Octada rahman, 112020009 (2026) PENGARUH PENAMBAHAN SERBUK LIMBAH KERAMIK TERHADAP STABILITAS TANAH LEMPUNG EKSPANSIF (OH) PADA NILAI UJI KUAT TEKAN BEBAS. Skripsi thesis, Universitas Muhammadiyah Palembang.

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Abstract

Expansive clay soil is one of the main obstacles in road construction in Karang Agung Village, PALI Regency, due to its high potential for expansion and shrinkage and low bearing capacity. This study aims to evaluate the effect of adding ceramic waste powder (CWP) as a stabilizing material on the physical characteristics and mechanical strength of soil through an unconfined compression test. The research method was conducted experimentally in the laboratory with variations in CWP mixture of 0%, 15%, 16%, and 17% of the dry weight of the soil, and a curing period of 0, 7, and 14 days. The test results showed that the addition of CWP significantly improved the physical properties of the soil, where the Plasticity Index (PI) value decreased dramatically from 19.575% to 12.330% in the 17% mixture. In mechanical testing, the peak strength of the soil was found in the 16% CWP mixture with a curing period of 14 days, which produced a free compressive strength (qu) of 3.92574 kg/cm² or an increase of 581.8% compared to the original soil. Microstructural observation using a Scanning Electron Microscope (SEM) confirmed the formation of Calcium Silicate Hydrate (CSH) and Calcium Aluminate Hydrate (CAH) compounds resulting from pozzolanic reactions that strengthen the bonds between soil particles. However, the addition of CWP at a concentration of 17% actually reduced strength due to the mixture being nonhomogeneous. Based on the 2024 Road Construction Specifications, the use of 16% CWP is considered optimal and suitable for application as a subgrade stabilization material to improve the stability of national and regional roads.

Item Type:	Thesis (Skripsi)
Additional Information:	1. Ir. Nurnilam Oemiati, M.T. 2. Muhammad Arfan, S.T.,M.T.
Uncontrolled Keywords:	Expansive Clay, Ceramic Waste Powder, Unconfined Compressive Strength, Soil Stabilisation, Bina Marga 2024.
Subjects:	Teknik Sipil > geologi teknis (untuk teknik sipil)
Divisions:	Fakultas Teknik > Teknik Sipil (S1)
Depositing User:	Mahasiswa Fakultas Teknik
Date Deposited:	08 May 2026 03:04
Last Modified:	08 May 2026 03:04
URI:	http://repository.um-palembang.ac.id/id/eprint/35917

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