EFFECT OF WETTING-DRYING CYCLES ON VOLUMETRIC STABILITY OF CLAYEY SOIL STABILIZED WITH LIME AND PERLITE

Authors : Fatih Yilmaz, Duygu Fidan

Pages : 207-218

View : 19 | Download : 10

Publication Date : 2017-11-30

Article Type : Research

Abstract :  In this study, which is about the stabilization of the clayey soils, natural soil is mixed with 6% lime (optimum lime ratio) and 0%, 5%, 10%, 15%, 20%, 25%, 30% perlite. Perlite was used in this study in natural and fine grained form, separately. The test specimens prepared for the wetting-drying period were cured in the desiccator for 28 days. After curing, the test specimens were subjected to 12 wetting-drying periods according to ASTM D 559. In this study based on volumetric stability, it was observed that the natural soil sample could not maintain its volumetric integrity on the 2 nd day and dispersed. According to the durability conditions required in lime, cement, pozzolana-lime and pozzolana-cement-lime mixtures, the maximum allowable loss in sample weight at the end of 12 wetting-drying periods is between 6-14%. As a result of this study, it was seen that SLP2 samples were found to provide durability conditions against 12 wetting-drying periods.
Keywords : soil stabilization, wetting-drying period, lime, perlite, fineness effect