粗粒度区间钢渣微粉提升商品混凝土的性能研究
Research on Performance Improvement of Commercial Concrete through Doping the Steel Slag Fine Powder of Coarse Particle Size Ran
关键词:
粗粒度区间;钢渣微粉;混凝土;力学性能;耐久性能
Key words:
Coarse particle size range; Steel slag fine powder; Concrete; Mechanical property; Durability
刊期:
2018 No.4
DOI:
文章编号:
1000-4637(2018)04-01-06
基金项目:
国家863计划项目(2015AA034701);国家自然科学基金(51202109);江苏高校优势学科建设工程资助项目(PAPD);国家“江苏先进生物与化学制造协同创新中心”资助;2015 全国建筑材料行业科技创新项目计划(2015-M3-2)。
作者:
臧 军1,沈晓冬1,王志学2,祖庆贺2
单位:
1.南京工业大学材料科学与工程学院,210009;2.徐州中联混凝土有限公司,221100
摘要
摘 要:将粒度区间为45~80μm的较粗钢渣应用于各强度等级商品混凝土中,通过优化混凝土材料体系的颗粒级配来提升混凝土的各项性能。实验结果表明:45~80μm钢渣在商品混凝土中以较低掺量取代水泥和粉煤灰后,混凝土的工作性能、力学性能及耐久性能都有一定幅度的提升。强度等级对颗粒级配优化提升商品混凝土的性能有一定的影响,在高强度等级混凝土中,较低的水胶比和胶砂比使得颗粒级配优化作用得到更为充分的体现。
Abstract: Through steel slag fine powder of coarse particle size range (45~80μm) doped in commercial concrete with different strength grades, by the means of the particle size distribution optimization of concrete material system, various properties of concrete are improved. The related results show that 45~80μm steel slag with low dosage to replace the cement and fly ash , the working performance, mechanical properties and durability of the concrete have improved to some extent. The strength grade of the concrete has influence on the improvement of commercial concrete through particle size distribution optimization. For high-strength concrete, under the condition of low water-binder ratio and binder-sand ratio, particle size distribution optimization make the enhancement of the concrete be more obvious.
结论
参考文献
引用本文
上一个: 不同激发剂对钢渣活性及水泥强度的影响
下一个: 无
相关文件