TIME VARIATION EFFECT ON UNCONFINED COMPRESSIVE STRENGTH VALUE ON CLAY AND SILT STABILIZED USING CEMENT ON SOAKING CONDITION

Dindha Amalia Syananta, Idharmahadi Adha, Seytanto Setyanto

Abstract


Soil in Indonesia are mostly clay and silt, which tend to be unstable, such as the soill support,
compressive strength of soil and land subsidence. Unconfined Compression Test is a method that
done in the laboratory to measure compression until the soil separates from its grains and to
measure the soil stretch from that press. In this research to improve the quality of the soil used
materials like cement mixer with a variety of curing 7 days, 14 days and 28 days in order to
determine the optimum strength in clay and silt.
From the effect of variations in curing time on compressive strength test values obtained
increase in the compressive strength at the highest cement mix with a variety of curing time of 14
days at 0.5927 kg /cm 2 for clay. On the silt soil increase in the compressive strength with the
highest free 14-day curing time variation of 0.5819 kg / cm2. Under optimal conditions the
influence of a mixture of cement on clay and silt soil occurred in 9% of cement mix with a curing
time of 14 days. From the results obtained show consistent with an increase in cement content,
an increase in the value of qu. With increasing curing time then the compressive strength also
increased.
Keywords: compressive strength, cement, curing, clay, silt

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ISSN: 2303-0011