聚苯颗粒轻质保温材料的防水性能研究
Wall Materials Innovation & Energy Saving in Buildings(2014)
Abstract
试验以聚苯颗粒为轻质骨料,掺加适量纤维和防水剂,制备聚苯颗粒轻质保温板.研究聚苯颗粒与水泥体积比和水灰比对聚苯乙烯保温板密度和力学性能的影响;分别采用苯丙乳液、乳化硬脂酸和乳化复合防水剂对聚苯乙烯保温板进行防水改性,研究其对复合保温板质量吸水率的影响,并探讨其相关作用机理.试验结果表明,聚苯颗粒与水泥最佳体积比为5∶1,最佳水灰比为0.45;乳化复合防水剂对试样防水效果最理想,当其用量为8%时,试样2h和24h质量吸水率分别为6.0%、8.1%.
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