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《Journal of South China University of Technology(Natural Science Edition)》 2008-02
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A Method to Rapidly Measure Strength of Lime-flyash Treated Broken Stone

Wang Jia-ni1 Tan Yi-qiu1 Zhang Shu-juan2 Bai Jing2 Jiang Zhen-jun3 Song Yan-xian4(1.School of Transportation Science and Engineering,Harbin Institute of Technology,Harbin150090,Heilongjiang,China;2.Jilin Provincial Communication Scientific Research Institute,Changchun 130012,Jilin,China;3.Jilin Provincial Tianda Management of Civil Engineering Company Ltd.,Changchun 130061,Jilin,China;4.Petrochina Liaohe Petrochemical Company Institute,Panjin 124022,Liaoning,China)  
The long duration of the conventional strength-measuring method for lime-flyash treated broken stone may result in some difficulties in construction.In order to solve this problem,a new method to rapidly measure the strength is proposed,in which the conventional natural-pressure saturation and the curing temperature of 20℃ are respectively substituted by the negative-pressure saturation and the temperature of 60℃,and the strength correlati-vity between the rapidly-cured and the standard samples is obtained by statistical fitting.As compared with the conventional method,the proposed method,which shortens the testing time from 7d to 10h,is more integrated and systematic.The effectiveness of the proposed method is finally verified by its application to a construction project in Northeastern China.
【Fund】: “十一五”国家科技支撑计划重点项目(2006BAJ18B05);; 国家自然科学基金资助项目(5008005);; 教育部高等学校博士点专向科研基金资助项目(20060213002);; 教育部2006年度新世纪优秀人才支持计划(2006348)
【CateGory Index】: U414
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