Administration of Stabilized Flyash Stratum in Flexible Pavements

M. Anjan Kumar, D.S.V. Prasad, G.V.R.Prasada Raju


Expansive soils are major source of heave stimulated structural agony. Swelling of expansive soils cause grave problems and create damage to structures. Extensive work has been carried out on waste materials concerning the feasibility and environmental suitability. Flyash, a waste byproduct from coal burning in thermal power stations is bountiful in India causing health, environmental and dumping problems. Stabilization process with model test tracks over expansive subgrade in flexible pavements is one of the solutions. Cyclic plate load tests along with heave measurements are carried out on the tracks with chemicals like lime and cement introduced in flyash subbase laid on expansive subgrades. Test results show that maximum load carrying capacity is obtained for treated alternatives compared to untreated alternatives.

Keywords: Expansive soil, Flyash, Lime, Cement,Flexible pavement

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ISSN (Paper)2224-5790 ISSN (Online)2225-0514

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