A Method to Rapidly Measure Strength of Lime-flyash Treated Broken Stone

Journal of South China University of Technology (Natural Science Edition) ›› 2008, Vol. 36 ›› Issue (2): 29-34,47.

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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, Harbin 150090, 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

Received:2007-04-11 Revised:2007-06-13 Online:2008-02-25 Published:2008-02-25
Contact: 王佳妮（1975-），女，博士生，讲师，主要从事道路建筑材料研究． E-mail:wangjiani3328@126.com
About author:王佳妮（1975-），女，博士生，讲师，主要从事道路建筑材料研究．
Supported by:
“十一五”国家科技支撑计划重点项目（2006BJ18B05）;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）

Abstract

Abstract:

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 correlativity 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 7 d to 10 h, is more integrated and systematic. The effectiveness of the proposed method is finally verified by its application to a construction project in Northeastern China.

Key words: lime-flyash treated broken stone, strength, rapid measurement, negative-pressure saturation, hightemperature curing, regression analysis

Wang Jia-ni Tan Yi-qiu Zhang Shu-juan Bai Jing Jiang Zhen-jun Song Yan-xian . A Method to Rapidly Measure Strength of Lime-flyash Treated Broken Stone[J]. Journal of South China University of Technology (Natural Science Edition), 2008, 36(2): 29-34,47.

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A Method to Rapidly Measure Strength of Lime-flyash Treated Broken Stone

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