复合保温模板夹芯混凝土的界面粘结性能试验研究

Experimental Study on Interracial Bond Performance of Composite Insulation Formwork Sandwich-type Concrete

介绍了由玻璃纤维增强水泥单模板与保温材料叠合而成的复合保温模板,作为永久性建筑模板,浇筑混凝土后形成夹芯式复合剪力墙。此类剪力墙不仅具有自保温功能,还可以避免保温层直接接触明火从而降低火灾风险。通过采用不同保温材料、不同种类混凝土及不同材料界面连接方式的相互组合,对不同工况下夹芯式复合试件各界面的抗剪粘结性能及破坏模式进行了研究;对不同界面连接方式、不同保温材料和不同混凝土类型对试件整体抗剪性能的影响进行了对比分析,并提出了使用建议。

A kind of composite？insulation formwork superposed by glass fiber reinforced cement single tbrmwork and thermal insulation materials is introduced, as the permanent building formwork, which is poured with concrete to form a sandwich-type composite shearing wall. This kind of shearing walls not only have the function of self-insulation, but also make the insulation layer avoid direct contact with the open flame so as to reduce the risk of fire. According to the combi- nations of different insulation materials, different types of concrete and different materials interface connection ways, the shearing bond performance and failure modes of the interfaces between composite layers in different conditions are stud- ied, the impact on the shearing behavior of the specimens, which is resulted by the different insulation materials, different types of concrete and different interface connections, is contrasted and discussed, and then some recommendations are presented.