摘要
以磷建筑石膏、矿渣和水泥等为主要原料制备磷建筑石膏基砂浆,通过正交试验研究乙烯与乙酸乙烯共聚乳胶粉(EVA)、羟丙基甲基纤维素(HPMC)、聚丙烯酰胺(PAM)3种保水剂复配对磷建筑石膏基砂浆性能的影响。通过极差和方差分析关键影响因素及最优配合比,并探究其影响机理。结果表明:HPMC掺量是影响磷建筑石膏基砂浆流动度、保水率、拉伸粘结强度的主要因素;EVA掺量是影响磷建筑石膏基砂浆抗压、抗折强度的主要因素。最佳配合比为:EVA掺量0.15%、HPMC掺量0.25%、PAM掺量0.50%。
This article uses phosphorus building gypsum,slag,and cement as the main raw materials to prepare phosphorus building gypsum based mortar.The orthogonal test method is used to study the effect of three water retaining agents,namely ethylene and vinyl acetate copolymer latex powder(EVA),hydroxypropyl methyl cellulose(HPMC),and polyacrylamide(PAM),on the performance of phosphorus building gypsum based mortar.Analyze key influencing factors and optimal mix proportions through range and variance methods,and explore their influencing mechanisms.The results indicate that HPMC is a key factor affecting the flowability,water retention,and tensile bonding strength of phosphorus building gypsum based mortar;EVA is a key factor affecting the compressive and flexural strength of phosphorus building gypsum based mortar.The optimal mix ratio was determined to be 0.15%,0.25%,and 0.50%for EVA,HPMC,and PAM,respectively.
作者
王思骅
赵志曼
WANG Sihua;ZHAO Zhiman(Bijie Vocational and Technical College,Bijie 551700,China;Faculty of Architecture and Engineering,Kunming University of Science and Technology,Kunming 650500,China)
出处
《新型建筑材料》
2024年第3期20-23,共4页
New Building Materials
基金
毕科联合字zy〔2022〕4号。
关键词
磷建筑石膏基砂浆
保水剂
正交试验
极差法
方差法
phosphorus building gypsum based mortar
water retaining agent
orthogonal experiment
range method
variance method
