Mechanics Properties of the Lime-Fly Ash Stabilized Soil for Pavement Structures

Abstract:

Mechanics properties of lime- fly ash stabilized soil are investigated. First, the chemical composition of fly ash are analyzed by spectral analysis test. Compaction experiments of all mix proportion projects are carried out in different water conditions to obtain the optimum water contents. Then the optimum mix proportion is obtained by the unconfined compressive strength and the compression rebound modulus test. Finally, the pavement structures design for a highway of lime- fly ash stabilized soil road sub-base is done. By the comparison, a conclusion can be drawn that lime-fly ash stabilized soil is suitable for flexible pavement or semi-rigid pavement because of its good strength and rigidity which can effectively reduce thickness of the lower pavement and basic deflection.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 1445-1448
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.1445
• Online since: November 2012
• Authors: Tao Cheng, Ke Qin Yan
• Keywords: Compressive Strength, Flexible Pavement Structures, Lime-Fly Ash Stabilized Soil, Optimum Mix Proportion, Rebound Modulus, Spectral Analysis Test

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