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PILAR
Published by Politeknik Negeri Sriwijaya
ISSN : 19076975     EISSN : 27222926     DOI : -
Core Subject : Science, Social, Engineering,
Civil Engineering, Building, Construction & Architecture Energy Engineering Environmental Science Transportation
Jurnal Pilar adalah jurnal dibidang Teknik Sipil dengan Bidang kajian : Sumber Daya Air Manajemen Rekayasa Geoteknik Struktur Transportasi
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 162 Documents
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PERANCANGAN JEMBATAN I GIRDER DAN TRUSS SISTEM KOMPOSIT BENTANG 110 METER LAHAT SUMATERA SELATAN Nurcahaya; Shapiyah, Sara; Marpaung, Raja; Lina Flaviana Tilik
PILAR Vol 19 No 2 (2024): Pilar: September 2024
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v19i2.9485

Abstract

A bridge is a construction that connects two or more separate areas. Bridges owned by PT. Bara Alam Utama is located in Banjarsari, Lahat Regency, South Sumatra. This bridge is used as an alternative way to bring mining products in the form of coal to the storage station. The total length of the bridge is 110 meters. This bridge is divided into 3 segments, namely the first segment is the beam I bridge, the second segment is the steel frame bridge and the third segment is the beam I bridge. The beam I bridge has a length of 25 m and the steel frame bridge has a length of 60 m. This bridge system uses a composite system of a combination of concrete and steel frames. The planning includes the superstructure and the substructure. From the results of the sondir test, the abutments and pillars are not able to withstand the sliding bearing capacity, therefore piles with a spunpile type with a diameter of 80 cm are used. Bridge planning is guided by RSNI T-12-2004, RSNI T-03-2005, SNI 2833-2016, SNI 1725-2016 and other library sources.
PERENCANAAN GEOMETRIK DAN TEBAL PERKERASAN KAKU PADA JALAN SIMPANG KOLAM-SIMPANG SEMAMBANG BARU Isranur Annisa; Wulan, Wulanda Aprillia; Andi Herius; Akhmad Mirza
PILAR Vol 19 No 2 (2024): Pilar: September 2024
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v19i2.9541

Abstract

The government plans to build an alternative road at Simpang Kolam – Simpang Semambang Baru in Musi Rawas Regency, South Sumatra, to address the increasing traffic volume. This road is designed as a Class II A collector road with a planned speed of 80 km/h. The geometric design planning includes horizontal alignment, vertical alignment, and pavement using 25 cm thick rigid pavement, 12.5 cm lean concrete, and a 20 cm subbase layer. The construction will take 207 working days. Keywords : Road,Cost,Geometric,Design
A Pengaruh Penggunaan Limbah Styrofoam Terhadap Kuat Tekan Beton: Pengaruh Penggunaan Limbah Styrofoam Terhadap Kuat Tekan Beton Demanda Prajika; Selpi, Selpi Herlina; Bastoni Hassasi; Lina Flaviana Tilik; Tri Kurnia Rahayu.J
PILAR Vol 20 No 1 (2025): Pilar: Maret 2025
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v20i1.5337

Abstract

Concrete is a structural material that is commonly used in the construction of buildings, roads, bridges and others. Concrete has a weakness, namely its specific gravity is high enough so that the dead load on a structure becomes large and the tensile strength is weak. The purpose of this study was to determine the effect of using Styrofoam waste on the compressive strength of concrete. This study uses Styrofoam waste as a partial substitution of the volume of coarse aggregate and fine aggregate with variations of 0% 5%, 10%, 15%, 20%, 25%, 30%, and 35% by using K-300 concrete quality and concrete. cube-shaped test with a size of 15 cm x 15 cm x 15 cm totaled 48 test objects. The compressive strength test was carried out at the age of 14 and 28 days of treatment. From the test results, the compressive strength of normal concrete at the age of 28 days is 318.81 kg/cm3, while after using Styrofoam waste the compressive strength is 179.50 kg/cm3 (5% Styrofoam), 162.72 kg/cm3 (10% Styrofoam), 142.15 kg/cm3 (15% Styrofoam), 103.94 kg/cm3 (20% Styrofoam), 80.32 kg/cm3 (25% Styrofoam), 64.71kg/cm3 (30% Styrofoam), and 59.95 kg/cm3 (35% Styrofoam). Based on the test results show that the addition of Styrofoam waste causes the compressive strength of concrete to decrease as the percentage of Styrofoam waste increases.
PENGARUH PENGGUNAAN LIMBAH BETON SEBAGAI SUBSTITUSI AGREGAT KASAR TERHADAP KUAT TEKAN BETON Sopia, Yoselina Fhilo; Pinda Oktadiance; M. Sazili Harnawansyah; A. Fuad. Z
PILAR Vol 20 No 1 (2025): Pilar: Maret 2025
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v20i1.5372

