is to reduce the thermal conductivity of the wall and greatly improve the thermal insulation performance of the masonry wall itself. , with the continuous deepening of building energy conservation, various new wall materials such as concrete hollow blocks, aerated concrete blocks, lightweight porous bricks, fly ash bl...

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Problems solved by technology

But at present, most of the masonry mortars matching the above self-insulation wall materials use ordinary masonry mortar to build self-insulation and energy-saving blocks. Because ordinary masonry mortar is generally cement mortar or polymer mortar, this type of mortar has a high density, generally 1600~1800kg / m3, high thermal conductivity, generally 0.8~1.0W / (m k), when used with self-insulation wall, due to the large gap in thermal conductivity between self-insulation and energy-saving blocks and ordinary masonry mortar , resulting in the phenomenon of "hot bridge" or "cold bridge" in the mortar joints of the masonry, and the loss of thermal insulation energy of the wall caused by this is about 25%. The overall insulation effect of the wall is affected, so that the building cannot meet the requirements of the national 65% energy-saving standard

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