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All Journal Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Potensi : Jurnal Sipil Politeknik JOURNAL OF SCIENCE AND APPLIED ENGINEERING Jurnal Ilmiah Rekayasa Sipil Jurnal Teknik Sipil Institut Teknologi Padang Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan
S Syahril
Department Of Civil Engineering, Politeknik Negeri Bandung
Aerospace Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Social Sciences Transportation Other

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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.
Expansive Soil Stabilization Using Mud (Lapindo) and Asphalt Emulsion Resti Meysita Pramaesti; Syahril; Hendry
Potensi: Jurnal Sipil Politeknik Vol. 23 No. 2 (2021): Potensi: Jurnal Sipil Politeknik
Publisher : Department of Civil Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (464.731 KB) | DOI: 10.35313/potensi.v23i2.2549

Abstract

Most of Gedebage area consist of expansive soil and always greatly induce disturbance to structure of foundation. Nature properties of expansive soil is a high plasticity value, low soil shear strength, high swelling, and large potential for shrinkage. One solution for soil improvement is to use an additional material to stabilize this soil. Additional material uses locked emulsion asphalt 8% and mud from Lapindo area in variation of 3%, 6%, 9% and 12%. The results of testing the physical and mechanical properties after stabilization indicates increasing of density value around 68%. Plasticity index tends to decrease until 10% from CBR test. CBR values with curing time of 14 days are 8.1% for unsoaked and by 4.6% for soaked conditions.
Evaluation of Soil Stabilization from Marble Ash Powder and Asphalt Emulsion as Supporting Soil for Logistics Buildings Meita Simanjuntak; Putty Maura Amalia; Geni Firuliadhim; Syahril Syahril
Potensi: Jurnal Sipil Politeknik Vol. 26 No. 2 (2024): Potensi: Jurnal Sipil Politeknik
Publisher : Department of Civil Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/potensi.v26i2.6055

Abstract

This research focuses on improving the bearing capacity of soil by applying soil stabilization methods. Specifically, this research explores the use of a mixture of marble powder ash and emulsified asphalt to improve soil physical properties and increase soil bearing capacity to support logistics buildings such as lime or rice storage warehouses. This research was conducted in Cililin area which has soft clay soil that is unsuitable for construction. Tests were conducted in the laboratory using various compositions of marble dust ash (0%; 2.5%; 5%; 7.5%; 10%) and 6% emulsified asphalt. The tests measure the CBR (California Bearing Ratio) and UCS (Unconfined Compressive Strength) values of the soil. The tests measured the CBR (California Bearing Ratio) and UCS (Unconfined Compressive Strength) values of the soil. The test results showed a direct relationship between increasing marble ash composition with CBR and UCS values, with the highest design CBR value in the unsoaked method being 8% and the maximum qu value being 1.676 kg/cm². However, the desired CBR value of >10% was not achieved in this study. To fulfill this requirement, future studies should consider compositions higher than 10% and for better results can use asphalt emulsion of more than 6%.
Analisis Stabilitas Timbunan Oprit Jembatan Menggunakan Dinding Penahan Tanah dan Bored Pile pada Kondisi Tanah Lunak Dea Maharanie; Syahril Syahril
Jurnal Teknik Sipil Institut Teknologi Padang Vol 13 No 2 (2026): Jurnal Teknik Sipil Institut Teknologi Padang
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jts.2026.V1302.0237-247