Abstract

The development of the current era of globalization requires a new technology that canreduce and utilize concrete waste. Utilizing concrete waste is one of the very effective efforts for the manufacture of new concrete. This study was conducted to determine the effect of the use of concrete waste as a substitution of coarse aggregates on the compressive strength of concrete. By using the plan quality fc'22.5 mpa and using a slump of 60-180 mm. The variations used in thestudy were 25%, 35%, and 45% of the total test objects were 36 pieces and used cylindrical molds. From the results of the study showed that at the age of 28 days, the results of testing fc' average concrete mixture of concrete waste every 10% increased. Fc' at 25% variation of 22.54 mpa, 35% at 23.11 mpa and 45% at 24.05 mpa, but not exceeding the normal concrete average fc' of 24.52 mpa but already meeting the quality of the fc' 22.5 mpa plan.
PERENCANAAN GEOMETRIK DAN TEBAL PERKERASAN KAKU JALAN TALANG PADANG TINGGI STA 0+200 – STA 8+400 KABUPATEN LAHAT SUMATERA SELATAN Arif, Muhammad; Haula Lodiosi; Ibrahim; Kosim
PILAR Vol 20 No 1 (2025): Pilar: Maret 2025
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v20i1.9672

Abstract

The construction of Talang Padang Tinggi Road is one of the efforts to connect and optimize the movement of traffic both goods and people from the capital city of Lahat Regency to points of economic activity in the Pajar Bulan District, Jarai District, and surrounding areas that have potential for agribusiness and agro-industry without having to go through the Pagaralam City area. To plan the road geometrics, the appropriate regulations are used the Road Geometric Design Guidelines No.13/P/BM/2021. Rigid pavement planning used Road Pavement Design Manual No.02/M/BM/2017. The planning results of Talang Padang Tinggi Road STA 0+200 – STA 8+400 Lahat Regency are classified as class II Collector roads with a plan speed of 70 km/hour. On this road there are 8 bends including, 4 Full Circle bends and 4 Spiral Circle Spiral bends. This road section uses a rigid pavement layer with concrete quality of K-350 and layer thickness of 25 cm, while the foundation layer uses class A aggregate with a thickness of 15 cm. The total estimated cost incurred is IDR 80.001.619.000,00 (eighty billion one million six hundred nineteen thousand rupiah).
B PENAMBAHAN KALSIUM KARBONAT (CaCO3) DAN MAGNESIUM KLORIDA (MgCl2) TERHADAP STABILISASI DAYA DUKUNG TANAH LEMPUNG bella agustin; Vivi Septiani; Ahmad Syapawi; Ricky Ravsyan Alhafez
PILAR Vol 20 No 1 (2025): Pilar: Maret 2025
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v20i1.11053

Abstract

Soil has high plasticity, expands when air content increases, shrink when conditions are dry. This property causes damage to constructions. So efforts are needed to improve it by increasing the stabilization of the soil itself. In this research, tests were carried out on clay soil originating from the Air Batu area, Banyuasin by adding a variety of mixed materials in the form of Calcium Carbonate (CaCO3) 2%, 4%, 6%, 8%, 10% of the dry weight of the soil and various mixed materials. In the form of optimum Calcium Carbonate (CaCO3) + Magnesium Carbonate (MgCl2) varying from 2%, 4%, 6%, 8%. Testing was carried out in two stages, namely, fascial properties testing which included air content testing, consistency limits, sieve analysis, hydrometer and specific gravity, then mechanical properties testing which included compaction testing, CBR (California Bearing Ratio), the research results showed that the addition of calcium carbonate (CaCO₃) has an effect on stabilizing clay soils. If the percentage of added calcium carbonate (CaCO₃) is greater, the value of the optimum water content will decrease further, while the addition of magnesium chloride (MgCl₂) to the soil is not suitable for stabilizing the soil.
Pengaruh Variasi Serbuk batu Split sebagai aplikasi pemanfaatan Limbah Terhadap Karateristik Kuat Tekan Mortar: Pengaruh Variasi Serbuk batu Split sebagai aplikasi pemanfaatan Limbah Terhadap Karateristik Kuat Tekan Mortar Trikopal, Iqbal; Yudid Jonathan; Zainuddin Muchtar; Kiky Rizky Amalia
PILAR Vol 20 No 1 (2025): Pilar: Maret 2025
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v20i1.11054

