PERBANDINGAN PENGUKURAN KADAR AIR TANAH LEMPUNG MENGGUNAKAN METODE GRAVIMETRY DAN METODE GYPSUM BLOCK BERDASARKAN VARIASI KEDALAMAN
Abstract: Soil is one of the
most important things in every civil engineering construction. But the problem
is how to define physical and mechanic characteristic of the soil. Physical and
mechanic characteristic that have influence on bearing capacity of the soil is
water content. Size of soil also has effects on the changing of water content.
To define water content, engineer is often using Gravimetry Method, but this
method can only be doing in laboratory, so it can’t specifically describe real
condition of water content in the fields. Then, an in-site test such as
Electrical Sensory Method is needed, in order To get correct result of water
content in fields. In Electrical Sensory Method there is one method called
Gypsum Block Method, this method is an in-situ water content test with
individual calibration on laboratory.The results from Oebelo Village, Kupang
District soils sample, the soils is CH soil, where CH is organic clay with high
plasticity, Fat Clay. By using gypsum block method, water content results is in
range of 19,35 % - 41,05 %, while with gravimetry method the water content is
in range of 18,34 % - 34, 67 %. Water content test using gypsum block method
can only be doing at 0,50 m dan 1,00 m depth range, at 1,50 m dan 2,00 m depth
range cannot be using this method because is too difficult to install gypsum
block and the gap results between gravimetry method and gypsum block method is
in range of 4,19 % - 7,69 %.
Penulis: Tri M. W. Sir, I Made
Udiana, Sari R. Isu
Kode Jurnal: jptsipildd160289
