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外加剂和粉煤灰对碱式硫酸镁水泥混凝土性能影响研究

陈文海 吴成友 蒋宁山 张慧芳 郑树海 陈方宇 余红发

硅酸盐通报2017,Vol.36Issue(6):1847-1851,1859,6.
硅酸盐通报2017,Vol.36Issue(6):1847-1851,1859,6.

外加剂和粉煤灰对碱式硫酸镁水泥混凝土性能影响研究

Influence of Admixture and Fly Ash on Performance of Basic Magnesium Sulfate Cement Concrete

陈文海 1吴成友 1蒋宁山 1张慧芳 2郑树海 1陈方宇 1余红发3

作者信息

  • 1. 青海大学土木工程学院,西宁 810016
  • 2. 中国科学院青海盐湖研究所,西宁 810008
  • 3. 南京航空航天大学土木工程系,南京 210016
  • 折叠

摘要

Abstract

Basic magnesium sulfate cement concrete were prepared by using basic Magnesium Sulfate cement with different dosages of admixture and fly ash.The effect of admixture and fly ash on the compressive strength of BMSC concrete and the resistance to sulfate corrosion were studied, and the phase composition and microstructure of BMSC concrete were also analyzed.The results show that after adding admixture the strength of the concrete was greatly enhanced.When the dosage of admixture is 0.5% of the quality of cement, the strength of the concrete reaches maximum value.Continue to increase the amount of admixture, the strength of concrete has little effect.The strength of concrete is decreased after adding fly ash.And when the water cement ratio is constant, the more fly ash content, the more unfavorable to the strength of concrete.After adding admixture and fly ash, the resistance to sulfate corrosion of concrete has been improved obviously.And under the same condition, the resistance to sulfate corrosion of the basic Magnesium Sulfate cement is better than that of ordinary portland cement concrete.

关键词

碱式硫酸镁水泥混凝土/外加剂/粉煤灰/抗硫酸盐腐蚀

Key words

basic magnesium sulfate cement concrete/admixture/fly ash/resistance to sulfate corrosion

分类

建筑与水利

引用本文复制引用

陈文海,吴成友,蒋宁山,张慧芳,郑树海,陈方宇,余红发..外加剂和粉煤灰对碱式硫酸镁水泥混凝土性能影响研究[J].硅酸盐通报,2017,36(6):1847-1851,1859,6.

基金项目

国家自然科学基金(U1407104,21401209,51662035) (U1407104,21401209,51662035)

教育部春晖计划项目(Z2015041) (Z2015041)

青海省自然科学基金项目(2015-ZJ-937Q,2015-ZJ-722,2015-ZJ-947Q) (2015-ZJ-937Q,2015-ZJ-722,2015-ZJ-947Q)

青海省高等学校地基与基础教研创新团队项目 ()

硅酸盐通报

OA北大核心CSCDCSTPCD

1001-1625

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