硅酸盐通报2017，Vol.36Issue(12)：4033-4037,4043,6.
改性磷石膏对石膏矿渣水泥水化过程的影响研究
Effect of Modified Phosphogypsum on the Hydration Process of Gypsum Slag Cement
权娟娟 1张凯峰 2王可娜1
作者信息
- 1. 西京学院土木工程学院,西安 710123
- 2. 中建西部建设北方有限公司,西安 710116
- 折叠
摘要
Abstract
Gypsum slag cement was produced by mixing modified phosphogypsum ( 5％-25％ in mass ) , Portland cement clinker (15％in mass)and slag(60％-80％in mass).The compressive strength, heat of hydration , pH value of pore solution and hydration products of the gypsum slag cement were investigated .The results show that the compressive strength of the gypsum slag cement at 3 d and 7 d decreased with the incorporation of phosphogypsum .When the content of phosphogypsum reached 10％and 15％, the compressive strength at 28 d and 90 d surpass that of the ordinary portland cement .The pH value of the pore solution increased with the increase of age from 3 d to 90 d.At the same age , the pH value of the pore solution decreased , the occurring time of the exothermic peak increases , with the increase of phosphogypsum .The hydration products at the age of 28 d are mainly ettringite and calcium silicate hydrate , and the amount of hydration products reach the most with 15％of phosphogypsum .关键词
石膏矿渣水泥/改性磷石膏/孔溶液/水化热/水化产物Key words
gypsum slag cement/modified phosphogypsum/pore solution/heat of hydration/hydration product分类
化学化工引用本文复制引用
权娟娟,张凯峰,王可娜..改性磷石膏对石膏矿渣水泥水化过程的影响研究[J].硅酸盐通报,2017,36(12):4033-4037,4043,6.
