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Journal : Journal of Geoscience, Engineering, Environment, and Technology

The Effect of Limestone Variations on the Compressive Strength of Clay Soil Stabilized with Pumice Microsilica and Aluminum Hydroxide A. Majid, Budiman; Gaus, Abdul; Adriaty, Yolly; Helda Evita Putri; Rauf, Ichsan
Journal of Geoscience, Engineering, Environment, and Technology Vol. 11 No. 1 (2026): JGEET Vol 11 No 01 : March (2026)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2026.11.1.24976

Abstract

The pozzolanic reaction is a chemical interaction involving calcium hydroxide, silica, and alumina that contributes to the chemical stabilization of soil. An optimized proportion of these three components can yield greater improvements in soil strength compared to the use of a single stabilizing material. This research examines the additional effect of limestone as a calcium source on clay soil stabilized with pumice-based microsilica and hydroxide aluminate. The testing of soil properties in this research follows the American Society for Testing Materials (ASTM) guidelines. The stabilization materials used include pumice, hydroxide aluminate, and limestone. The mechanical behavior of the blend of these three minerals is determined from the findings of the unconfined compressive strength tests, using cylindrical test samples measuring 35 mm in diameter and 70 mm in height. Variations in the addition of lime used to form the mixed matrix were 2%, 4%, and 6% by weight of dry soil. Laboratory test results showed a very significant increase in unconfined compressive strength (qu) compared to natural soil or soil stabilized only with silica and alumina. The optimum value for lime addition in this mixture was 4%, which resulted in a qu value of 52.48 kg/cm².
Co-Authors -, Mustamin A. Majid, Budiman Abdul Hamid Payapo Abdul Hamid Payapo Abdullah, Abdul Madjid Adriaty, Yolly Albanjar, Mutmaina Albar, Abdullah Ali, Ismanto Wahab Amalia, Ema Amelia, Risky Andi Arifah Pasri AR, Ridwan Aris Abdul Bachmid, Ryan Rinaldy R Barmawi, Nurtalia Chaerul Anwar Chairul Anwar Chairul Anwar Djamaluddin, Rudy Edi Susanto Farah Nur Muhammad Farika, Azmy Gilang Ramadan Kololikiye Hairil Hi. Hukum Hakim, Raudha Helda Evita Putri Hernita Pasongli Hi Abbas, Muhammad Yunus Hi Bayan, Ilman Nafiyanto A Hi. Hukum, Hairil Hidayat Batubara, Muizzul Ilham Udin Imran Imran Imran Imran Imran, Imran Inggrayani Anggreni waiola Irnawaty Irnawaty, Irnawaty Irnawaty ST.,MT Ismanto Wahab Ali Ismuddin B Saifuddin Jaelan, Salsabila Jamalun Togubu Kamarullah, Suryawan Kardiman Kardiman Kardiman Kardiman Kardiman Rian Khusna Arif Rakhman, Khusna Arif Kusnadi Kusnadi Liska Novianti Liska Novianti M. Saleh, Muhammad Fauzan M. Saleh, Nur Rifqah Mardiana M Taiyeb Mardianti anti Mardianti anti, Mardianti Marsaoly, Nuramaiyasa Marsaoly, Nurmaiyasa Mohammad Ridwan Fadly Mufti Amir Sultan, Mufti Amir Muh Anshar Amrin Muh. Asrul Musyafir Muhamad Darwis Muhammad Taufiq Yuda Saputra Najamuddin Najamuddin, Najamuddin Nu'man, Nu'man Nur Ali Nuramaiyasa Marsaoly Nurmaiyasa M. Rahim, Mustamin Raudha Hakim Rauf, Ichsan Sabaruddin Sabaruddin S Sabaruddin Sabaruddin Saifuddin, Ismuddin B Samsul Samsul Saputra, Muhammad Taufik Yuda Seniyasmin, Seniyasmin Siswahyudianto Sultan Amir, Mufti Sultan, Thariq Alfaridzi A Sutrisno Putra Syafruddin Syafruddin Thariq Al Faridzi A Sultan Tjaronge M. W., Tjaronge M. Ummu Humaira Mubin Wahab, Iis Hamsir Ayub Wiwik Handayani Yani, Stevi Yudha Saputra, M Taufiq Yuni Damayanti Zainudin Zainudin Zamzam, Zulkifli Zulkarnain Zulkifli Zam Zam