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All Journal Jurnal Teknik Sipil Pillar of Physics: Jurnal Berkala Ilmiah Fisika
- Hamdi
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Compressive Strength Analysis of Mortar Made from Volcanic Sand in Nagari Aia Angek Based on Magnetic Mineral Content Amirullah, Fajar Fikri; Hamdi, -; Dwiridal, Letmi; Amir, Harman; Syafriani, -; Ratnawulan, -
PILLAR OF PHYSICS Vol 17, No 1 (2024)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/15247171074

Abstract

Mortar is a binder or adhesive with a standard viscosity of ingredients (water, cement, and sand). Mortar made has strength, mortar strength is measured using Cement Compression testing machine. Sand in mortar making contains magnetic minerals such as magnetite (Fe3O4) or Fe2+3Fe+2O4-2, hematite mineral (α-Fe2O3) which will be measured for magnetic susceptibility value using Bartington Magnetic Susceptibility Meter Sensor Type B (MS2B). To determine the concentration of magnetic minerals and their relationship with mortar compressive strength, the rock magnetism method was used. Measurement of sand samples of Kamumuan River, Sungai Limau District using Bartington Magnetic Susceptibility Meter Sensor Type B (MS2B) by categorizing sand into 3 treatment, namely Addition of magnetic minerals (PTM) with χLF value 3863.3 x 10-8m3/kg and χFD (%) 0.72, reduction of magnetic minerals (PKM) with χLF value 1920 x 10-8m3/kg and χFD (%) 0.79, normal magnetic minerals (PM) with χLF value 2334.7 x 10-8m3/kg and χFD (%) 0.62. The sample has a grain type that is almost no superparamagnetic grain and has antiferromagnetic properties. Samples grouped by treatment were made into mortar and tested using a cement compression testing machine with the results of mortar compressive strength, namely ATM of 49.4 Kg/cm², AKM of 46.6 Kg/cm², and AM 52.3 Kg/cm². Based on the analysis conducted, the magnetic minerals contained in the sand affect the results of the compressive strength of the mortar, the higher the susceptibility value in the sand, the stronger the compressive strength of the mortar
Compressive Strength Analysis of Mortar Made from Volcanic Sand in Nagari Aia Angek Based on Magnetic Mineral Content Sumanti, Syahputri; Hamdi, -; Akmam, -; Amir, Harman; Syafriani, -; Ratnawulan, -
PILLAR OF PHYSICS Vol 17, No 1 (2024)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/15122171074

Abstract

Compressive strength testing is carried out on mortar made from a mixture of sand, cement and water. Mortar is one of the construction materials in building structures that has the main function as a material for construction parts. The compressive strength test is useful for measuring and knowing the strength of objects against compressive forces. The method used in this research is rock magnetism to determine the abundance of magnetic minerals and compressive strength testing to determine the relationship of compressive strength results to the magnetic minera content of Nagari Aia Angek volcanic sand. Volcanic sand is measured using a Bartington Susceptibility Meter Type MS2B with 3 forms of mineral separation treatment, namely Magnetic Mineral Reduction (PMM) with a value of χlf  505,99 x10 m-83 /kg, χfd (%) 2.72%, Additional Magnetic Minerals (TMM) with a value of χlf 1026.72 x10 m-83 /kg, χfd (%) 2.14%, and No Treatment (TP) with a value of χlf 853.98 x10 m-83 /kg, χlf (%) 2.16. The results of testing the compressive strength of mortar using Compression Testing Mechine on 3 volcanic sand treatments were obtained (PMM) with a value of 169.14 kg/cm2, (TMM) with a value of 147.11 kg/cm2, and (TP) with a value of 141.81 kg/cm2. The magnetic properties of volcanic sand samples are antiferrimagnetic and have superparamagnetic mixed grains and coarse grains. There is a relationship between the compressive strength value of mortar and the concentration of magnetic minerals, the higher the compressive strength value, the higher the χfd (%) value obtained
EVALUASI JARINGAN JALAN UNTUK MENUNJANG KAWASAN STRATEGIS DI KOTA SINGKAWANG Hamdi, -
Jurnal Teknik Sipil Vol 17, No 1 (2017): JURNAL TEKNIK SIPIL EDISI JUNI 2017
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (139.034 KB) | DOI: 10.26418/jtst.v17i1.23868

Abstract

Kota Singkawang memiliki potensi dan daya saing yang cukup tinggi untuk berkembang di kawasan Utara Provinsi Kalimantan Barat sebagai Sentra Perdagangan (bisnis), Industri, Jasa, Pendidikan, dan Pariwisata bagi Kabupaten sekitarnya. Jaringan Jalan salah satu prsarana subsektor perhubungan yang merupakan suatu sistem transportasi yang mempunyai peran penting dalam mendukung ekonomi, sosial budaya, lingkungan, politik, dan pertahanan. Sejak terbentuknya Pemerintah Kota Singkawang berdasarkan Undang-undang nomor 12 Tahun 2001 hingga pada saat ini belum pernah dilakukan evaluasi terhadap kinerja jaringan jalan. Seiring pertumbuhan penduduk dan perkembangan pembangunan perlu dilakukan evaluasi jaringan jalan untuk kelancaran arus lalu lintas angkutan darat guna   mendukung pergerakan transportasi ke kawasan-kawasan strategis di Kota Singkawang. Hal tersebut untuk memberikan solusi kepada Pemerintah Kota Singkawang dalam melaksanakan pembangunan berdasarkan skala prioritas sehingga dapat memberikan solusi penanganan terhadap permasalahan yang ada sekarang maupun dimasa yang akan datang.Kata-kata kunci: kawasan strategis, jaringan jalan, prioritas
Co-Authors Akmam Akmam Amirullah, Fajar Fikri Harman Amir Letmi Dwiridal Ratnawulan . Sumanti, Syahputri Syafriani, -