| 骨料粒径与ASR膨胀关系及计算研究进展 |
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| 引用本文： | 钱春香,庄园,徐文.骨料粒径与ASR膨胀关系及计算研究进展[J].东南大学学报(自然科学版),2010,40(5). |
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| 作者姓名： | 钱春香 庄园 徐文 |
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| 作者单位： | 1. 东南大学材料科学与工程学院,南京,211189
2. 东南大学江苏省土木工程材料重点实验室,南京,211189 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目 |
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| 摘 要： | 综述了骨料粒径与碱硅酸反应(ASR)膨胀关系的研究现状,对现有研究的局限性和存在的问题进行了分析,阐述了进一步开展骨料粒径与ASR膨胀关系研究的必要性.重点介绍了ASR膨胀理论的研究方法,分别从材料层次和结构层次介绍了不同计算模型的思路、基本原理、基本假设和关键参数,指出了各自的优缺点和适用范围.最后通过对比分析,认为无论是材料层次还是结构层次的模型,在模拟ASR膨胀时均存在着一定的缺陷,并指出为了建立更为合理、适用性更强的ASR膨胀模型,应当同等重视微观的化学反应本身及宏观的物理膨胀过程.
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| 关 键 词： | 碱硅酸反应 骨料粒径 膨胀 计算模型 |
Effect of aggregate size on ASR expansion and progress of its calculation model |
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| Qian Chunxiang,Zhuang Yuan,Xu Wen.Effect of aggregate size on ASR expansion and progress of its calculation model[J].Journal of Southeast University(Natural Science Edition),2010,40(5). |
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| Authors: | Qian Chunxiang Zhuang Yuan Xu Wen |
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| Institution: | Qian Chunxiang Zhuang Yuan Xu Wen(School of Materials Science and Engineering,Southeast University,Nanjing 211189,China)(Jiangsu Key Laboratory of Construction Materials,China) |
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| Abstract: | New research achievements in the effect of aggregate size on alkali-silica reaction(ASR) expansion are reviewed.The limitations and existing problems are analyzed and the importance of further studies on the relationship between aggregate size and ASR induced expansion is pointed out.Then,the normal research method for investigating ASR expansion is introduced.The mechanism,hypothesis,key parameters of the existing models are discussed on the material level and structural level,respectively.The advantages a... |
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| Keywords: | alkali-silica reaction aggregate size expansion calculation model |
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