钢渣-粉煤灰泡沫混凝土耐火性能试验研究
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摘要
工业排放物用作掺合料加入泡沫混凝土中不仅节约资源,又可以改善泡沫混凝土的性能。通过试验研究了钢渣-粉煤灰泡沫混凝土的耐火性能,并对结果进行了分析。结果表明,粉煤灰含量和水泥含量对泡沫混凝土吸水率影响较大,粉煤灰含量和水灰比对泡沫混凝土耐火时间影响较大。同时,发现料浆在混合好静置17 min后与泡沫混合制得的混凝土性能较好。
Industrial emissions used as admixture in foam concrete not only save resources,but also improve the properties of foam concrete. In this paper,the fire resistance property of steel slag fly ash foamed concrete was studied through experiments and the results are analyzed. The results show that the content of fly ash and cement has an important impact on water absorption. Content of fly ash and water cement ratio has an important effect on foam concrete fire-proof time. The foam concrete made of slurry standing for 17 min and bubbles has better performance.
Industrial emissions used as admixture in foam concrete not only save resources,but also improve the properties of foam concrete. In this paper,the fire resistance property of steel slag fly ash foamed concrete was studied through experiments and the results are analyzed. The results show that the content of fly ash and cement has an important impact on water absorption. Content of fly ash and water cement ratio has an important effect on foam concrete fire-proof time. The foam concrete made of slurry standing for 17 min and bubbles has better performance.
引文
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[4] 贺婷,廖洪强,童震松,等.钢渣微粉对泡沫混凝土基本性能的影响[J].混凝土,2013(11):75-78.
[5] 黄丽娟.粉煤灰对水泥土抗压强度影响的正交试验研究[J].河南理工大学学报:自然科学版,2009,28(3):352-356.
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[8] 倘建丽,张凯峰,赵世冉,等.钢渣胶凝活性评价方法的研究进展[J].材料导报,2012(7):128-130.
[9] P·梅泰.混凝土的结构、性能与材料[M].祝永年,沈威,陈志源译.上海:同济大学出版社,1991.
[10] 张冠伦.混凝土外加剂原理与应用[M].北京:中国建筑工业出版社,1989.Experimental Study on Fire Resistance of Steel-Slag-Fly-Ash Foam Concrete (下转第12页)
[2] 李汉平.现浇泡沫混凝土在地铁隧道减荷中的应用[J].混凝土,2009(9):74-75.
[3] 于水军,余明高,谢锋承,等.无机发泡凝胶材料防止高冒区托顶煤自然火灾[J].中国矿业大学学报,2010,39(2):173-177.
[4] 贺婷,廖洪强,童震松,等.钢渣微粉对泡沫混凝土基本性能的影响[J].混凝土,2013(11):75-78.
[5] 黄丽娟.粉煤灰对水泥土抗压强度影响的正交试验研究[J].河南理工大学学报:自然科学版,2009,28(3):352-356.
[6] Ibrahim N M,Salehuddin S,Che Amat R,et al.Performance of Lightweight Foamed Concrete with Waste Clay Brick as Coarse Aggregate[J].APCBEE Procedia,2013(5):497-501.
[7] 李应权,朱立德,李菊丽,等.泡沫混凝土配合比的设计[J].徐州工程学院学报:自然科学版,2011(2):1-5.
[8] 倘建丽,张凯峰,赵世冉,等.钢渣胶凝活性评价方法的研究进展[J].材料导报,2012(7):128-130.
[9] P·梅泰.混凝土的结构、性能与材料[M].祝永年,沈威,陈志源译.上海:同济大学出版社,1991.
[10] 张冠伦.混凝土外加剂原理与应用[M].北京:中国建筑工业出版社,1989.Experimental Study on Fire Resistance of Steel-Slag-Fly-Ash Foam Concrete (下转第12页)