Paper Title:
Experimental Study on Water Stability of Asphalt Mixture
  Abstract

To improve water stability, we mixed asphalt mixture with cement, slag micro powders and lignin fibers, respectively. The Marshall immersion and freeze-thaw splitting tests were carried out. It is shown that cement replacing mineral powders can improve the water stability of asphalt mixture, especially at the content of 1/3 mineral powders, with a Marshall stability of 11.50 kN and a soaking residual stability of 92.46%, increasing by 10.79% and 6.58%, respectively, than those without any cement. According to the results of cement replaced by slag micro powders, its stability increases by 1.38kN, and the soaking residual stability is 90.64%, but the freeze-thaw splitting tensile strength slightly decreases. It is indicated that the water stability of the asphalt mixture can be improved by adding 0.3% lignin fibers, the soaking residual stability increasing from 86.75% to 97.41% and the ratio of freeze-thaw splitting tensile strength rising from 60.94% to 80.29%. It is concluded that the best effect can be reached by adding 0.3% lignin fibers.

  Info
Periodical
Edited by
Deliang Chen
Pages
135-138
DOI
10.4028/www.scientific.net/AMR.266.135
Citation
Y. Q. Yuan, D. Y. Gao, J. Zhao, J. Y. Tang, S. H. Zhai, "Experimental Study on Water Stability of Asphalt Mixture", Advanced Materials Research, Vol. 266, pp. 135-138, 2011
Online since
June 2011
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