摘要
本文通过石灰和偏高岭土复掺方法对黄磷渣水泥进行改性研究,用混合正交试验方法研究不同掺量的偏高岭土和石灰复合对水泥性能的影响,结果表明:当黄磷渣掺量在30%时,偏高岭土与石灰复合改性对胶凝体系的早期力学性能有显著增强效果,同时缩短磷渣水泥的凝结时间,使其达到P·O42.5水泥的性能要求。利用30%磷渣、6%偏高岭土和2%石灰的最佳配比作为水泥混合材,改性后的磷渣水泥早期水化过程加快,减少Ca(OH)2量,提升其早期强度。
The method of lime and metakaolin mixed modification of phosphorus slag cement was studied. With the mixed orthogonal experiment method, the effect of different dosages of metakaolin and lime composite on the properties of cement was investigated. The results showed that when the phosphorus slag content is 30%, metakaolin and lime composite modification has significantly shortened the setting time of the gel system and enhanced the early mechanical properties of phosphorous slag cement. Using the optimum ratio of 30% phosphorus slag, 6% metakaolin and 2% lime as cement mixture, the early hydration process of the modified phosphorus slag cement was accelerated, reducing the amount of Ca(OH)2 and improving its early strength.
作者
包明
吴雄
杨文
赵日煦
Bao Ming;Wu Xiong;Yang Wen;Zhao Rixu(China Construction Ready Mixed Concrete Co., Ltd., Wuhan, Hubei, China)
出处
《矿产综合利用》
CAS
北大核心
2019年第4期122-125,97,共5页
Multipurpose Utilization of Mineral Resources
基金
掺合料对大体积混凝土水化温升的贡献研究(CSCECC-2017-07)
磷石膏在绿色建材中的综合利用技术(ZJXJ-2016-06)
关键词
黄磷渣
水泥
复合胶凝材料
正交设计
Yellow phosphorus slag
Cement
Composite cementing material
Orthogonal design
