基于单因素分析玻化微珠保温砂浆的配合比研究

发布时间：2018-02-26 17:12

本文关键词： 玻化微珠保温砂浆单因素分析抗压强度干密度　出处：《材料导报》2014年S2期 　论文类型：期刊论文

【摘要】：为了实现水泥石灰基玻化微珠保温砂浆的配制要求,采用单因素分析了保温砂浆8种组分(粉煤灰、玻化微珠、憎水剂、胶粉、羟丙基甲基纤维素醚、聚丙烯纤维、石灰以及水泥)对其性能的影响,并最终得到最佳配合比。研究结果表明:粉煤灰等量取代水泥10%(质量分数,下同),玻化微珠容重110kg/m3时掺量41%左右,120kg/m3时掺量44.5%左右,憎水剂掺量0.1%,胶粉掺量1.8%~2.0%,羟丙基甲基纤维素醚掺量0.2%,聚丙烯纤维掺量0.4%,石灰掺量18.5%左右,水泥用量根据玻化微珠容重掺量在30%~37%,以此为参数设计配合比时,可使水泥石灰基玻化微珠保温砂浆得到最优的抗压强度和干密度数据,为进一步探索保温砂浆性能提供了理论依据。
[Abstract]:In order to meet the requirement of preparation of cement lime based vitrified microspheres, eight components (fly ash, vitrified microbeads, hydrophobic agent, rubber powder, hydroxypropyl methyl cellulose ether, polypropylene fiber) were analyzed by single factor analysis. The effect of lime and cement on its properties and the optimum mix ratio are obtained. The results show that the fly ash can replace the cement 1010g / m ~ 3 (mass fraction, the volume density of vitrified beads is 110kg / m ~ 3) and the content of fly ash is about 44.5% when the volume density of vitrified beads is about 120 kg / m ~ 3, and the content of fly ash is about 120 kg / m ~ 3. The amount of hydrophobic agent is 0.1, the amount of colloidal powder is 1.8 and 2.0, the amount of hydroxypropyl methyl cellulose ether is 0.2, the amount of polypropylene fiber is 0.4, the amount of lime is about 18.5%, and the amount of cement is about 30% according to the volume density of vitrified beads. The optimum compressive strength and dry density data can be obtained for the cement lime based vitrified microbead thermal insulation mortar, which provides a theoretical basis for further exploring the properties of the thermal insulation mortar.
【作者单位】：重庆大学材料科学与工程学院;
【分类号】：TU578.1;TU551

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