Abstract

Oprit jembatan pada kondisi tanah lunak rentan terhadap ketidakstabilan lereng, penurunan konsolidasi yang berlebih. Penelitian ini menganalisis perencanaan oprit Jembatan Cicangor Hilir, Karawang, yang berada di atas lapisan tanah lunak. Penyelidikan tanah pada empat titik bor (BH-01 hingga BH-04) menunjukkan lapisan tanah lempung lunak setebal 4–6 meter dan tanah keras ditemukan pada kedalaman 4-18 meter. Parameter tanah dari uji SPT dan pengujian laboratorium digunakan sebagai dasar analisis. Pada kondisi tanpa perkuatan, analisis stabilitas menunjukkan bahwa faktor keamanan terhadap guling, geser, daya dukung, dan stabilitas global tidak memenuhi persyaratan minimum, baik untuk kondisi statis maupun gempa. Kondisi ini mengharuskan penerapan sistem perkuatan berupa dinding penahan tanah beton kantilever yang dikombinasikan dengan bored pile berdiameter 600 mm pada oprit sisi Abutmen 1 (Oprit A1). Stabilitas internal dianalisis menggunakan perangkat lunak ASDIP, sedangkan stabilitas global dievaluasi dengan metode elemen hingga pada program PLAXIS model tanah Soft Soil. Setelah perkuatan diterapkan, seluruh kriteria keamanan terpenuhi: faktor keamanan terhadap guling ≥ 2, geser ≥ 1,5, daya dukung ≥ 3, dan stabilitas global ≥ 1,5 untuk kondisi statis serta ≥ 1,1 untuk kondisi gempa. Penurunan konsolidasi tercatat sebesar 0,071 m (S100%), masih dalam batas toleransi 10 cm. Hasil ini menunjukkan bahwa kombinasi dinding penahan tanah kantilever dan bored pile Ø600 mm efektif meningkatkan stabilitas oprit pada kondisi tanah lunak di lokasi tersebut.
Studi Eksperimental Pemanfaatan Limbah Partikel EPS dan Serbuk Cangkang Telur Untuk Komposit Tanah yang Berkelanjutan Syifa Laila Maulida; Tiane Setya; Syahril Syahril
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 14 No 1 (2026): Jurnal Konstruksi dan Infrastruktur Vol 14 No.1 : April 2026
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v14i1.10738

Abstract

Soft clay soil has low bearing capacity and high compressibility, which can cause structural damage. On the other hand, Expanded Polystyrene (EPS) waste and eggshell waste are abundant and difficult to decompose, making them potential materials for sustainable soil stabilization. This study aims to improve the physical and mechanical properties of soft clay by adding EPS particles at 0.45% of the dry soil weight and eggshell powder at 4%, 8%, and 12%. Soil samples were obtained from Mekarmukti Village, West Bandung Regency, then cured for 0–28 days and tested through water content, specific gravity, standard compaction, unconfined compressive strength (UCS), and California Bearing Ratio (CBR) tests. The results showed that the mixture reduced water content, increased density, and improved soil strength. The optimum composition was achieved with soil + 0.45% EPS + 8% eggshell powder, where the unconfined compressive strength increased from 1.631 kg/cm² to 2.662 kg/cm², the unsoaked CBR increased from 2.201% to 4.659%, and the soaked CBR reached 1.458%. The mixture produced lighter, more stable, and easily compacted soil, and is recommended as an environmentally friendly stabilization material for lightweight embankments, bridge approaches, and construction on soft ground.
Co-Authors Achmad Abrar Haziri Aghnia Monica Saniy, Aghnia Monica Agus Suyono Agus Suyono Ambrosio Martins Nuno Artanti, Lintang D. Dea Maharanie Desutama Prayogo Desy Kumalasari Geni Firuliadhim Hendry . Lintang D.A Lintang Dian Artanti Meita Simanjuntak Muchtar Muchtar Muchtar Muhammad Raihan Riandi Mujiman Mujiman Mujiman Mujiman, Mujiman Prayogo, R Desutama Rachmat Bugi Putty Maura Amalia Raihan Muhammad Raihan Riandi Resti Meysita Pramaesti Riandi, Muhammad Raihan Rio Prajudi Shaputra, Muhammad Rio Eka Sihombing, Atmy Verani Rouly Sukamto, Ika Sumiyarsi Syifa Laila Maulida Tiane Setya Togar Sirait Totok Hermawan Uli, Pita