非沥青基预铺防水卷材矿物料粘附性影响因素研究

Study on Influencing Factors of Mineral Adhesion of Non-asphalt Based Pre-laid Waterproofing Membrane

研究了矿物料种类、矿物料粒径、矿物料单位面积用量、热熔压敏胶层厚度和浸水处理等因素对非沥青基预铺防水卷材矿物料粘附性以及卷材与后浇混凝土剥离强度的影响。结果表明:矿物料为烧结砂,粒径为30~50目,单位面积用量为500~600 g,热熔压敏胶层厚度为0.3 mm时,制得的非沥青基预铺防水卷材可以获得良好的矿物料粘附性以及较高的卷材与后浇混凝土剥离强度;浸水处理后,卷材的矿物料粘附性相对浸水处理前均有所下降,但对卷材与后浇混凝土剥离强度的影响不大。

This paper studies the effects of mineral types,particle size,unit area dosage,hot melt pressure-sensitive adhesive layer thickness and immersion treatment on the adhesion of minerals to non-asphalt based pre-laid waterproofing membranes and the peel strength between the membranes and post-cast concrete.The results show that when sintered sand with a particle size of 30~50 mesh is selected as the surficial mineral,unit area dosage is 500~600 g,the hot melt pressure-sensitive adhesive layer thickness is 0.3 mm,the obtained non-asphalt based pre-laid waterproofing membrane can achieve good mineral adhesion and high peel strength between the membrane and post poured concrete;after immersion treatment,the mineral adhesion of the membrane decreased compared to that before immersion treatment,but the effect on the peel strength between the membrane and the post poured concrete is not significant.