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Impact of water and solution of glycerol on the treatment of sediment by cement

ABSTRACT In this paper, the effect of glycerol solution on the behaviour of a sediment of a clay soil and its treatment was investigated through a programme of experimental tests. Laboratory tests were conducted to study settlement of the clay soil in water and in solutions of glycerol with different concentrations. Also, treatment of the sediments deposited in water and solutions of glycerol was investigated by adding 5%, 8% and 10% cement to these sediments. Atterberg limits, compaction and unconfined compression tests were conducted on treated and untreated sediments. Comparison of the results showed that the behaviour of the sediments that were deposited in water and in different solutions of glycerol are not the same. The results also indicted that the cement is effective in the treatment of sediments deposited in solutions of glycerol and for a given percent of cement and curing time, the degree of treatment is dependent on the percent of glycerol in the solution. Increasing the concentration of glycerol decreases the strength of the sediment with time. Based on SEM analysis, it was found that the fabric of the soil deposited in water is different from those of the soils deposited in solutions of glycerol.