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This paper presents a case study on the laboratory examination of quarry dust based geopolymer on some physical and mechanical properties of stabilized laterit soil. The laboratory test results indicate that both CBR and shrinkage limit of studied soil increased substantailly with increased rate of quarry dust based geopolymer (QD-based geopolymer). Specifically, the laterit soils were treated with QD-based geopolymer in the proportions of 10%, 20%, 20%, 30%, 40%, 50%, 60%, respectively, by weight of dry soil; the CBR values were increased from 7.4% to 35.71% at proportion of 40% QD-based geopolymer. The obtained CBR value of 35.71% meets the requirement to be used as filled meterials for pavement purpose according to the TCVN 8857:2012. In constrast with the increase in CBR and shrinkage values, the swelling potential of treated soils was found to be decreased with raising QD-geopolymer proportion, for example, the swelling potential decreased from 14.5÷6.9% as adding 10, and 60% of QD- based geopolymer, respectively .

A case laboratory study on effect of quarry dust based geopolymer on physical and mechanical properties of laterit soil