文章基本信息

标题：Preparation and properties of waste-solid based foam concrete energy-saving materials
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作者：Jun Ji ; Xiaosheng Liu ; Shengying Tan 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：295
期号：4
页码：1-11
DOI：10.1088/1755-1315/295/4/042140
出版社：IOP Publishing
摘要：In this paper, foam concrete is prepared from industrial waste such as steel slag (SS), blast furnace slag (BFS), flue gas desulfurization (FGD). By studying the stability of foaming agent, the specific surface area of cementing material and curing temperature, the insulation performance of foamed concrete can be improved. The test results show that the HT composite foaming agent has good stability at a high temperature and can be used as a foaming agent for waste-solid based foam concrete. Increasing the specific surface area of the material and increasing the curing temperature of the material can reduce the thermal conductivity of foam concrete. The thermal conductivity of the cementitious materials prepared by the A350 and A500 two-layer cementitious materials at 70 °C are: 0.083 W/(m-k) and 0.078 W/(m-k), respectively, which all have a good heat preservation effect. As the coefficient gap between the two is not large. In order to reduce the energy consumption caused by grinding, the A350 material can be used for exterior wall insulation.