Comparative Experiment Research on Different Material Improvement to the Influence of Expansive Soil Expandability

Abstract:

Based on the improved trial test of a construction section of expansive soil subgrade filling in Small Crow first class road in Yi Chang, a comparative analysis about the improvement on the swell-shrink performance of expansive soil test sample by adding lime, cement, fly ash, weathered sand is made. From the applicability and economic perspective, weathered sand improvement with the best effect. The best construction mixing sand ratio for medium and strong expansive soil is determined as10%, the expansive soil after improved treatment can be used as the first class road subgrade filling.

• Periodical: Advanced Materials Research (Volume 598)
• Pages: 574-579
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.598.574
• Online since: November 2012
• Authors: Jun Yang, Jian Ling Wang, Guo Dong Zhang, Yun Wei Tang, Zhi Gang Xie
• Keywords: Cement, Expansive Soil, Fly Ash (FA), Improvement, Lime, Trial Test, Weathered Sand

References

[1] Hui Qing Hui and Sheng You Lei. Summarizing on the Swelling Mechanism of Expansive Soil and the Method of Restraining the Swelling of Expansive Soil. Journal of Highway and Transportation Research and Development, 2005, 22 (9):90-92.

[2] Ji Ru Zhang, San Xia Xu. Compaction Behaviour on Subgrade Filler of Stabilizing Expansive Soil Mixed with Lime and Fly Ash. Journal of Wuhan University of Technology, 2002, 24 (9): 27-30.

[3] Ji Ru Zhang, Guang Hui Yin and Ming Hai Li. Behaviors of Weak Expansive Soil and Suggestion on Standard of Constructing Embankment. Journal of Wuhan University of Technology, 2003, 25 (1): 37-39.

[4] Xi Bao Rao, Bin Huang, Yun Gang Wu and Fan Tan. Experimental Study of Expansion Characteristics of compacted expansive soil. Engineering Journal of Wuhan University (engineering edition), 2011, 44(2): 211-215.

[5] Hui Qing Hui, Hu Tong Kang and Xin Dong Wang. Improved Mechanism of Expansive Soils by Lime and Fly-ash. Journal of Chang-an University (Natural Science Edition), 2006, 26 (2):34-37.

[6] Hua Qiang Han, Sheng Shu Cheni. A Study on Strength and Deformation of Expansive Soils. Chinese Journal of Geotechnical Engineering, 2004, 26 (3): 422-424.