| 早龄期混凝土氯离子扩散试验研究 |
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| 引用本文： | 杨小明,郑建军,邢鸿燕.早龄期混凝土氯离子扩散试验研究[J].国外建材科技,2011,32(3):42-45. |
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| 作者姓名： | 杨小明 郑建军 邢鸿燕 |
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| 作者单位： | 浙江工业大学建筑工程学院,杭州,310014 |
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| 摘 要： | 通过试验研究了养护时间、骨料级配、水灰比、骨料体积含量和最大骨料直径对早龄期混凝土氯离子扩散系数的影响。结果表明,早龄期混凝土氯离子扩散系数随着养护龄期的增大而减小,但随着水灰比的增大而增大;早龄期混凝土氯离子扩散系数随着骨料体积含量和最大骨料粒径的增大而减小;也发现骨料级配对早龄期混凝土氯离子扩散系数有一定的影响。
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| 关 键 词： | 早龄期混凝土 氯离子扩散系数 养护时间 骨料级配 骨料体积含量 最大骨料直径 |
Experimental Study on the Diffusion of Chloride Ions into Early Age Concrete |
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| YANG Xiao-ming,ZHENG Jian-jun,XING Hong-yan.Experimental Study on the Diffusion of Chloride Ions into Early Age Concrete[J].Science and Technology of Overseas Building Materials,2011,32(3):42-45. |
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| Authors: | YANG Xiao-ming ZHENG Jian-jun XING Hong-yan |
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| Affiliation: | (School of Civil Engineering and Architecture,Zhejiang University of Technology,Hangzhou 310014,China) |
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| Abstract: | The effects of the curing time,aggregate gradation,water/cement ratio,aggregate volume content and maximum aggregate diameter on the chloride diffusivity of early age concrete were studied by experiment.It was found that the chloride diffusivity of early age concrete decreased with the increase of the curing time,but increases by increasing the water/cement ratio.The chloride diffusivity of early age concrete decreases with the increase of the aggregate volume content and maximum aggregate diameter.It was also found that the aggregate gradation had a certain influence on the chloride diffusivity of early age concrete. |
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| Keywords: | early age concrete chloride diffusivity curing time aggregate gradation aggregate volume content maximum aggregate diameter |
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