轻质高强硫氧镁泡沫水泥的制备及性能研究

发布时间：2018-04-13 02:33

  本文选题：硫氧镁泡沫水泥 + 粉煤灰　； 参考：《新型建筑材料》2017年10期

【摘要】：以硫氧镁水泥和粉煤灰为原料,制备干密度等级A05~A08的硫氧镁泡沫水泥试件。探讨了粉煤灰掺量、试样干密度对抗压强度、吸水率、导热系数的影响。结果表明,粉煤灰掺量为40%时,可有效提高A05~A08级硫氧镁泡沫水泥的抗压强度,同时降低试件的吸水率和导热系数。扫描电镜显示,在硫氧镁泡沫水泥中添加粉煤灰并无新水化相形成,粉煤灰颗粒的微集料效应可使硫氧镁泡沫水泥的微观结构更加密实。
[Abstract]:Magnesium sulfide foam cement specimens with dry density grade A05~A08 were prepared from magnesium sulfide cement and fly ash.The effects of fly ash content and sample dry density on compressive strength, water absorption and thermal conductivity were discussed.The results show that the compressive strength of A05~A08 grade magnesium sulfide foam cement can be improved effectively when the content of fly ash is 40%, and the water absorption and thermal conductivity of the sample can be reduced at the same time.The SEM results show that there is no new hydration phase when fly ash is added into magnesium sulfide foam cement, and the microaggregate effect of fly ash particles can make the microstructure of magnesium sulfide foam cement more compact.
【作者单位】： 海南大学材料与化工学院;海南热带岛屿资源先进材料教育部重点实验室;
【基金】：“十二五”国家科技支撑计划项目(2012BAJ02B08-3) 科技部创新基金项目(14C26214602911) 海南省重大项目(ZDZX2013015)
【分类号】：TQ172.7
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本文编号：1742570