菱镁矿粉对混凝土性能影响的试验研究

关键字：菱镁,矿粉,混凝土,性能,影响,试验,研究

（吉林建筑大学 材料科学与工程学院，吉林 长春  130118）

    摘要：在C30混凝土基准配合比的基础上，掺入占水泥质量1%～6%的菱镁矿粉，主要研究菱镁矿粉掺量对混凝土体积稳定性、耐久性和抗压强度的影响。结果表明，掺入菱镁矿粉后混凝土的各项性能均有不同程度的提高，其适宜掺量为占水泥质量的4%～5%，为提高混凝土体积稳定性和耐久性提供了一种新的技术措施。
    关键词：菱镁矿粉；碱-碳酸盐反应；体积稳定性；耐久性；抗压强度
    中图分类号：TU528.04        文献标识码：A        文章编号：1001-702X（2017）12-0045-03

Experimental study on the effect of magnesite powder on concrete performance
YU Wanzeng，ZHAO Haihan
（College of Materials Science and Engineering，Jilin Jianzhu University，Changchun 130118，China）

    Abstract：Based on the reference ratio of C30 concrete，magnesite powder with cement mass of 1%～6% was incorporated，and the influence of magnesite powder content on volume stability，durability and compressive strength of concrete was studied. The results showed that the properties of concrete with magnesite powder were improved in different degrees，and the suitable dosage is 4%～5% of the cement mass. A new technical measure was provided to improve the stability and durability of the concrete.
    Key words：magnesite powder，alkali-carbonate reaction，volume stability，durability，compressive strength