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Syahrul Sariman
Program Studi Teknik Sipil, Fakultas Teknik, Universitas Bosowa
Civil Engineering, Building, Construction & Architecture Engineering Materials Science & Nanotechnology

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Analisis Kuat Tekan Dan Kuat Lentur Beton Akibat Reduksi Semen Dengan Silicafume Dan Penggunaan Pasir Besi Dengan Zat Tambah Superplasticizer Aryanto Kadang Kassa; Syahrul Sariman; Eka Yuniarto
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.4623

Abstract

The construction industry is currently facing several challenges, one of which is the increasing use of cement in large quantities which also has a negative impact on the environment. To overcome these challenges, one solution that can be applied is to reduce cement in the concrete mixture. Cement reduction can be done by using pozzolanic materials such as silica fume. In addition to silica fume, the use of iron sand can also be a good alternative to reduce the use of silica sand in the concrete mixture. In this study, a normal concrete compressive strength design of 25 MPa was used with the mixing method carried out by partial replacement of cement by silica fume by 10% accompanied by substitution of sand and iron sand of 10%, 20% and 30% respectively and the addition of 2% superplasticizer. This study shows that the addition of 2% superplasticizer can increase the compressive strength of concrete using iron sand material. The compressive strength of concrete using 10% iron sand is 25.57 MPa, for 20% it is 26.42 Mpa and for 30% it is 27.48 MPa. For flexural strength also experienced an increase of 10% by 4.53 MPa, 20% by 4.80 MPa and 30% by 5.00 MPa. This study shows that partial replacement of cement with silica fume and the use of iron sand to concrete as a whole causes an increase in compressive strength and flexural strength with the addition of 2% superplasticizer for all percentages.
Pengaruh Penambahan Pupuk Urea Dan Fly Ash Dengan Variasi Pemeraman Pada Tanah Lempung Terhadap Nilai Cbr Dan Permeabilitas Ical Mahenra S; Syahrul Sariman; Arman Setiawan
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.4741

Abstract

Soil is the most important part to support a construction, one of which is clay soil which has a high moisture content so that the CBR of clay soil is low and causes a decrease in soil carrying capacity. This study aims to determine the effect of the addition of urea and fly ash fertilizers on the CBR value and permeability of clay soil. The percentages used in this study are Fly Ash 10% and Urea Fertilizer 10% and 20% plus variations in curing time, namely 7 and 14 days. According to AASHTO, soil is included in the A-7-5 category while according to USCS soil is included in the CH category. The maximum CBR value occurred at the addition of 10% Fly Ash + 20% Urea Fertilizer with 14 days of Curing with a CBR value of 23.89%.while the maximum Permeability Value occurred at the addition of 10% Fly Ash + 20% Urea Fertilizer with 14 days of Curing with a Coefficient value of 0.0151 cm/minute.
Analisis Penambahan Serbuk Batu Karang Dan Kapur Terhadap Nilai CBR Dan Permeabilitas Tanah Lempung Andi Adil Batara Idhang; Syahrul Sariman; Eka Yuniarto
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.5000

Abstract

Clay is a type of soil that has a low bearing capacity, so it needs to be stabilized to improve its quality as a road foundation. This research aims to analyze the effect of the addition of coral powder and lime on the value of California Bearing Ratio (CBR) and permeability of clay soil. The research was conducted in the laboratory using a mixture variation of 5% coral powder and lime with variations of 5%, 10%, and 15%. Tests were carried out on soil mechanical properties, especially CBR and permeability tests. The results showed that the addition of coral stone powder and lime increased the CBR value and decreased the permeability coefficient of clay soil. The highest CBR value was obtained in a mixture of 5% coral powder and 15% lime, with a significant increase compared to the original soil. The novelty of this research lies in the use of coral powder as a soil stabilization material combined with lime, which proved effective in increasing the strength of clay soil. The results of this study can be applied to road construction projects in areas with less stable clay soil characteristics. from this study it is concluded that the combination of coral powder and lime can increase soil bearing capacity and decrease permeability, making it suitable for use in soil stabilization in infrastructure projects.
Pemilihan Konstruksi Penaggulangan Longsoran Atas Pada Ruas Jalan Poros Palopo - Bastem - Toraja Desa Bonglo, Kecamatan Bastem Utara Citra Angela; Syahrul Sariman; Eka Yuniarto
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.5042

