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All Journal Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil
Shaputra, Muhammad Rio Eka
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Transportation

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PENGARUH PENAMBAHAN VERMIKULIT TERHADAP KUAT LENTUR BETON MUTU RENDAH DENGAN SIMULASI BANJIR AIR LAUT Syahril, Syahril; Mujiman, Mujiman; Prayogo, R Desutama Rachmat Bugi; Riandi, Muhammad Raihan; Uli, Pita; Artanti, Lintang D.; Shaputra, Muhammad Rio Eka
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 28, No 2 (2023): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v28i2.5240

Abstract

The condition of high tides causing flooding or what is called tidal flooding is a condition that has a negative impact on the surrounding area, especially construction buildings. Construction buildings that are submerged in sea water can experience corrosion in the building structure. The addition or substitution of certain ingredients that can minimize the influence of minerals and salts contained in sea water, such as vermiculite, can be an alternative to this problem. Vermiculite material has the ability to absorb water and can extract heavy metal salts from water. This research was carried out by adding vermiculite to the concrete mixture at 0% (normal concrete), 12%, 24% and 36%, which was then tested on fresh concrete mixture (slump and bulk density testing). The test object used is in the form of a block with dimensions of 100mm × 100mm × 500mm. Concrete flexural strength testing was carried out on test objects that had been soaked using sea water and ordinary water as a comparison. The highest flexural strength value of concrete was in the mixture with a percentage value of 36%, namely 2.91 MPa for concrete submerged in sea water and 2.86 MPa for concrete submerged in plain water. The addition of vermiculite material can increase the flexural strength value of concrete along with the percentage level of the vermiculite mixture.
PERBAIKAN NILAI KADAR AIR DAN INDEKS PLASTISITAS TANAH LEMPUNG LUNAK MENGGUNAKAN BAHAN TAMBAH EXPANDED POLYSTYRENE (EPS) DAN RESIDIUM CRACKING CATALYST 15 (RCC 15) shaputra, muhammad rio eka; Syahril; Indra Noer Hamdhan; Geni Firuliadhim
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 30 No. 1 (2025): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v30i1.6424

Abstract

The uneven distribution of development in each region can result in construction on land with poor characteristics. One of the soils that has weak characteristics is soft clay. Soft clay has weak characteristics, such as relatively high water content and plasticity index (PI), so it needs to be stabilized to improve its bearing capacity before being used in construction. This study aims to examine the effect of adding Expanded Polystyrene (EPS) which is a fabricated material with Residium Cracking Catalyst 15 (RCC15) which is a waste product of oil processing from PT. Pertamina on improving the characteristics of soft clay. The specimens from Cililin, Bandung Regency, has a soft inorganic clay (CH) with a clay content of 61% and a water content of 37.945%. Test specimens were made with variations in the addition of EPS of 0.4% and RCC15 of 20%, 25%, and 30%. The results of the property index test showed that the addition of RCC15 can increase the water content and plasticity index (PI) value, with the optimum value at a mixture of 0.4% EPS and 25% RCC15. The impact of using EPS and RCC15 as additives has the potential to increase the stability of soft clay, making it suitable for use in construction.
Co-Authors Artanti, Lintang D. Geni Firuliadhim Hamdhan, Indra Noer Mujiman Mujiman, Mujiman Prayogo, R Desutama Rachmat Bugi Riandi, Muhammad Raihan S Syahril Syahril Uli, Pita