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《Concrete》 2012-07
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Technology and economic analysis about concrete added fly ash used in highway engineering to prevent alkali-aggregate reaction

FU Xiang-hong(Anyang Institute of Technology School of Civil and Architectural Engineering,Anyang 455000,China)  
Alkali-aggregate reaction is one important factor of influencing concrete durability.It can prevent alkali-aggregate reaction efficient to add fly ash.Make mortar-bar method of adding different percentage fly ash substitute for equivalent cement,expansion ratio on 14 day less than prescriptive numbers.And expansion ratio is the minimum when adding 30% fly ash.Economic analysis about adding different percentage fly ash to make different strength grade indicates:more high concrete strength grade,more obvious Economic analysis.
【Fund】: 河南省科技计划重点攻关项目(102102310311)
【CateGory Index】: U414
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1 ZENG Yang-chun1,ZHENG Ke-ren2,LI Yi-jin2(1.The Highway Bureau of Shunde District,Foshan City,Foshan 528000,China;2.School of Civil and Architectural Engineering,Central South University,Changsha 410075,China);Effects of mineral admixtures on wear resistant ability of concrete and mechanism[J];Journal of Railway Science and Engineering;2007-02
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