基于大样本的沥青与粗集料原料对混合料水稳定性的影响分析

doi:10.11896/cldb.18100167

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Abstract The type and quality of asphalt and coarse aggregate are the key factors determining the quality of asphalt pavement. In order to quantitatively characterize the influence of different asphalt models, manufacturers and coarse aggregate properties on the stability of asphalt mixture water, the significance level of the difference in the water stability of asphalt mixture between the same type and different places of origin is analyzed. Methods based on a large sample of asphalt mixture production proportion database, this work adopts the big data analysis method to quantitatively study the influence of different asphalt and aggregate parameters on the water stability of the mixture. Firstly, the difference of water stability index between different asphalt and coarse aggregate combinations was analyzed by rank-sum test, and then the difference level of water stability of the same asphalt mixture of different manufacturers was studied by generalized factor variance analysis. The results showed that, for the water stability of various mixtures, (a)basalt and limestone have demonstrated similar performance, (b) modified asphalt is superior to matrix asphalt, (c) SUP is superior to AC, (d) the smaller the nominal particle size, the better the water stability, (e) asphalt manufacturers have no significant influence on the water stability of asphalt mixtures. The analysis method based on large samples is applicable to the analysis of water stability of asphalt mixture. The influence of asphalt penetration grade, nominal maximum particle size and graduation, on MS₀ are obviously more significant than those of TSR.

Key words： asphalt mixture water stability performance large samples analysis rank-sum test least-significant difference test(LSD)

Published: 28 October 2019

CLC number:

U416

Fund:This work was financially supported by the National Natural Science Foundation of China (51308061),the Natural Science Foundation of Shaanxi (2019JM-218),the Fundamental Research Funds for the Central Universities (300102258105),Henan Province Science and Technology Major Project (151100310700).

About author:: Jiefu Bi, received his M.S. degree in July 2014 from Guangxi University of Science and Technology in structural engineering from September 2015. Now he is studying in Chang’an University as a Ph.D. candidate. He is mainly engaged in the experimental research of road materials and the application research of data mining analysis in the field of road;Nanxiang Zheng, professor, member of Communist Party of China, doctor of engineering. Working in School of Highway,Chang’an University. He won the second prize of national science and technology progress award in August 1991, the first prize of national education commission science and technology progress award in July 1990, the second prize of science and technology award of China highway society and three third prizes. Mainly engaged in road materials and road structure design, highway maintenance technology and other aspects, focusing on the study of soil and reinforcement soil principle, cement stabilized base material durability, asphalt pavement durability and maintenance technology. He has published dozens of articles and three monographs in domestic and fo-reign journals.

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	BI Jiefu
	ZHENG Nanxiang
	DONG Shi
	WU Xiaoxin

Cite this article:

BI Jiefu,ZHENG Nanxiang,DONG Shi, et al. Effects of Asphalt and Aggregates on Water Stability Performance of Asphalt Mixture Using Large Samples Analysis[J]. Materials Reports, 2019, 33(24): 4098-4104.

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http://www.mater-rep.com/EN/10.11896/cldb.18100167 OR http://www.mater-rep.com/EN/Y2019/V33/I24/4098

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