- 目录
- 新型墙体材料与施工
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固废基聚苯颗粒轻质保温墙体的制备及性能研究
作者：刘剑平，葛晓伟，刘朋，王禹升，刘栋，宋鸽
（沈阳工业大学 建筑与土木工程学院，辽宁 沈阳 110870）
摘要：以水泥20%、脱硫石膏40%、粉煤灰24%、矿渣6%、铁尾矿10%为胶凝体系，掺加聚苯颗粒及纤维素醚、乳胶粉、聚乙烯醇溶液等外加剂制备聚苯颗粒轻质保温墙体材料，研究了聚苯颗粒及外加剂对其抗压强度、体积密度、吸水率、软化系数和导热系数的影响，确定了制备工艺参数。试验确定的外加剂最佳配比为：聚苯颗粒体积掺量94%、纤维素醚0.4%、乳胶粉0.4%、聚乙烯醇溶液1%，原材料中固废掺量达80%，制备的聚苯颗粒轻质保温墙体抗压强度1.46 MPa、干密度560 kg/m3、导热系数0.132 W/（m·K）、吸水率17%，符合JG/T 266—2011《泡沫混凝土》中A06级的要求。
关键词：轻质保温墙体；聚苯颗粒；纤维素醚；乳胶粉；聚乙烯醇溶液
中图分类号：TU55+1.2 文献标识码：A 文章编号：1001-702X（2023）02-0105-05
Study on the preparation and performance of light thermal insulation wall with solid waste based polystyrene particles
LIU Jianping，GE Xiaowei，LIU Peng，WANG Yusheng，LIU Dong，SONG Ge
（School of Architecture and Civil Engineering，Shenyang University of Technology，Shenyang 110870，China）
Abstract：Lightweight thermal insulation wall materials were prepared by adding polystyrene particles，cellulose ether，latex powder，polyvinyl alcohol solution and other materials into the cementitions materials prepared with 20% of cement，40% of desulfurization gypsum，24% of fly ash，6% of slag and 10% of iron tailings were used as raw materials to replace cement. The effects of admixtures on compressive strength，bulk density，water absorption，softening coefficient and thermal cenductivity were discussed，and the process parameters were determined. The test determined that the volume content of polystyrene particles was 94%，cellulose ether 0.4%，latex powder 0.4%，polyvinyl alcohol solution 1%，and solid waste content was 80%. The lightweight thermal insulation wall made of polystyrene particles according to the best proportion of the test has a compressive strength of 1.46 MPa，a dry density of 560 kg/m3，a thermal conductivity of 0.132 W/（m·K），and a water absorption of 17%，which meets the requirements of A06 grade specified in JG/T 266—2011“Foam concrete”.
Key words：lightweight insulation wall，polyphenyl particles，cellulose ether，emulsion powder，polyvinyl alcohol solution