硅酸盐学报2017，Vol.45Issue(5)：644-650,7.DOI:10.14062/j.issn.0454-5648.2017.05.07
熟料氧化镁含量对水泥浆水化与收缩的影响
Effect of Magnesia in Clinker on Shrinkage and Hydration of Cement Paste
摘要
Abstract
The impact of MgO contained in clinker on the shrinkage,hydration of cement was investigated.Alite polymorph and periclase relative contents in industrious clinker and hydrates of cement were determined by X-ray diffraction and derivative thermogravimetry.The mortar shrinkage was measured.The results show that periclase content increases with the increase of MgO content.Periclase hydrates at a higher rate at early age,and the increase of cured temperature accelerates the hydration rate.The expansion of periclase can decrease the shrinkage and increase the expansion of cement cured in dry environment and in water,respectively.The hydrate of periclase becomes amorphous or hexagonal plates,concentrates near-by Ca(OH)2,and carbonates with Ca(OH)2 to form CaMg(CO3)2.关键词
高镁熟料/方镁石/水化/收缩/碳化Key words
high magnesium clinker/periclase/hydration/shrinkage/carbonation分类
化学化工引用本文复制引用
宋强,张琼琼,徐德龙..熟料氧化镁含量对水泥浆水化与收缩的影响[J].硅酸盐学报,2017,45(5):644-650,7.基金项目
国家重点研发计划项目(2016YFB0303400) （2016YFB0303400）
国家重点基础研究发展(973)计划(2012CB723302). （973）
