摘要
在普通混凝土抗冻性能的基础上,利用快速冻融法研究再生粗骨料品质和取代率(0%,50%和100%)对再生混凝土抗冻性能的影响.研究结果表明:普通混凝土的抗冻性能>高品质再生粗骨料混凝土>普通品质再生粗骨料混凝土,取代率为100%时,经250次冻融循环后,普通品质再生粗骨料混凝土的质量损失率达到5%,相对动弹性模量<60%.
On the basis of ordinary concrete frost resistance？ the paper makes a study on the utilization of rapid freeze-thaw method and quality of recycled coarse aggregate replacement rate （0% , 50% and 100%） effect of recycled concrete frost resistance. The results show that： the effect of ordinary concrete frost resistance is greater than that of high-quality recycled coarse aggregate concrete greater than that of normal quality recycled coarse aggregate concrete by replacing 100% when, after 250 freeze-thaw cycles,the general quality recycled coarse aggregate concrete mass loss rate reaches 5%？ relative dynamic elastic modulus of 〈 6 0 % .
出处
《青岛理工大学学报》
CAS
2016年第4期17-20,共4页
Journal of Qingdao University of Technology
关键词
混凝土
再生粗骨料
取代率
抗冻性
质量损失率
相对动弹性模量
concrete
recycled coarse aggregate
replacement rate
frost resistance
mass loss rate
relative dynamic elastic modulus
作者简介
曹剑（1970-）,男,山东青岛人.硕士,高级工程师,主要从事混凝土结构耐久性方面的研究.E-mail：cidzyjc@163.com
