耐水型石膏基保温材料物理力学性能研究  

Study on the Physical and Mechanical Properties of Water Resistant Gypsum Base Insulation Materials

作　　者：康宝祥 张庆贺 杜东荣 贾汉清 马江 何梦迪 罗文斌 田力 KANG Bao-xiang;ZHANG Qing-he;DU Dong-rong;JIA Han-qing;MA Jiang;HE Meng-di;LUO Wen-bin;TIAN Li(School of Transportation Engineering,Xi'an Vocational University Of Automobile,Xi'an 710600,China;School of Architectural Engineering,Xuzhou College of Industrial Technology,Xuzhou 221000;Jihua 3513 Industrial Co.,Ltd.,Xi'an 710026,China;China Chemical Engineering Second Co nstruction Corporation,Taiyuan 030021,China;Shaanxi Construction Engineering Fifth Construction Group Co.,Ltd.,Xi'an 710000,China)

机构地区：[1]西安汽车职业大学交通运输工程学院,陕西西安710600 [2]徐州工业职业技术学院建筑工程学院,江苏徐州221000 [3]际华三五一三实业有限公司,陕西西安710026 [4]中化二建集团有限公司,山西太原030021 [5]陕西建工第五建设集团有限公司,陕西西安710000

出　　处：《中国非金属矿工业导刊》2025年第1期55-59,共5页China Non-Metallic Minerals industry

基　　金：陕西省教育厅2019年度一般专项科研计划项目“耐水型废石膏基轻质墙体保温材料应用研究”(编号:19JK0642)。

摘　　要：以磷石膏与普通硅酸盐水泥为主要胶凝材料,通过单因素试验法,分析了磷石膏、粉煤灰、生石灰的掺量和水胶比变化对石膏基胶凝材料物理力学性能的影响。试验结果表明,随着磷石膏掺量的提升,石膏基胶凝材料的强度下降,而软化系数和导热系数增加,磷石膏最佳掺量为60%;28d强度与软化系数随着粉煤灰掺量先增大后减小,导热系数随着粉煤灰掺量的增加缓慢减小,粉煤灰最佳掺量为25%;强度随着生石灰掺量先减小后增大再减小,软化系数与导热系数随着粉煤灰掺量的增加先增大后减小,生石灰最佳掺量为6%;强度随着水胶比的增加而降低,软化系数与导热系数随着水胶比的增大先增大后减小,最优水胶比范围宜为0.30~0.35。This paper takes the industrial by-product phosphogypsum as the main material,with ordinary Portland cement as the basic material,the effects of phosphogypsum,fly ash and quicklime content and water-glue ratio on the physical and mechanical properties of gypsum-based cementitious materials were analyzed by single factor test method.The test results show that the strength of gypsum base cementified material decreases with the increase of phosphogypsum content,the softening coefficient and thermal conductivity increase with the increase of phosphogypsum content,and the optimal content of phosphogypsum is 60%.The 28d strength and softening coefficient first increase and then decrease with the fly ash content,the thermal conductivity decreases slowly with the fly ash content increasing,and the optimal fly ash content is 25%.With the increase of fly ash content,the softening coefficient and thermal conductivity increase first and then decrease,and the optimal lime content is 6%.The strength decreases with the increase of water-binder ratio,and the softening coefficient and thermal conductivity increase first and then decrease with the increase of water-binder ratio.The optimal water-binder ratio range should be 0.30~0.35.

关 键 词：磷石膏 胶凝材料 掺合料 力学性能 

分 类 号：P619.261[天文地球—矿床学] TD876.1[天文地球—地质学]