Abstract

The Palopo-Bastem-Toraja axis road that crosses mountainous and valley areas in North Bastem Sub-district has sandy loam soil conditions that tend to be unstable and prone to landslides. Field observations show that there are eight landslide-prone points along the Latuppa-Bastem road section, with a major landslide occurring in Bonglo Village on February 26, 2024. This landslide was triggered by high rainfall intensity, lack of road safety structures, and caused material losses and casualties. This research aims to analyze the physical properties of the soil at the landslide site as a basis for retaining wall planning. Soil testing in the laboratory showed the soil at location 1 point 1 clay mixed with sand (0 - 1 meter), point 2 silt mixed with gravel (2 - 10 meters), and at location 2 point 1 clay mixed with sand (0 - 3 meters), point 2 silt mixed with gravel (3 - 10 meters). Slope stability analysis using Bishop's method indicates a safety factor of 0.98 < 1.05, indicating the condition of the slope is unsafe. The retaining wall chosen in this research is the Cantilever Wall, after designing the dimensions of the retaining wall, by controlling the safety of overturning, shearing and bearing capacity. From the design results, the rolling FK is 4.487, the sliding FK is 2.812, and the bearing capacity is 3.089, which shows the safety figures required in the SNI geotechnical design requirements
Karakteristik Campuran Aspal HRS-WC Dengan Menggunakan Agregat Batu Gunung Kandora Dengan Variasi Agregat Halus Di Kabupaten Tana Toraja Michael Mangontan; Syahrul Sariman; Abdul Rahim Nurdin
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.5063

Abstract

Hot Rolled Sheet (HRS) is one type of hot asphalt mixture consisting of a mixture of fine aggregate, coarse aggregate, filler, and asphalt. The results of the kandora mountain stone aggregate wear test are 26.78%, the combined specific gravity is 2.59. The design of the HRS-WC mixture uses graphical and analytical methods to obtain the aggregate composition of the HRS-WC asphalt mixture that meets the specifications, so that the optimum plan asphalt content (Pb) is 6.5%. 7%, 7.5%, 8%, 8.5% with KAO value of 7%. The number of test specimens was 30 samples using asphalt penetration 60-70. The results of conventional marshall testing research with Pb 7.5% are density 2.30, VIM 3.29%, VMA 17.53%, FVB 81.22%, stability 880.96 kg, flow 2.93, and marshall Quotient 302.60. Testing fine aggregate variation with KAO using 20% sand mixture obtained density 2.27, VIM 4.85%, VMA 18.41%, FVB 73.66%, stability 653.88kg, flow 3. 37, and marshall quotient 195.69, 50% sand mixture obtained density results 2.27, VIM 4.85%, VMA 18.41%, FVB 73.66%, stability 653.88kg, flow 3.37, and marshall quotient 195.69 The remaining marshall strength index test was obtained at 91.01%.  Based on the results of aggregate characteristics testing and Marshall testing, the Kandora Kandora Mountain stone meets the 2018 Bina Marga specifications for HRS-WCHot Rolled Sheet (HRS) mixtures are one type of hot asphalt mixture consisting of a mixture of fine aggregate, coarse aggregate, filler, and asphalt.
Pemanfaatan Batu Sungai Maiting Toraja Utara Pada Campuran Laston AC-BC Dengan Variasi Temperatur Pemadatan Orion Yeheskel Samaa Sarira; Syahrul Sariman; Abdul Rahim Nurdin
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.5116

