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All Journal REKA RACANA Rekayasa Mesin Journal of Engineering and Management in Industrial System Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil BANGUN REKAPRIMA Jurnal Otomasi Kontrol dan Instrumentasi JITTER (Jurnal Ilmiah Teknologi Informasi Terapan) Prokons: Jurnal Teknik Sipil Construction and Material Journal International Journal of Mechanical Engineering Technologies and Applications (MECHTA) COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat JURNAL POLI-TEKNOLOGI
Pratikto Pratikto
Jurusan Teknik Sipil Politeknik Negeri Jakarta
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Journal : Construction and Material Journal

 1 
PEMANFAATAN LIMBAH GENTENG BETON PADA PAVING BLOCK Pratikto, Pratikto; A, Ginanjar
Construction and Material Journal Vol 1, No 1 (2019): Construction and Material Journal Vol. 1 No. 1 Maret 2019
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Paving block merupakan bahan bangunan yang digunakan sebagai pekerasan permukaan jalan, baik jalan untuk keperluan parkir kendaraan ataupun jalan raya, ataupun untuk keperluan dekoratif pada pembuatan taman. Bahan penyusun paving block adalah semen, pasir dan air dengan atau tanpa bahan tambah lainnya. Bahan tambah yang digunakan dapat berupa limbah atau sisa bahan bangunan yang tidak terpakai. Penggunaan limbah bertujuan untuk mendapatkan mutu paving block sesuai standard dan memanfaatkan limbah secara optimal. Limbah genteng beton banyak ditemukan di sekitar bangunan bertingkat yang sudah lama dan khususnya kampus Politeknik Negeri Jakarta.Limbah ini dapat digunakan sebagai bahan pembentuk paving block sebagai substitusi agregat kasar. Dalam penelitian ini digunakan perbandingan semen dan pasir adalah 1 : 3 dengan presentase limbah genteng beton sebesar 0%, 10%, 20%, 30%, dan 40%. Nilai fas yang digunakan adalah 0,35. Hasil pengujian nilai kuat tekan yang ditinjau pada hari ke 7 pada presentase 0% sebesar 52,59 Mpa, presentase 10% sebesar 44,949 Mpa, presentase 20% sebesar 40,942 Mpa, presentase 30% sebesar 40,685 Mpa dikategorikan mutu A, sedangkan presentase 40% sebesar 26 MPa dikategorikan mutu B.Kata kunci: paving block, Limbah genteng beton, agregat kasar Paving block is a material that is used as a road surface hardening, either for vehicle parking , highways, or for decorative purposes in gardening. The constituent material of paving blocks are cement, sand and water with or without other added material. The added material used can be in the form of waste or residual unused building materials. The use of waste building material of concrete tile aims to get the quality of paving blocks according to standards and utilize waste optimally. Waste concrete roof tiles can be found around many high-rise building constructions and especially Jakarta State Polytechnic campus.This waste can be used as a paving block as a rough aggregate substitute. In this study the ratio of cement and sand was 1: 3 with a percentage of concrete tile waste of 0%, 10%, 20%, 30%, and 40%. The fas value used is 0.35. The testing results of compressive strength which is reviewed on day 7 at a percentage of 0% of 52.59 MPa, 10% of 44.949 MPa, 20% of 40.942 MPa, 30% of 40.658 MPa are categorized as grade A, while at a percentage of 40% the compressive strength is 26 MPa which is categorized as grade B.Keywords: paving block , waste concrete tile, coarse aggregate
PEMBERHENTIAN PENGECORAN BETON UNTUK PEKERJAAN KONSTRUKSI LENTUR BERDASARKAN SNI 2847-2019 Pratikto, Pratikto; Susilowati, Anni; Gym Wijaya, Abdira
Construction and Material Journal Vol. 6 No. 2 (2024): Construction and Material Journal Vol. 6 No. 2 November 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i2.7294

