Sandwich heat preserving wall body and building method thereof

Abstract

The invention relates to sandwich heat-preservation wall and a construction method thereof. The heat-preservation wall consists of two layers of cavity wall which is brick-built by the internal and the external layers of masonry blocks; the heat-preservation layer is formed by insulation material by spot foaming. The insulation foaming material can be urea formaldehyde foaming material or polystyrene foaming material or urea nitrogen foaming material or polyurethane foaming material. The sandwich heat-preservation wall can improve wall heat-preservation performance, decrease production procedure, reduce production cost and waste, and meet the environment protection requirement for saving energy and reducing emissions.

Description

technical field [0001] The invention relates to heat preservation of external walls, in particular to a structure and a construction method of a sandwich heat preservation wall. Background technique [0002] In the prior art, the insulation material between the inner and outer two-layer leaf walls of the sandwich insulation wall is usually a prefabricated insulation board. When the wall is built on site, the insulation board is inserted into the cavity between the inner and outer two-layer leaf walls. Yes, first of all, the energy consumption of prefabricated thermal insulation materials in the factory not only does not comply with the national policy of energy conservation, emission reduction and environmental protection, but also there will inevitably be a lot of defective products in the production process, which will cause waste of materials. Secondly, insulation boards will inevitably appear during transportation. The breakage and breakage of the wall, again, the insula...

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Problems solved by technology

[0002] In the prior art, the insulation material between the inner and outer two-layer leaf walls of the sandwich insulation wall is usually a prefabricated insulation board. When the wall is built on site, the insulation board is inserted into the cavity between the inner and outer two-layer leaf walls. Yes, first of all, the energy consumption of prefabricated thermal insulation materials in the factory not only does not comply with the national policy of energy conservation, emission reduction and environmental protection, but also there will inevitably be a lot of defective products in the production process, which will cause waste of materials. Secondly, insulation boards will inevitably appear during transportation. The breakage and breakage of the wall, again, the insulation board inserted in the cavity of the two-layer wall generally cannot fill the cavity, and there are still air gaps, which reduces the thermal insulation performance

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