Hubungan Nilai Konsolidasi dan Nilai Kuat Tekan Bebas pada Tanah Lempung yang Disubtitusi Material Pasir

Abstract

This study was conducted to determine the behavior of reduction and compressive strength in clay
which is substituted with sand material and to see the correlation between the value of
consolidation and the compressive strength on the soil. Because the clay when getting loading
there will be a significant reduction in soil that affects the reduction in carrying capacity or
compressive strength of the soil. In this study used clay from the village of Belimbing Sari, Jabung
district, East Lampung with the coordinates of 105° 39 '10.74 "T and 5 ° 31' 44.26" S.
The research was done by testing on samples without a mixture of clay and the clay soil mixed
with sand with varying amounts of sand mixture of 10%, 20%, and 30%. Testing was conducted on
a standard compaction test to find the optimum water content, consolidation testing to find the
value of the coefficient of consolidation (Cv), compression index (Cc) and coefficient of
compression (Av) and compressive strength testing are free to seek the compressive strength on the
soil.
Based on the results of this study can be seen in the behavior of a mixture of clay and sand without
once mixed with sand material that is an increase in the value of the coefficient of consolidation
(Cv), a decrease in the value of compression index (Cc) and coefficient of compression (Av) and an
increase in the compressive strength (qu) in the clay soil. Value increases and decreases that occur
without a mixture of clay and after mixed variations mixture of 10%, 20%, and 30% tend to be
stable. From this study it can be concluded that the value of consolidation and strong correlation
press substituted clay with sand material that is smaller then the consolidation of soil compressive
strength will be greater as well.
Keywords: Soil Clay, Sand, Consolidation, Soil Compressive Strength