Abstract

The presence of construction joints is an inevitable aspect of field concrete casting. These joints occur when fresh concrete is poured over hardened concrete, which can impact the strength and integrity of the concrete structure. This study aims to evaluate the placement of concrete joints according to SNI 2847-2019, which recommends placing them at one-third of the span of the beam. Testing was conducted on unreinforced concrete beams with two different joint locations. The concrete used had a water-cement ratio (w/c) of 0.5 and a maximum aggregate size of 25 mm, with the mix design following SNI 7656-2012. The test results indicate that joints placed at one-third of the span exhibit better flexural strength compared to those located at the span's ends. The average flexural strengths of beams without joints, those with joints at one-third of the span, and those with joints at one-third of the end span are 1.95 MPa, 1.56 MPa, and 0.98 MPa, respectively. These findings support the SNI 2847-2019 recommendation for placing concrete joints at one-third of the span of the beam.
STUDI EKSPERIMENTAL PENGARUH GGBFS DAN SUPERPLASTICIZER TERHADAP KUAT TEKAN DAN MODULUS ELASTISITAS BETON Susilowati, Anni; Pratikto, Pratikto; Hakim, Haudiah; Raden Bagus Anggietantyo Akiranda
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.7749

Abstract

The use of alternative materials in concrete mixtures is an important effort to improve concrete performance while reducing dependence on cement. This study aims to investigate the effect of adding Ground Granulated Blast Furnace Slag (GGBFS) as a partial substitute for cement on the properties of concrete, both in fresh and hardened conditions, using a constant dosage of type F superplasticizer at 1% of the cement weight. The GGBFS replacement levels used in this study were 0%, 20%, 30%, and 40%. The tests conducted included slump, unit weight, initial setting time, compressive strength, splitting tensile strength, flexural strength, and modulus of elasticity. The results showed that the use of GGBFS significantly affected compressive strength and splitting tensile strength, with optimum results achieved at the 20% replacement level. In contrast, other properties such as flexural strength and unit weight were not significantly influenced. Therefore, GGBFS can be considered an effective supplementary material in concrete mixtures when used at an appropriate dosage.
Co-Authors A, Ginanjar Achmad Misbah Ahmad Multazam, Ahmad Amanda Nur Cahyawati Ananda Chaerul Imam Andy Hardianto Anggara, Teuku Anni Susilowati Arief, Saifullah Dennis Yudha Praditya Denny Widhiyanuriyawan Dian Fitria Agus Aristiyono Djoko Sutikno Eko Wiyono Eko Wiyono Evi Yuliawati Femiana Gapsari MF Fery Putra PT Fitri Ifi Gama Gym Wijaya, Abdira Hakim, Haudiah Hakim, Kamal Amrizal Hasan Bashori Ilyas Renreng Imron Tsaluji Irfan Oktariadi Oktariadi Ishardita Pambudi Tama Iskandar Muda Jessica Sagita Juliano, Hans Kusno Wijayanto Lilis Yuliati Ma'arif, Moch. Syamsul Mega Nur Sasongko Muhammad Andika Ghifary Muhammad Arman Muhammad Hermansyah Murdiyanto, Danang Nanda Mustaqim Nasir Widha Setyanto Oyong Novareza Ponco Muchamad Nur Cahyo Purnomo Budi Santoso Raden Bagus Anggietantyo Akiranda Rahmad Rahmad Rio Prasetyo Lukodono Rizal, Rikki Sofyan Rudolf Triamba Prasetyo Rudy Soenoko Sandra, Dinara Safina Sanjiwani, Yudistira Santosa, Irwan Satria, Kevin Muhammad Slamet Wahyudi Sonief, Achmad As’ad Sonief, Achmad As’ad Srijayasari, Hariti Stella Junus Sugiono Sugiono Sugiyarto Sugiyarto Syarief, Eliana Tjuk Oerbandono Wahyono Suprapto Wibowo, Moh. Muhyidin Agus Widhiyanuriyawan, Denny Widhiyanuriyawan Widya Wijayanti Wirenda Sekar Ayu Yeni Sumantri Yudha, Sabdha Purna Yudy Surya Irawan