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.
Highlights
Stabilization of soil in geotechnical engineering means the increase in soil engineering properties
In this study, which is about the stabilization of the clayey soils, natural soil is mixed with 6% lime and 0%, 5%, 10%, 15%, 20%, 25%, 30% perlite
In this study based on volumetric stability, it was observed that the natural soil sample could not maintain its volumetric integrity on the 2nd day and dispersed
Summary
Stabilization of soil in geotechnical engineering means the increase in soil engineering properties. Expansive soils, which have high clay contents, are problematic soils that need to be stabilized. The volume changes of expansive soils is damager when subjected to moisture insconstancy [1]. Expansive soils can lead to foundation problems, distortions and failures in structures due to their shrinkage and swelling behavior [2]. Engineering properties and bearing capacity of expansive clayey soils is low. High settlement of expansive soil is detrimental for structures and geotechnical projects [3]. Amendment of expansive soils is necessary to diminish their destructive effects [4]
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