Abstract

This research aims to study the utilization of residual stone powder from stone crushers as a substitute for sand in mortar mixtures and to analyze the effect of stone dust variations on the compressive strength characteristics of mortar. The stone powder variations used are 0%, 22%, 26%, 30%, 34%, and 38%, with a total of 72 samples. Compressive strength testing was conducted at 14 and 28 days of age with immersion using PDAM water and swamp water. The results showed that the optimal substitution of stone powder is between 22% - 36%. The highest compressive strength was obtained at a 22% variation with a value of 14.21 MPa (PDAM water) and 13.71 MPa (swamp water). Conversely, the lowest compressive strength was recorded at a 38% variation with a value of 6.15 MPa (PDAM water) and 5.75 MPa (swamp water). Immersion using PDAM water (pH 6.34) produced higher compressive strength values compared to swamp water (pH 4.36), indicating that water pH affects the final results of the mortar. This study recommends the use of stone powder as a sand substitute in mortar production to achieve good quality.
PENGARUH VARIASI SELIMUT BETON TERHADAP KUAT LENTUR BALOK BERTULANG BAJA RINGAN PROFIL C Indrawan, Akbar; Bagaskara, M Kevin; Suhadi, Suhadi; Subrianto, Agus
PILAR Vol 20 No 2 (2025): Pilar: September 2025
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v20i2.5938

Abstract

Concrete is one of the most widely used construction materials due to its ease of production and relatively low cost. However, it has several drawbacks, such as brittleness and low tensile strength. This study aims to investigate the effect of concrete cover thickness on the flexural strength of reinforced concrete beams using cold-formed steel C-profile reinforcement. The specimens were concrete beams measuring 150 × 150 × 700 mm with six variations: a control beam (B0) and beams with cover thicknesses of 8.6 mm (B1), 30 mm (B2), 45 mm (B3), 60 mm (B4), and 75 mm (B5). After 28 days of curing, the specimens were tested for compressive strength and flexural strength. The results indicate that increasing the cover thickness leads to a reduction in flexural strength. The highest average flexural strength was obtained at 8.6 mm cover thickness (13.1 MPa), while the lowest was observed at 75 mm cover thickness (5.9 MPa). Therefore, the use of cold-formed steel C-profile reinforcement can improve beam performance, but the cover thickness must be carefully considered to achieve optimal flexural strength
ANALISA PERHITUNGAN DINDING PENAHAN TANAH PEKERJAAN PENGENDALIAN BANJIR SUNGAI KEDUKAN KECAMATAN GANDUS KOTA PALEMBANG Muhammad Prasetian Idha; Hidayat, Ahmad
PILAR Vol 20 No 2 (2025): Pilar: September 2025
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v20i2.7802

Abstract

A retaining wall functions to resist soil mass and prevent landslides caused by rainfall, soil weight, or other external loads. Currently, retaining wall structures are widely applied in civil engineering projects, although their use has been known since ancient times. This study examines safety factors including soil bearing capacity, shear force, and stability against overturning. The objective is to analyze the causes of retaining wall failure and to design the reconstruction of the collapsed section. The analysis results indicate that the existing retaining wall is not stable against shear, with a value of 1.28 < 1.5. Therefore, a redesign was carried out using a gravity retaining wall with a vertical back face, which is suitable for high walls. From this design, shear stability of 1.67 > 1.5 and overturning stability of 3.9 > 1.5 were obtained, thus declared safe.
PEMETAAN KONDISI GEOGRAFIS DAN ASET DESA GARAWANGI KABUPATEN MAJALENGKA, UNTUK PERENCANAAN DESA BERKELANJUTAN Lutfi Fais, M; Virgiawan, Muhammad; Septi Anggraini, Tania
PILAR Vol 20 No 2 (2025): Pilar: September 2025
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/pilar.v20i2.11109

Abstract

This study aims to analyze the geographical conditions and village assets in Garawangi Village, Sumberjaya District, Majalengka Regency, as the basis for sustainable development planning. The research is motivated by the fact that Garawangi Village holds a strategic position for sustainable spatial development. The data used include high-resolution satellite imagery from SAS Planet, the National Digital Elevation Model (DEMNAS), and administrative boundary shapefiles of the village. The data processing method was carried out in three stages: topographic analysis (contours and slope gradients), land cover classification using the supervised classification method, and village asset mapping through geotagging techniques. The results of this study indicate that approximately 70% of the village area consists of flat land, around 20% is gently sloping, and the remainder is undulating, with an elevation ranging from 29 to 63 meters above sea level. Land cover is dominated by agricultural/plantation areas (about 60%), followed by tree vegetation, water bodies, built-up areas, and vacant land. Asset mapping shows that village facilities are concentrated in the settlement center.

Page 16 of 17 | Total Record : 162

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