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目前用钢模现浇的混凝土结构及预制混凝土构件日益增多。由于使用小钢模,混凝土表面过于光滑,并粘有脱模剂。为能做到混凝土表面不凿毛而直接抹灰,我们试用了LA砂浆界面粘结剂。这种界面粘结剂由北京市建筑材料科学研究所研制,是以高聚物乳胶和Qa树脂为主加以少量其它助剂配制而成的粘性溶液。在研制单位配合下,我们制定了施工工艺,经过一年的考验,质量良好。一、施工工艺某工程室外装修为水刷石,室内为水泥砂浆或混合砂浆墙面。总面积达32000m~2。使用材料为325号普通(或矿渣)水泥、石灰膏、
At present, cast-in-place concrete structures and precast concrete components are increasingly used. Due to the use of small steel molds, the concrete surface is too smooth and has a release agent. In order to achieve direct plastering on the concrete surface, we tried the LA mortar interface adhesive. This kind of interface adhesive was developed by the Institute of Building Materials Science and Technology of Beijing. It is a viscous solution made of polymer latex and Qa resin with a small amount of other additives. In cooperation with the development unit, we have formulated the construction process. After one year of testing, the quality is good. First, the construction process The outdoor decoration of a project is water brush stone, indoor cement mortar or mixed mortar wall. The total area reaches 32000m~2. The material used is No. 325 ordinary (or slag) cement, lime paste,