废弃聚苯乙烯泡沫(EPS)外墙外保温砂浆研究

Study on the Exterior Wall External Thermal Insulating Mortar Made from Waste Expanded Polystyrene(EPS)

通过改性,EPS表面由憎水性变为亲水性,能被新拌硅酸盐水泥浆体所润湿。以改性EPS为轻骨料,水泥为胶结材,辅以纤维和聚合物改性,可配制施工性、热工性、耐候性、抗裂性良好的保温砂浆。这种新型保温砂浆可用于外墙外保温,突破了传统保温砂浆只能作内保温的局限,已在建筑工程中大规模应用。

The surface of modified EPS can be changed from the character of water - repellent to hydrophilic, and be wetted by freshly mixed portland cement paste. A new thermal insulating mortar with good properties of workability, thermal insulation, climate - resisting and crack - resisting can be made modified EPS as light aggregate and cement as hinder, and modified with fiber and polymer. This new type of insulating mortar can be used as exterior wall thermal insulation, which breaks the limitation of traditional insulating mortar only as interior insulation. It has been widely used in civil engineering.