LIME STABILIZED MALAYSIAN COHESIVE SOILS
DOI:
https://doi.org/10.11113/mjce.v16.15658Keywords:
Lime, Stabilization, Modification, Cementation, MineralogyAbstract
This paper highlights the essential tests for assessing the suitability of lime for
stabilizing soils and typical changes in soil characteristics due to modification and stabilization
processes with respect to mineralogical influences. The reasoning behind the mechanism of lime
clay reaction on the compressive strength development of stabilized soils has been established.
Clay with acidic origin exhibit less significant increase in compressive strength compared to clay
with high intensity of kaolinite and with alkaline origin. In general, lime contents instituted,
ranging from 3% to 6%, have contributed to a significant increase in unconfined compressive
strength, from 2.5 to 11 times of the untreated soils. The formation of calcium aluminates silicate
hydrate (CASH) observed from XRD test, after 14 days, indicates the early formation of new
product, due to lime-soil reaction. The effectiveness of stabilization process has been found to be
dependent on the quality of the lime, clay fraction, mineralogy and the alkalinity of the soil.
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