Finishing mucilage capable of forming thick coating on surface of EPS (Expandable Polystyrene) plate and preparation method of finishing mucilage

Abstract

The invention provides a finishing mucilage capable of forming a thick coating on the surface of an EPS (Expandable Polystyrene) plate and a preparation method of the finishing mucilage, belongs to building materials, and overcomes the defects that the conventional finishing mucilage is low in bonding strength, is easy to crack, cannot form a thick coating, and is difficult to meet the fire-proof requirement. The finishing mucilage is prepared by mixing limestone powder, ganister sand, cement, a PP (Propene Polymer) fiber, a wood fiber, a modifying agent, a water repellent and water. The finishing mucilage capable of forming the thick coating on the surface of the EPS (Expandable Polystyrene) plate and the preparation method of the finishing mucilage have the positive effects that the bonding tensile strength of a mucilage layer and a benzene adhesive plate exceeds 0.1 Mpa. The cost of the finishing mucilage is lowered by about one third. The expansion and contraction deformation of the finishing mucilage generated under the influence of external natural conditions can be better absorbed, and the temperature difference deformation stress is dispersed around uniformly, so that the generation of cracks is effectively prevented. The thicknesses of external thermal insulation protecting layers can respectively reach 13 mm, 18 mm, 23 mm, 28 mm and 33 mm through adjusting the formula and the construction process and the like.

Description

Technical field [0001] The invention belongs to the field of construction, and specifically relates to a surface protection material for an external wall thermal insulation board. Background technique [0002] In recent years, during the construction and use of the external wall of the building with EPS board as the external insulation layer, too many fires have occurred and caused significant economic losses. This has aroused widespread concern and high attention from all walks of life on the safety of wall insulation and fire protection. . The simultaneous development of building energy conservation and fire safety is the general trend of the development of building energy conservation, and it is also the fundamental requirement of implementing the national energy conservation and consumption reduction plan and paying attention to the safety of people's livelihood. Thickening the fire protection layer on the surface of the EPS board has been proposed as a reliable fire protect...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a plastering mortar capable of forming a thick coating on the surface of an EPS board and a preparation method thereof, which overcomes that the existing plastering mortar has low bonding strength, is easy to crack, cannot form a thick coating, and is difficult to meet fire protection requirements. lack of