论文部分内容阅读
采用淤泥陶砂、废弃加气混凝土结合传热系数小的玻化微珠为砂浆骨料,基于“复合化”思想,制备自保温墙体配套砂浆。采用正交实验探讨混掺砂浆的合理配比,控制4项参数:胶凝材料用量、陶砂(或废料)与玻化微珠体积比、硅灰取代量和胶粉掺量,以干容重、抗压强度、导热系数为考核指标,制备综合利废效果最佳的新型混掺复合保温砂浆。结果表明,陶砂玻化微珠复合砂浆导热系数0.16～0.29W/(m.K),随着陶玻比增大而增大,因此陶砂体积含量增加有利于提高保温性能,加气废料玻化微珠复合砂浆的导热系数0.10～1.14W/(m.K),与陶砂复合保温砂浆相比,有较大的降低。
Adopting the silt sand, the abandoned aerated concrete combined with the glass beads with small heat transfer coefficient as the mortar aggregate, the self-insulation wall mortar is prepared based on the idea of “compounding”. Orthogonal experiment was used to explore the rationality of mixed mortar. Four parameters were controlled: the amount of cementitious material, the volume ratio of ceramic sand or glass beads, the replacement amount of silica fume and the content of cement powder, , Compressive strength, thermal conductivity for the assessment of indicators, the best preparation for the comprehensive utilization of waste mixed with a new type of mixed insulation mortar. The results show that the thermal conductivity of ceramsite vitrified composite mortar increases from 0.16 to 0.29 W / (mK) with the increase of pot-to-glass ratio. Therefore, the increase of volume of ceramsite helps to improve the thermal insulation properties. The thermal conductivity of the microbead composite mortar is 0.10 ~ 1.14W / (mK), which is greatly reduced compared with the ceramic sand thermal insulation mortar.