| 不同再生细骨料取代率混凝土的抗压及干燥收缩试验研究 |
| |
| 引用本文： | 郝彤,赵文兰.不同再生细骨料取代率混凝土的抗压及干燥收缩试验研究[J].新型建筑材料,2011,38(2). |
| |
| 作者姓名： | 郝彤 赵文兰 |
| |
| 作者单位： | 郑州大学,土木工程学院,河南,郑州,450002 |
| |
| 基金项目： | 河南省省级新型墙体材料专项基金 |
| |
| 摘 要： | 对不同再乍细骨料替代率混凝土的抗压性能和干燥收缩性能进行研究.结果表明,随着再生细骨料替代率的提高,再生混凝土呈脆性趋势发展,但当采用基于自由水灰比的配合比设计方法和二次搅拌工艺时,再生细骨料混凝土的强度基本与普通混凝土相近.再生混凝土的收缩机理与普通混凝土基本相同,再生细骨料混凝土的收缩值随龄期增长而逐渐增大;再生混凝土的干燥收缩率大于普通混凝土;随着再生细骨料替代率的增加,再生混凝土收缩率随之增大.
|
| 关 键 词： | 再生细骨料 取代率 再生混凝土 抗压强度 干燥收缩 |
Both compressive test and drying shrinkage test on recycled aggregate concrete with different fine recycled aggregate replacement ratio |
| |
| HAO Tong,ZHAO Wenlan.Both compressive test and drying shrinkage test on recycled aggregate concrete with different fine recycled aggregate replacement ratio[J].New Building Materials,2011,38(2). |
| |
| Authors: | HAO Tong ZHAO Wenlan |
| |
| Affiliation: | HAO Tong,ZHAO Wenlan(School of Civil Engineering,Zhengzhou University,Zhengzhou 450002,Henan,China) |
| |
| Abstract: | Both compressive test and drying shrinkage test on recycled aggregate concrete with different fine recycled aggregate replacement ratio were studied.The results show that with the replacement ratio increase,recycled concrete are becoming more and more brittle;with the mixing proportion design of free W/C and the secondary mixing process,compressive intensity of recycled concrete is nearly comparable with those of normal concrete with similar composition.The shrinkage theory of the recycled concrete is the s... |
| |
| Keywords: | fine recycled aggregate replacement ratio recycled aggregate concrete compressive intensity drying shrinkage |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
