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All Journal Semesta Teknika Pena Teknik : Jurnal Ilmiah Ilmu-ilmu Teknik
Cahyo Agung Saputra
Universitas Sebelas Maret
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Mechanical Engineering Transportation

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Model Skala Laboratorium Tanah Ekspansif Saat Mengembang dengan Beban Slab Cahyo Agung Saputra; Bambang Setiawan; Yusep Muslih Purwana
Semesta Teknika Vol 25, No 2 (2022): NOVEMBER 2022
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v25i2.15240

Abstract

Tanah ekspansif termasuk dalam jenis tanah bermasalah yang sangat sensitif terhadap perubahan kadar air. Jenis tanah ini menyusut secara signifikan sebagai akibat dari perubahan volume pori, menciptakan gaya angkat pada struktur yang ada dan berpotensi merusaknya. Tujuan penelitian ini untuk melihat perilaku tanah ekspansif yang berada di bawah slab beton, mulai dari pola pengembangan, tekanan yang ditimbulkan ketika tanah mengembang dan kecepatan rambatan aliran air. Penelitian dilakukan secara experimen di Laboratorium Mekanika Tanah UNS Surakarta, alat uji utama yang digunakan dalam pengujian ini berbentuk box uji dua dimensi, parameter propertis tanah yang diuji adalah kadar air awal, specific gravity, grain size analysis, dan atterberg limit. Tanah ekspansif yang digunakan berasal dari daerah Sambungmacan. Hasil dari permodelan ini didapatkan, nilai tekanan pengembangan maksimum hasil uji menggunakan proving ring adalah sebesar 121,26 kPa dengan displacement maksimum 58,54 mm dan kecepatan rambatan air rata-rata 1,2094 mm/jam.
Expansive Soil Swelling Test of Small Scale Laboratory Model on Sambungmacan Soil, Central Jawa Cahyo Agung Saputra; Bambang Setiawan; Yusep Muslih Purwana
PENA TEKNIK: Jurnal Ilmiah Ilmu-Ilmu Teknik VOLUME 8 NUMBER 1 MARCH 2023
Publisher : Faculty of Engineering, Andi Djemma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51557/pt_jiit.v8i1.1431

Abstract

Soil is one of the most important elements in any civil engineering work, almost all construction activities are related to soil. One of the most common soil problems is expansive soil. This type of soil has a high potential to expand when compared to other types of soil. This research aims to find out how expansive the tested soil is and how it reacts when wetting. The test in this research is experimental, where the expansive soil test is modeled in a rectangular test box with a soil volume of 0.08 m3. The swelling and expansion pressures were measured using proving rings and dials, each totaling five units. The expansive soil used came from Sambungmacan Subdistrict, Sragen Regency, Central Java. The results of the property index test of Sambungmacan soil have a plasticity index percent value of 49.33% and a liquid limit (LL) of 90.16%. The test results showed that the maximum swelling reached 28.3% of the initial soil height of 200 mm and the maximum soil swelling pressure reached 103.23 kPa with a moisture content of 22.62%. The maximum pressure that occurs in each proving ring is at an average moisture content of 31.81%. The results of this study also show the effect of every 1% moisture content will produce a percent soil swelling of 0.40% to 1.08% and the average percentage of swelling pressure that occurs is in the range of 4.65 kPa to 10.26 kPa at every 1% swelling.
Co-Authors Bambang Setiawan Bambang Setiawan Yusep Muslih Purwana Yusep Muslih Purwana