| 不同类型C40及C50混凝土耐久性的试验研究 |
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| 引用本文： | 张粉芹,彭一春,王起才.不同类型C40及C50混凝土耐久性的试验研究[J].兰州铁道学院学报,2009,28(1):37-40. |
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| 作者姓名： | 张粉芹 彭一春 王起才 |
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| 作者单位： | 张粉芹,王起才,ZHANG Fen-qin,WANG Qi-cai(兰州交通大学土木工程学院,甘肃兰,州);彭一春,PENG Yi-chun(兰州工业高等专科学校建筑工程系,甘肃兰州,730050)
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| 摘 要： | 通过快速冻融法、美国电量法、干湿循环腐蚀法等分析了引气剂和复合矿物外加荆单掺及复掺对C40、C50大流动性混凝土抗冻性、抗氯离子渗透性、抗盐类腐蚀性等耐久性的影响规律．与基准混凝土相比，从抗冻性来看，双掺复合矿物外加剂和引气剂时效果最好，单掺引气剂次之，单掺复合矿物外加剂稍好；从抗氯离子渗透性来看，双掺复合矿物外加剂和引气剂时效果最好，单掺复合矿物外加剂次之，单掺引气剂稍有降低；在所设计的腐蚀条件下，C50各类型混凝土抗腐蚀均很强，C40各类型混凝土除引气混凝土外抗腐蚀性较强．
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| 关 键 词： | 复合矿物外加剂 引气剂 抗冻性 抗氯离子渗透性 抗盐类腐蚀性 |
Experimental Investigation on Concrete Durability of Different Types of C40 and C50 Concrete |
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| ZHANG Fen-qin,PENG Yi-chun,WANG Qi-cai.Experimental Investigation on Concrete Durability of Different Types of C40 and C50 Concrete[J].Journal of Lanzhou Railway University,2009,28(1):37-40. |
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| Authors: | ZHANG Fen-qin PENG Yi-chun WANG Qi-cai |
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| Institution: | 1.School of Civil Engineering;Lanzhou Jiaotong University;Lanzhou 730070;China;2.Department of Architectural and Civil Engineering;Lanzhou Polytechnical College;Lanzhou 730050;China |
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| Abstract: | Air-entraining agent and compound mineral admixture uni-doped or co-doped affecting durability(frost resistance,resistance to chloride ino permeability,corrosion resistance,etc)of high fluidity C40,C50 concrete is analysed through quick freeze-thaw tests,American coulometric method,dry-wet cycling corrosion method,etc..The results showed that for frost resistance,compared with normal concrete,concrete double mixed with compound mineral admixture and air-entraining agent has the best effect while uni-doped a... |
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| Keywords: | compound mineral admixture air-entrained concrete frost resistance resistance to chloride ino permeability resistance to salts corrosion |
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