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MODELING STUDY AND NUMERICAL ANALYSIS OF FLEXIBLE PAVEMENT IN SOFT SOIL BASED ON FINITE ELEMENT METHOD Yonas Prima Arga Rumbyarso; Dohar Sidabutar; Gali Pribadi
INTERNATIONAL JOURNAL OF MULTI SCIENCE Vol. 6 No. 01 (2026): INTERNATIONAL JOURNAL OF MULTISCIENCE - JANUARY-APRIL 2026
Publisher : CV KULTURA DIGITAL MEDIA

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Abstract

Road construction with flexible pavement system on soft clay subgrade faces technical constraints in the form of low bearing capacity, high compressibility, and sensitivity to changes in moisture content, so this study evaluates stress-strain response using finite Element Method (FEM) through two-dimensional modeling (2D) consisting of a layer of clay soil 57 cm thick and a layer of flexible pavement 3 cm thick, with, in three variations of moisture content, namely 19%, 36%, and 53%, where the results of the analysis show that the increase in water content causes an increase in effective stress from 10.57 kN/m2 at 19% to 11.54 kN/m2 at 53%, while the displacement value is relatively stable at around 0.2046 mm, so it can be concluded that although the variation of water content affects the stress distribution, the impact on total deformation is relatively small and flexible pavement is still able to maintain deformation stability in the problematic soil conditions.
Penambahan Serbuk Kayu Kamper terhadap Kuat Tekan Beton Lydia Darmiyanti; Gali Pribadi; Achmad Pahrul Rodji
Bentang : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Vol 9 No 2 (2021): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil
Publisher : Universitas Islam 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/bentang.v9i2.2861

Abstract

Sawdust waste from the furniture industry should be considered. Nowadays, the increased demand for furniture is in line with the increase in sawdust waste produced. Therefore, it is necessary to make use of sawdust to protect environment. An alternative use is the addition of sawdust as the concrete mixture. Cellulose and hemicellulose compounds are compounds contained in wood powder, where these compounds can provide additional bonding between particles in the cement and sand mixture in concrete. Therefore, concrete can be stronger as well as more water resistant, hence it can be used for a specific purpose in constructions. This study aims to analyze the compressive strength of concrete due to the addition of sawdust as an organic fiber in the concrete mixture with the percentage of 0.25%, 0.50%, 0.75% and 1% as substitution of sand. Organic fibers as additives in concrete are being developed until recently. The proposed concrete was 25 MPa quality. Result showed the increase in the compressive strength of concrete by 0.98% in 1% wood powder mixed at 28 days of concrete age.