摘要
以市政道路破碎混凝土为再生粗骨料,以再生粗骨料、粉煤灰掺量、复掺粉煤灰和矿渣总量为影响因素配制再生骨料混凝土。在混凝土自生收缩试验的基础上,分析现有常用自生收缩预测模型与试验值的区别,选取欧洲规范BS EN模型作为基准模型,结合所研究的自生收缩试验结果提出修正参数,建立适用于再生骨料混凝土的自生收缩预测模型。
The recycled aggregate broken from municipal road was used to make recycled aggregate concrete. The mixing amount of recycled aggregate and mixing amount of fly ash and mixing amount of fly ash and slag was took as the influence factors. Based on the autogenous shrinkage test of deferent concrete,analyzing and comparing several commonly used autogenous shrinkage calculation model with experimental values of this paper,selecting a more appropriate one as reference. Inheriting the original autogenous shrinkage model of research group,combined with the autogenous shrinkage test results to adjust parameters,then a suitable autogenous shrinkage calculation model for high- performance recycled aggregate concrete is put forward.
出处
《福建建筑》
2016年第3期98-100,104,共4页
Fujian Architecture & Construction
基金
校青年科研人才培育基金项目(JXZ2014012)
关键词
再生骨料混凝土
自生收缩
预测模型
Recycled aggregate concrete
Autogenous shrinkage
Calculation model
