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All Journal Jurnal Teknik Sipil dan Perencanaan Potensi : Jurnal Sipil Politeknik SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Publikasi Riset Orientasi Teknik Sipil (Proteksi) Jurnal Teknik Sipil
Arusmalem Ginting
Universitas Janabadra
Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Materials Science & Nanotechnology Social Sciences Transportation

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Comparison of the Utilization of Fly Ash with Calcium Carbonate as Supplementary Cementitious Materials: Perbandingan Penggunaan Fly Ash Dengan Kalsium Karbonat Sebagai Bahan Tambah Semen Ginting, Arusmalem; Bing Santosa; Imam Syarif Hidayatulloh; Resqi Prananda
PUBLIKASI RISET ORIENTASI TEKNIK SIPIL (PROTEKSI) Vol 7 No 2 (2025): Vol.7 No 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/proteksi.v7n2.p119-124

Abstract

Commonly used supplementary cementitious materials include fly ash and calcium carbonate. Based on this, necessary to study the comparison of the use fly ash with calcium carbonate as supplementary cementitious materials. The addition of cement with fly ash and calcium carbonate is 5%, 10%, 15% and 20% of the weight of the cement. Each variation consists of 2 concrete cylinder specimens, and a total of 18 specimens. The tests carried out were slump value and compressive strength tests. The results of the study showed that the fly ash used is classified as class C pozzolan, while calcium carbonate is not included in pozzolan. The addition of cement with fly ash and also calcium carbonate 5% to 20% increases the slump value. The addition of cement with fly ash produces a lower slump value than the addition of 10% to 20% calcium carbonate, and higher at 5%. The compressive strength of concrete with the addition of cement with fly ash is higher and calcium carbonate is lower compared to normal concrete up to an addition of 20%.. The compressive strength of concrete with the addition of cement with fly ash is higher than the addition of calcium carbonate up to 20%.
Pengaruh Penambahan Serat Sagu Terhadap Kuat Tekan Beton Non Pasir Arusmalem Ginting; Prasetya Adi; Bing Santosa; Mekitizon Kambu
Potensi: Jurnal Sipil Politeknik Vol. 24 No. 1 (2022): 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.v24i1.3677

Abstract

Beton non pasir adalah beton ringan berpori yang dibuat dengan menghilangkan pasir dari campuran beton normal. Beton non pasir dapat digunakan sebagai dinding. Salah satu cara untuk melakukan perkuatan beton adalah dengan penambahan serat. Limbah dari pengolahan sagu yang berupa serat belum dimanfaatkan secara optimal. Penelitian tentang penggunaan serat sagu pada beton non pasir masih jarang sehingga perlu untuk dilakukan. Rasio berat split terhadap semen yang digunakan pada penelitian ini adalah 4, dan faktor air semen 0,35. Penambahan serat sagu 0%, 0,5%, 1,0%, 1,5% dan 2,0% terhadap berat semen. Benda uji berbentuk silinder sebanyak 3 buah setiap variasi, dan dengan jumlah total benda uji 15 buah silinder. Setelah beton non pasir berumur 28 hari dilakukan pengujian kuat tekan. Dari hasil penelitian dapat disimpulkan bahwa: penambahan serat mengakibatkan penurunan workability beton non pasir. Penambahan serat sagu sebesar 0,5% dan 1% meningkatkan kuat tekan. Penambahan serat sagu sebesar 1,5% dan 2% mengakibatkan penurunan kuat tekan. Kuat tekan tertinggi tercapai pada penambahan serat sagu sebesar 0,5%. Penambahan serat sagu sebesar 0,5% sampai 2% tidak signifikan pengaruhnya terhadap berat isi beton non pasir.
Perbaikan Laju Peningkatan Kuat Tekan Beton dengan Air IPAL Industri Beton Siap Pakai Menggunakan Accelerator Prasetya Adi; Arusmalem Ginting; Elin Widiastuti; Dewi Listyowati
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 12 No 1 (2026): February
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol12.no1.a21601

Abstract

The concrete industry is one of the industries that uses large volumes of water. Water is used for the cement reaction process and for cleaning equipment. Wastewater treatment plants (WWTPs) are used to restore water quality before being released into the environment. This study was conducted to determine the suitability of treated wastewater for reuse in concrete production. Using WWTP water as a cement reagent is important for conserving groundwater and supporting the sustainability of the ready-mix concrete industry. Previous research has shown that the disadvantage of using treated wastewater in ready-mix concrete is low initial compressive strength. A practical way to increase initial compressive strength is to use an accelerator. Research is needed to increase initial compressive strength for several concrete grades. The use of water as a cement reagent requires certain quality standards, and the higher the planned concrete quality, the better the water quality required, approaching or equivalent to potable water. The study was conducted on two concrete grades to determine the effect of using wastewater treatment for ready-mix concrete on the properties of the resulting concrete. The concrete's compressive strength was tested using a standard test, using a cylinder with a diameter of 150 mm and a height of 300 mm, and workability was tested using an Abrahms cone. Previous research has shown that the use of treated wastewater affects the speed of the concrete hardening process. Therefore, in this study, an accelerator, an additive, was used to accelerate the cement reaction. The results of the study showed that the accelerator added material increased the quality of 20 MPa concrete by 114.452%, 112.091%, 105.671%, and 103.351% compared to concrete with normal water and increased the quality of 25 MPa concrete by 103.909%, 103.442%, 105.940%, and 108.756% compared to concrete with normal water. The rate of increase in the compressive strength of concrete with wastewater without accelerator and using accelerator can meet the requirements.
Co-Authors Adi, Prasetya Bing Santosa Bing Santosa Dewi Listyowati Eliada Obed Manasye Elin Widiastuti Herman Herman Imam Syarif Hidayatulloh Mekitizon Kambu Mudji Suhardiman Pradikta, Damar Hendra Prasetya Adi Prasetya Adi Prasetya Adi Resqi Prananda Suyono Yundari, Yundari