中文摘要：

基于现浇磷石膏在住宅结构应用的研究现状及施工工艺,将磷石膏与磷渣粉、熟石灰和水泥混合成干物料,并掺入减水剂和缓凝剂加水搅拌,制作试件研究其抗压强度、放射性、凝结时间和含水率等基本性能。材料配合比9组,共制作27个立方体试件。抗压强度试验表明：现浇磷石膏墙体的抗压强度标准值在2.5-11.0 MPa之间,强度设计值可按0.478的标准值采用,完全可作框架填充墙及低层小开间住宅承重墙使用;另外,缓凝剂掺量对现浇磷石膏墙体抗压强度影响显著。基于推荐配合比的磷石膏试件的检测表明,现浇磷石膏墙体的初凝时间为45 min,终凝时间为55 min,能满足现场浇筑工艺要求;放射性检测结果符合国家标准对建筑主材放射性的要求;墙体5 d的含水率为2.6%,基本能达到干燥状态。

英文摘要：

It is described the research on cast-in-place phosphogypsum for residential structure and the summary of construction technology according to the engineering practice .Phosphogypsum , phosphorus slag power , slaked lime and cement are mixed into dry material , and then water reducing agent , retarder and water are added to stir , and 27 cube specimens considering 9 kinds of mixture ratio are made to test the compressive strength and radioactive and setting time and moisture content etc .The compressive strength tests show that the standard values of compressive strength of cast-in-place phosphogypsum wall are between 2.5-11.0 MPa, the strength design values can be 0.478 times of the standard values , and the phosphogypsum can be used for the filled walls of frame structure and the loadbearing walls of lower small bay residential houses .The volume of the retarder has an obvious effect on the compressive strength of cast-in-place phosphogypsum wall .The detection of the specimens show that the initial setting time and final setting time of cast-in-place phosphogypsum wall are respectively 45 min and 55 min, which can meet the requirements of on-site pouring process , and the results of radioactive test meet the technical requirements of the main material of building .The 5 d moisture content of wall was 2.6%, which can reach its dry state .