| 粉煤灰掺量对混凝土性能的影响 |
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| 引用本文： | 袁承斌,高文达.粉煤灰掺量对混凝土性能的影响[J].扬州大学学报(自然科学版),2010,13(1). |
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| 作者姓名： | 袁承斌 高文达 |
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| 作者单位： | 1. 扬州大学水利科学与工程学院,江苏扬州,225009
2. 南京市水利建筑工程有限公司,南京,210001 |
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| 基金项目： | 扬州大学自然科学基金资助项目 |
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| 摘 要： | 为探讨粉煤灰适宜掺量对混凝土性能的影响,对粉煤灰掺量w(等质量取代水泥)为0,15%,30%的3种工况混凝土进行强度与耐久性试验.试验结果表明,粉煤灰取代量w为15%时,能明显提高混凝土强度,在加强养护的情况下,对混凝土碳化深度影响不大;粉煤灰取代量w为30%时,混凝土强度增长不明显,对混凝土碳化深度影响较大;粉煤灰掺量w由0增加到15%时,混凝土的氯离子含量下降7%~17%;粉煤灰掺量w由0增加到30%时,混凝土的氯离子含量下降15%~30%.综合考虑,粉煤灰掺量w=15%对普通混凝土较为适宜.
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| 关 键 词： | 混凝土 粉煤灰 掺量 |
Effect of the amount of added fly-ash on the character of concrete |
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| YUAN Cheng-bin,GAO Wen-da.Effect of the amount of added fly-ash on the character of concrete[J].Journal of Yangzhou University(Natural Science Edition),2010,13(1). |
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| Authors: | YUAN Cheng-bin GAO Wen-da |
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| Institution: | YUAN Cheng-bin1*,GAO Wen-da2(1.Sch of Hydr Sci & Engin,Yangzhou Univ,Yangzhou 225009,China,2.Nanjing Water Resour Dev Co.,Ltd,Nanjing 210001,China) |
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| Abstract: | To research the effect of suitable amounts of the added fly-ash on the character of concret,the strength and durability experiments of concrete with the proportion of 0,15%,30% fly ash are tested.The experiment results show that adding of 15% fly ash can obviously improve the concrete strength,and has less effect on the carbonation of concrete depth under full maintenance,nevertheless,30% fly ash has lesser improvement on strength,and has greater effect on the carbonation depth of concrete.When fly ash adde... |
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| Keywords: | concrete fly ash amounts of the added fly-ash |
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