Abstract
The bond which develops during curing between soil particles in the presence of lime and moisture is a result of the growth and the development of a newly formed cementitious phase (or phases). For the particular soil studied, appreciable reaction occurs between soil particles and lime only at elevated temperature, in a moist environment The growth and development of the new phase is accompanied by an increase in compressive strength of the soil-lime composites. Scanning electron microscopy (SEM) studies show the phase to consist of an interlocking network of fine platelets and fibres, and although no direct determination of composition was possible, evidence from X-ray analysis and thermal analysis shows that the new phase is poorly crystalline and probably consists of a hydrate of calcium silicate or calcium aluminate.
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Arabi, M., Wild, S. Microstructural development in cured soil-lime composites. J Mater Sci 21, 497–503 (1986). https://doi.org/10.1007/BF01145514
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DOI: https://doi.org/10.1007/BF01145514