复合改性沥青填缝料的性能优化方法

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Abstract Central composite design-response surface methodology was used to determine the best content of raw materials and improve the performance of hot-poured bituminous sealant. Content range and process technology were studied through single factor analysis method. Cone penetration, elastic recovery, creep strength, and creep strain rate "m" were analyzed by central composite model testing. The response surface of the overall desirability was established and the optimal content of raw materials were determined and verified. Analyses of test results indicated that the optimal content of raw materials were as follows: rubber powder-25%, additive-7%, SBS-5%, and SBR-3%. This paper proposes the application of central composite design in the optimization of raw material dosage of hot-poured bituminous sealant.

Key words： road engineering sealant central composite design-response surface methodology composite modified asphalt performance optimization

Received: 21 October 2012

Fund:Supported by the National Key Technologies R&D Program of China during 11^th Five-year Plan Period (No.2008BAG10B02) and the National Natural Science Foundation of China (No.51008099)

Corresponding Authors: TAN Yi-qiu, yiqiutan@163.com E-mail: yiqiutan@163.com

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	TAN Yi-qiu
	GUO Meng
	ZHANG Lei
	CAO Li-ping

Cite this article:

TAN Yi-qiu,GUO Meng,ZHANG Lei, et al. Performance Optimization Method of Composite Modified Asphalt Sealan [J]. Journal of Highway and Transportation Research and Development, 2013, 7(2): 1-7.

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http://manu27.magtech.com.cn/Jwk_gljtkj_en/EN/ OR http://manu27.magtech.com.cn/Jwk_gljtkj_en/EN/Y2013/V7/I2/1

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