The impermeability of different types of self-adhesive polymer modified bitumen waterproofing membrane lap joints and T-shaped lap joints is investigated,and the effects of bitumen waterproofing coating treatment process,corner treatment process and double-sided self-adhesive waterproofing membrane treatment process on the impermeability of T-shaped lap joints are discussed as well.Results show that the impermeability of the lap joints of self-adhesive waterproofing membranes meets the requirements of standard GB 55030-2022;the untreated T-shaped lap joints have poor impermeability in a normal temperature environment;after corner plastering treatment,the impermeability of the T-shaped lap joints meet the requirements of GB 55030-2022.It is recommended to use bitumen waterproofing coating to treat the T-shaped lap joints for self-adhesive waterproofing membranes without reinforcement,and double-sided self-adhesive waterproofing membrane treatment process is not recommended.
关键词
自粘聚合物改性沥青防水卷材/T型搭接缝/不透水性/接缝处理工艺
Key words
self-adhesive polymer modified bitumen waterproofing membrane/T-shaped lap joints/impermeability/joint treatment process
维普
万方数据