Experimental research on unconfined compressive strength of compacted cement soil
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Abstract:
Based on the generalization and analysis of laboratory experimental results 36 groups of cement soil,the influences of various factors (e.g. cement content, curing time, types of cement,curing conditions) on the mechanical properties of unconfined compressive strength of cement are presented.Results show that the unconfined compressive strength of cement soil increases with the growing curing time, and it is deeply affected by the cement content, cement types and curing time, While the effect of curing conditions are greater with a cement content of less than 10%. Moreover it is shown that the stress-strain response with the cement content and curing time of the cement soil. Increasement of curing time and cement content makes the cement soil to be harder and brittler, longer curing time,cement content is greater,the stress-strain relationship curve in the ascent is steep.Finally, change mechanism of the cement soil strength can be seen intuitively from the scanning electron microscope (SEM) test photos with the increasing of cement content.
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