Abstract

Damage to highways in Indonesia is often caused by the inadequate quality of asphalt compaction, which does not conform to the optimum temperature during on-site construction. Asphalt compaction is highly dependent on temperature to ensure the mix achieves maximum density, which strengthens the durability and service life of the road. This study explores the use of Maiting River stones from North Toraja Regency as materials in asphalt concrete binder course (AC-BC) mixtures, aiming to determine the characteristics and feasibility of the material.The research methods include material sampling, aggregate characteristic testing, mix design planning, specimen preparation, conventional Marshall testing, determining the optimum asphalt content (OAC), compaction temperature variations, and Marshall Immersion testing.The results show that the aggregate characteristics of Maiting River stones from North Toraja Regency indicate that the AC-BC mixture with 60/70 penetration asphalt comprises 58.75% coarse aggregate, 36.99% fine aggregate, and 4.27% filler, resulting in a design asphalt content of 5%. In this study, the optimum asphalt content used was 5.50%, with compaction temperature variations of 150°C, 180°C, and 200°C. The test results show that the optimum compaction temperature for the asphalt mixture (AC-BC) is 150°C, achieving Stability of 1575.89%, Flow of 3.15%, FMA of 15.08%, VIM of 3.12%, VFB of 79.29%, and MQ of 499.94%. These values meet the standards specified in the 2018 Bina Marga specifications.
Penggunaan Vermikulit Dan Kapur Pada Kuat Tekan Bebas Dan Kuat Geser Tanah Lempung Yosrin Adi Saputrah; Syahrul Sariman; A. Rumpang Yusuf
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.5117

Abstract

Clay soil is a soil that has a high potential for shrinkage if there is a change in the soil water content system. Expansive soil has a large shrinkage. Stabilization of clay soil is an important step in geotechnical engineering to improve the physical and mechanical properties of the soil, especially in supporting building structures. This study aims to evaluate the effect of adding vermiculite and lime on the unconfined compressive strength (UCS) and shear strength of clay soil. Vermiculite, as a mineral additive material that has high expansion and cation exchange capacity, combined with lime which is chemically able to improve soil stability and strength through pozzolanic reactions. One method of improving expansive clay soil is by adding vermiculite and lime as soil stabilization materials. In this study, shear strength and compressive strength tests will be carried out on soil samples stabilized with vermiculite and lime. This study used 6% vermiculite and variations of lime at 0%, 5%, 10%, 15% which were then tested using the UCS test and direct shear test. The results of the study showed that the highest shear strength, cohesion, and friction angle values were obtained with the addition of 6% vermiculite and 15% lime, namely 0.9247% for shear strength, 0.4392% for cohesion, and 27.57% for friction angle. Similarly, in the compressive strength test, the highest increase occurred with the addition of 6% vermiculite and 15% lime with a stress value of 1.155%.
Alternatif Perancangan Pondasi Tiang Pancang Jembatan Maros : Jalur Akses Menuju Stasiun Kereta Api Maros II Salsa Purmadani Fatia; Syahrul Sariman; Eka Yuniarto
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.5136

Abstract

This research discusses the alternative design of pile foundations on the Maros Bridge, as an access route to the Maros II Railway Station. In the existing foundation condition used is the bored pile type with a total of 18 piles for each abutment, which has a bearing capacity of 1038.02 kN (abutment 1) and 1400.18 kN (abutment 2) with a diameter of 0.8 m respectively. This alternative pile foundation design considers the comparison of the number, depth, and diameter of the foundation to achieve adequate bearing capacity and determine the shifts that occur using the Displacement Method. Based on the results of the design of the pile foundation design requires 22 piles with a diameter of 0.5 m for each abutment, with a pile foundation depth of 7 m at abutment 1 and 12 m at abutment 2 and with a horizontal shift value (Hi) 968.38, vertical (Vi) 2501.66, and moment (Mi) 3939.02. The bearing capacity of a single pile obtained is 788.3 kN for abutment 1 and 1278.52 kN for abutment 2, so the total bearing capacity that can be borne by the entire foundation in carrying the load of the upper structure has met the required requirements. The configuration of the existing bored pile foundation is 18 piles, while the alternative configuration plan results in a pile configuration of 22 piles with planned dimensions that are able to withstand the loads and forces acting on the bridge even though it requires a larger number of piles compared to the existing bored pile foundation.
Co-Authors A. Rumpang Yusuf Abdul Rahim Nurdin Andi Adil Batara Idhang Arman Setiawan Aryanto Kadang Kassa Citra Angela Eka Yuniarto Ical Mahenra S Michael Mangontan Orion Yeheskel Samaa Sarira Salsa Purmadani Fatia Yosrin Adi Saputrah