| 低质粗集料水工混凝土性能研究 |
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| 引用本文： | 陈建国,蒋亚清,杨培杰.低质粗集料水工混凝土性能研究[J].商品混凝土,2009(6). |
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| 作者姓名： | 陈建国 蒋亚清 杨培杰 |
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| 作者单位： | 河海大学材料科学与工程学院; |
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| 摘 要： | 针对水工混凝土高耐久性要求,研究了优质粉煤灰、萘系减水剂、松香热聚物类引气剂以及粗集料品质对水工混凝土抗渗性、抗碳化性和抗冻融性的影响。研究表明:粗集料的表观密度、吸水率在超出DL/T5144-2001规范的要求时也能配置出高耐久性水工混凝土;粉煤灰掺量为10%、萘系减水剂掺量为1.0%、松香热聚物类引气剂掺量为0.01%时,低质粗集料混凝土抗渗性、抗碳化性和抗冻融性可满足高耐久性水工混凝土的使用要求。
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| 关 键 词： | 水工混凝土 低质粗集料 抗渗性 抗碳化 抗冻融 |
Properties of hydraulic concrete with low quality coarse aggregate |
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| Chen Jian guo,Jiang Ya qing,Yang Pei jie.Properties of hydraulic concrete with low quality coarse aggregate[J].Ready-mixed Concrete,2009(6). |
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| Authors: | Chen Jian guo Jiang Ya qing Yang Pei jie |
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| Affiliation: | School of Materials Science and Technology;Hohai University;Nanjing 210098;China |
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| Abstract: | To achieve high durability of hydraulic concrete,this paper researched the effect of prime fly ash,naphthalene based water reducer,rosin based air entraining agent and quality of coarse aggregate on permeation,carbonization and freeze-thaw of hydraulic concrete.It is found that high durability hydraulic concrete can also made by coarse aggregate which beyond the scope of DL/T5144-2001;when 10% of fly ash,1.0% of naphthalene based water reducer and 0.01% of rosin based air entraining agent are used,permeatio... |
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| Keywords: | hydraulic concrete low-quality coarse aggregate permeation carbonization freeze-thaw |
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