| 基于粉煤灰掺量的砂浆塑性收缩开裂本构关系的研究 |
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| 引用本文： | 马一平,郭建平,杨晓杰,李国友,朱蓓蓉. 基于粉煤灰掺量的砂浆塑性收缩开裂本构关系的研究[J]. 粉煤灰综合利用, 2013, 0(6): 7-9 |
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| 作者姓名： | 马一平 郭建平 杨晓杰 李国友 朱蓓蓉 |
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| 作者单位： | [1]同济大学先进土木工程材料教育部重点实验室,上海201804 [2]中国建筑股份有限公司技术中心,北京101300 |
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| 基金项目： | 基金项目：国家重点基础研究发展计划（973计划：2009CB623104-5）和“中央高校基本科研业务费专项资金”（0500219143） |
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| 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。
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| 关 键 词： | 粉煤灰 水泥砂浆 塑性收缩开裂 塑性粘度 本构关系 |
Research on Influence of Fly Ash Admixture to the Constitutive Equation of Plastic Shrinkage Cracking of Cement Mortar |
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| Ma Yiping,Guo Jianping,Yang Xiaojie,Li Guoyou,Zhu Beirong. Research on Influence of Fly Ash Admixture to the Constitutive Equation of Plastic Shrinkage Cracking of Cement Mortar[J]. Fly Ash Comprehensive Utilization, 2013, 0(6): 7-9 |
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| Authors: | Ma Yiping Guo Jianping Yang Xiaojie Li Guoyou Zhu Beirong |
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| Affiliation: | 1(1. Key Laboratory of Advanced Civil Engineering, Tongji University, Shanghai 201804, China; 2. Technology Center, China State Construction Engineering Corporation, Beijing 101300, China) |
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| 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 de- creases. The constitutive relations between content of fly ash and cracking-resistance index of cement mortar, content of fly ash and time for crack- ing of cement mortar, and plastic viscosity of cement mortar with fly ash and its cracking-resistance index have been built respectively. |
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| Keywords: | fly ash cement motor plastic shrinkage cracking plastic viscosity constitutive equations |
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