Paper Title:
Performance Improvement of Soft Rock as Filling Material for Subgrade
  Abstract

A soft rock is generally prohibited to be used as filling material for highway subgrade. A novel method for improving the performance of subgrade is proposed. Aiming at the large amount of highly weathered soft rock along Shiyan-Tianshui superhighway, the physical and mechanical properties of the natural soft rock is analyzed. Then the cement is mixed into the soft rock as filling material to better the subgrade performance.The field and indoor experiments showed that the maximum dry density and optimum water content increases when the cement content increases. By mixing the cement, the subgrade performance can be significantly improved.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
3444-3448
DOI
10.4028/www.scientific.net/AMR.250-253.3444
Citation
X. S. Mao, L. G. Zhou, X. Z. Zheng, B. Ma, J. Liang, "Performance Improvement of Soft Rock as Filling Material for Subgrade", Advanced Materials Research, Vols. 250-253, pp. 3444-3448, 2011
Online since
May 2011
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Price
$32.00
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