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	Study on improvement of concrete durability by using high performance cement
	Nai-Qian Feng ; Quan-Lin Niu ; Jun-Wang Cai ; Chong-Zhi Li ; Ren-Chang Huang
	2010-05-11 ; 2010-05-11
关键词	Practical/ cements (building materials) corrosion protection durability fly ash reinforced concrete solvation/ concrete durability high performance cement sulphate ion chloride ion reinforced concrete structures superfine mineral powder alkaline saline corrosion composite cement clinker metakaolin fly ash powder alkaline saline soil corrosion mortar bar test visual examination ASTM C1202 hydration heat antifreezing properties/ E3030 Construction industry E1020 Maintenance and reliability E1710 Engineering materials
中文摘要	Sulphate ion and chloride ion that exist in alkaline saline soils may cause serious problems on the durability of reinforced concrete structures, while it was found that superfine mineral powder plays a positive role in the precaution of the alkaline saline corrosion. A composite cement named high performance cement (H.P.C) composed of clinker, metakaolin and fly ash powder in appropriate proportions is developed with good performance in preventing concrete from alkaline saline soil corrosion. Mortar bar test and visual examination showed that the cement could effectively control AAR and sulphate ion related expansion, and the charge passed tested according to ASTM C1202 was decreased to "negligible" level for concrete with W/B ratio of 0.3, and "very low" grade for concrete with W/B ratio of 0.45 and 0.55 when the high performance cement was used. Other properties such as low hydration heat and anti-freezing properties, as well as the uniformity of the fresh concrete (with no bleeding and segregation), made it an important material in the construction of concrete structure in alkaline saline soils.
语种	英语 ; 英语
出版者	Trans Tech Publications ; Switzerland
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/27077]
专题	清华大学
推荐引用方式 GB/T 7714	Nai-Qian Feng,Quan-Lin Niu,Jun-Wang Cai,et al. Study on improvement of concrete durability by using high performance cement[J],2010, 2010.
APA	Nai-Qian Feng,Quan-Lin Niu,Jun-Wang Cai,Chong-Zhi Li,&Ren-Chang Huang.(2010).Study on improvement of concrete durability by using high performance cement..
MLA	Nai-Qian Feng,et al."Study on improvement of concrete durability by using high performance cement".(2010).

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