节点文献
基于粉煤灰掺量的砂浆塑性收缩开裂本构关系的研究
Research on Influence of Fly Ash Admixture to the Constitutive Equation of Plastic Shrinkage Cracking of Cement Mortar
【摘要】 研究了粉煤灰掺量对于砂浆塑性收缩性能和塑性粘度的影响。试验表明,随着粉煤灰掺量的增加,砂浆抗裂指数增大,开裂所需时间增加,塑性粘度降低;建立了粉煤灰掺量与砂浆抗裂指数、开裂时间的本构关系,及掺加粉煤灰后砂浆塑性粘度与抗裂指数的本构关系。
【Abstract】 The influence of fly ash admixture to plastic shrinkage cracking and plastic viscosity of cement mortar is studied. Results show that with the increase of fly ash admixture,both cracking- resistance index and time for cracking of cement mortar increase,and its plastic viscosity decreases. The constitutive relations between content of fly ash and cracking- resistance index of cement mortar,content of fly ash and time for cracking of cement mortar,and plastic viscosity of cement mortar with fly ash and its cracking- resistance index have been built respectively.
【关键词】 粉煤灰;
水泥砂浆;
塑性收缩开裂;
塑性粘度;
本构关系;
【Key words】 fly ash; cement motor; plastic shrinkage cracking; plastic viscosity; constitutive equations;
【Key words】 fly ash; cement motor; plastic shrinkage cracking; plastic viscosity; constitutive equations;
【基金】 国家重点基础研究发展计划(973计划:2009CB623104-5);“中央高校基本科研业务费专项资金”(0500219143)
- 【文献出处】 粉煤灰综合利用 ,Fly Ash Comprehensive Utilization , 编辑部邮箱 ,2013年06期
- 【分类号】TU528
- 【被引频次】1
- 【下载频次】90