建筑夹心墙复合保温浆料的试验研究

Study on Composite and Thermal Insulation Mortar Used In Architecture Interlayer Wall

目的研究建筑夹心墙用保温浆料,改善建筑夹心墙保温体系.方法以水泥等为无机胶结材料,改性处理的珍珠岩和EPS颗粒为轻骨料,加入预发泡的“膏状”泡沫,混合搅拌后,制成保温浆料.结果经过预处理的珍珠岩明显减少吸水能力,表面改性EPS颗粒能增强其与无机胶结材料的粘结能力,防止“分层”出现;掺入20%的粉煤灰降低成本,提高材料和易性;30%的泡沫的引入,降低了材料的密度,使导热系数达到0.061 W/(m.K).结论研制的保温浆料具有0.061 W/(m.K)导热系数,0.12 MPa粘结强度,提高了建筑墙体的整体保温效果.

The paper studies on how to improve the thermal insulation mortar of architecture interlayer wall. The new type of thermal insulation mortar is made up of cement and plaster as binder, modified EPS and expanded perlite as light aggregate, and foam which is foamed beforehand. The modified expanded perlite can reduce water absorption. The surface modified EPS can improve the felting with the binder while avoiding delamination. Adding 20 % flyash increases material workbility and reduces the cost. Adding 30 % foam can increase the thermal insulation effectually. The new thermal insulation mortar, having low heat transfer coefficient and felting well with the wall, increases the thermal insulation effect of the wall.