Investigating the Impact of Mixing the Fine-Grained with Bentonite on its Physical Properties and Consistency Limits Article Swipe
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· 2025
· Open Access
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· DOI: https://doi.org/10.4028/p-raoh71
· OA: W4412996811
Expansive soil is strongly influenced by the water content inside the soil particle , the significant changes of moisture content cause volume changes. The swelling and shrinkage potential of the soil can be indirectly identified by running the consistency limits test which are by controlling the plasticity index (IP) value and shrinkage limit (SL) value. This research aims to determine the value of liquid limit (LL), plastic limit (PL), plasticity index (IP), and shrinkage limit (SL) of soil-bentonite mixtures as expansive soil materials and analyzing the expansion potential of the modificated materials by its value. There were 5 variations of mixtures which are original soil (S), bentonite (B), 25%S+75%B, 50%S+50%B and 75%S+25%B. The results show the properties of soil-bentonite mixtures. The specific gravity and the grain size distributions were not significantly affected by the increase of the amount of bentonite. LL,PL and PI value significantly increase while SL value were decreased. Along with the increase of bentonite percentage, the activity value also increased by 1.5 to 4. It summarizes that by adding bentonite on the original soil, the expansion potential of the soil mixtures also increased.
