硅酸盐通报2024，Vol.43Issue(5)：1840-1849,10.
轻质漂珠对HPMC/水泥基复合多孔保温材料性能的影响
Effects of Lightweight FACs on Properties of HPMC/Cement-Based Composite Porous Thermal Insulation Materials
摘要
Abstract
In order to obtain hydroxypropyl methyl cellulose(HPMC)/cement-based composite porous thermal insulation materials with good performance,the effects of different amounts of fly ash cenospheres(FACs)on the mechanical properties,thermal conductivity,dry density and water absorption of HPMC/cement-based composite porous thermal insulation materials were studied.At the same time,SEM,XRD and image analysis software were used to characterize the pore structure characteristics of composites.The results show that with the increase of FACs content,the thermal conductivity decreases first and then increases,and the compressive strength increases first and then decreases.When the FACs content is 9.0％(mass fraction),the thermal conductivity of composites is the smallest,which is 0.094 W/(m·K).Under this blending ratio,the 28 d compressive strength is 1.58 MPa,and the dry density is 418.9 kg/m3.When the FACs content is 18.0％,the compressive strength of composites is the best,the 28 d compressive strength is 2.15 MPa,the thermal conductivity is 0.101 W/(m·K),and the dry density is 431.0 kg/m3.With the increase of FACs content,the proportion of pores less than 300 μm in composites increases gradually,and the average pore size shows a decreasing trend.关键词
漂珠/泡沫混凝土/抗压强度/导热系数/吸水率/孔结构Key words
fly ash cenosphere/foam concrete/compressive strength/thermal conductivity/water absorption/pore structure分类
建筑与水利引用本文复制引用
王建龙,马兵,安巧霞,杜轶赟,肖涛,陈琨..轻质漂珠对HPMC/水泥基复合多孔保温材料性能的影响[J].硅酸盐通报,2024,43(5):1840-1849,10.基金项目
新疆生产建设兵团科技攻关项目(2019DB009) （2019DB009）
新疆塔建三五九建工有限责任公司横向项目(SWJ2022KT21) （SWJ2022KT21）
