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Putu Aryastana
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Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa
Published by Universitas Warmadewa
ISSN : 23032693     EISSN : 25812939     DOI : https://doi.org/10.22225/pd.6.2.482.108-122
Core Subject : Social, Engineering,
Civil Engineering, Building, Construction & Architecture Environmental Science
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa, 2303-2693 (Print ISSN), 2581-2939 (Electronic ISSN) is a journal of civil engineering provides a forum for publishing research articles or review articles which published by Warmadewa University Press jointly with Progam Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa. This journal is also dedicated to provide an intellectual space of scholarly discussion how journal of civil engineering able to create the new global formation of civil engineering and similar issues. This journal has been distributed by Progam Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa started from Volume 1 Number 1 Year 2012 for Print and Oline from Volume 3 Number 1 Year 2014 to present. This journal encompasses original research articles, review articles, and short communications, including: Civil Engineering; Water Resources; Construction Management; Transportation; Structure; Geotechnics; Environment; Others Engineering
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 1 Documents
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Search results for , issue "305-311" : 1 Documents clear
Mechanical properties of asbestos and basalt stone waste as structural concrete Wisuryha, Ni Putu Indira Saraswati Kumari; Kardita, Putu Cinthya Pratiwi; Ariawan, I Made Agus; Manuaba, Ida Ayu Made Dwitya Widani; Nugraha, I Dewa Gede Byantara; Putrawan, Abbror Ragil
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa 305-311
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.14.2.13982.305-311

Abstract

The Earth's average surface temperature has increased immensely, reaching 1.45 +/- 0.12 Celsius in 2023. This is linked to growing carbon emissions from industrial activities, particularly the construction sector. The production of 1 m3 of conventional concrete can emit up to 277.82 kg CO2. Indonesia remains the second-largest asbestos importer, contributing over 100,000 tons annually to the local construction sector in 2023. Most of the waste is unmanaged and causes health concerns. Simultaneously, Bali’s stone carving industry generates approximately 30% basalt stone waste, much of which remains unprocessed and is discarded into rivers or roadside drains. Nationally, Indonesia holds over 1 billion tons of basalt reserves, yet utilization remains low. Addressing these dual environmental issues, this study proposes a sustainable concrete innovation that utilizes 3% asbestos waste as a substitute for cement and 20% basalt waste as a replacement for coarse aggregate. The proposed concrete mix was tested following SNI 03-2847-2002, ASTM C39, and SNI 03-1974-1990. The results show a compressive strength of 44.26 MPa, higher than the required 41.4 MPa for high-strength concrete based on SNI 03-6468-2000. The modified mixture also has a 16.71 percent lower density than normal concrete and a slump value of 157.67 mm, indicating good workability. Furthermore, the mix reduces carbon emissions by 31.273 kg CO2 per m3 and lowers production cost by 43.9 percent, saving IDR 731,401 compared to conventional concrete with similar strength. These innovations show that asbestos and basalt waste can be transformed into low-carbon structural materials, promoting the circular economy while mitigating environmental risks from unmanaged industrial waste.

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