再生混凝土抗冻耐久性试验研究  

Experimental research about the durability of concrete resist freeze

作　　者：苏晓宁[1] 

机构地区：[1]辽宁科技大学应用技术学院,辽宁鞍山114044

出　　处：《混凝土》2015年第10期149-150,共2页Concrete

摘　　要：对再生混凝土抗冻耐久性做了基础试验研究,再生混凝土的含再生粗骨料50%,试验通过对再生混凝土试件、添加2%LJ115液体防冻剂再生混凝土试件、普通混凝土试件做冻融循环试验,分析三种试件的失重率和动弹性模量。结果表明掺防冻剂的再生混凝土的抗冻耐久性有了较大提高。Basic experimental research in frost-resistant durability of recycled concrete was carried out. This test of freezing and thawing cycle were conducted to normal concrete specimens, recycled concrete specimens and include 2%LJ115 liquid anti-freezing mixture recycled concrete specimens respectively by quickly freezing method at（ 20 ± 2） ℃.On the basis of this, to the three kinds of specimens,we analysed the mass loss rate and the dynamic modulus of elasticity.The result indicates that the frost-resistant durability of include antifreeze recycled concrete had improved greatly, little better than the normal concrete.

关 键 词：抗冻耐久性 再生混凝土 动弹性模量 失重率 

分 类 号：TU528.01[建筑科学—建筑技术科学]