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All Journal Jurnal Aplikasi Teknik Sipil
MD Nujid, Masyitah
UiTM Cawangan Pulau Pinang
Civil Engineering, Building, Construction & Architecture

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Behavior Swelling-Shrinkage of Residual Soils as Chemically Stabilized MD Nujid, Masyitah; Muntaha, Moh; Wahyuni, Fitria
Jurnal Aplikasi Teknik Sipil Vol 23, No 2 (2025)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2579-891X.v23i2.21693

Abstract

The soils of Balikpapan belong to the soft to medium soil group, consisting of residual and sedimentary soils. Residual soil generally has granules in the silty soil group. Residual soil has a high shear strength when dry, shrinks when wet, and has a large capacity, so this soil has a low bearing capacity when wet. Potential swelling and shrinkage can occur due to changes in soil volume caused by changes in the level of liquid in the soil cavity. Soil swelling and shrinkage can cause damage to the building structure. Helmut is a blend of chemicals that act as soil stabilizers, such as lime and polymers. Helmut is a new chemical ingredient being developed by researchers. The soil stabilization method was to mix the soil with additives such as Helmut. The mixing of the original Balikpapan soil with the Helmut additive in the laboratory was manually done by adding the additive materials at 1, 2, 4, 6, 8, and 10% to the dry weight ratio of the soil and the optimum moisture content. The results showed that the Balikpapan soil had good physical and mechanical properties; the potential for shrinkage was also low, as indicated by a low activity value of A = 0.365 and a shrinkage limit of 16.99%. Soil stabilized with Helmut additives showed improved physical and mechanical properties, and soil activity decreased.
Co-Authors Muntaha, Moh Wahyuni, Fitria