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All Journal REKA RACANA Rekayasa Sipil JHP17 (Jurnal Hasil Penelitian) RACIC : Rab Construction Research EXTRAPOLASI: Jurnal Teknik Sipil axial : jurnal rekayasa dan manajemen konstruksi Portal: Jurnal Teknik Sipil Jurnal Teknik Sipil dan Teknologi Konstruksi Pawon: Jurnal Arsitektur Jurnal Kacapuri : Jurnal Keilmuan Teknik Sipil Jurnal Teknik Industri Terintegrasi (JUTIN) DEVICE Extrapolasi Jurnal Teknik Sipil Jurnal Sains dan Teknologi Journal of Scientech Research and Development Student Scientific Creativity Journal Journal of Planning and Research in Civil Engineering Jurnal Teknik Sipil Senadika
Nurul Rochmah
Program Studi Teknik Sipil Fakultas Teknik UNTAG Surabaya
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation Other

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Pengaruh Penggunaan Abu Kayu Jati sebagai Subtitusi Semen pada Beton Pori Kusuma, Priba Dwi; Rochmah, Nurul
Jurnal Sains dan Teknologi (JSIT) Vol. 6 No. 2 (2026): Mei - Agustus
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

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Abstract

His study aims to analyze in depth the effect of teak wood ash substitution as a partial replacement for cement on the compressive strength of porous concrete. Teak wood ash was selected as an alternative material because, in addition to being abundantly available as wood waste, it also has the potential to reduce cement consumption, thereby contributing to lower carbon emissions and reduced concrete production costs. This research employed a systematic laboratory experimental method with teak wood ash substitution variations of 0%, 1%, 2%, 3%, and 5% by weight of cement. Each mixture was carefully tested to determine its effect on the compressive strength of porous concrete at 28 days of curing age, in accordance with applicable concrete testing standards. The test results showed that porous concrete without teak wood ash substitution produced the highest compressive strength of 8.32 MPa. Meanwhile, the compressive strength values for substitutions of 1%, 2%, 3%, and 5% were 6.84 MPa, 7.39 MPa, 6.84 MPa, and 5.73 MPa, respectively. These results indicate that the addition of teak wood ash tends to reduce the compressive strength of porous concrete; however, the 2% substitution variation showed the best performance among all variations. The decrease in compressive strength at higher substitution levels is presumed to occur due to the reduction in cement as the main binding material and the increase in air voids within the concrete, resulting in a less dense concrete structure. Therefore, a 2% teak wood ash substitution can be considered the optimum level for producing porous concrete that still possesses adequate strength while being more environmentally friendly and cost-effective.
Co-Authors ACH. BARIZI Achmad ihza Mahendra Achmad Sa'roni Amalia, Taris Rizka Amanda, Rachel Arifin, Moch.Ali Arsasuta, Faris Augdrie, May Haidar Bantot Sutriono Bantot Sutriono Bantot Sutriono, Bantot Beoang, Conrad Esguerra Jordy Budy Wiryawan Devangga, Ramadhan Azzahdewa Dewi Pertiwi Dimas Permana Dwijayanto, Pebru Fadilla, Deska Vira Fadillah, Zebina Hiya Reksa Fambudi, Ivan Oky Febry Feriansyah Maulana Ahsan Firmansyah, Mochamad FIRMANSYAH, MOCHAMMAD Gede Sarya Gede Sarya, Gede Gono, Theresia Kristanti Hamzah, Muhammad Syafrie Haqq, Mohammad Ivan Hari Sapto Wibowo Hartono, Chisa Kurniawan Herry Widhiarto Hilda Agnes Janwarin Irfan, Muhammad Andy Jhoni Setiawan Kusuma, Priba Dwi laily endah fatmawati Lukmansyah, Indra Mahanani, Aulia Bintang Masruri, Mochamad Hafidh Mathias, Leonardo Mauludiyana, Gita Michella Beatrix Moch. Ubaidillah Fatra Alrozzaqi Napa, Marniantu Helena Prasetia, Mohamad Adi Pratama, Eza Dafa Putra, R. Firdaus Alamsyah R. Arco Hermawan Brahmassetyo Ramadhan, M. Fathin Retno Trimurtiningrum Santoso Nugroho Santoso, Dwi Prima Saputra, Yusaq Bahyu Saputri, Denis Tiyas Ayu Sari, Tri Saves, Faradlillah Teguh Listiko Wijaya Tirani, Aksaradia Sang Trimurtiningrum, Retno Tzu-Ying Lee Utomo, Rendy Cahyo Wahyu Pamungkas, Hegar Winarko, Edy