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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Unram Journal of Community Service (UJCS)
Hasyim Hasyim
University of Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences

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Artificial Rainfall Aquifer to Supply Clean Water Requirement During the Dry Season in Selengen Village, North Lombok Regency I Wayan Yasa; Didi Supriyadi Agustawijaya; Atas Pracoyo; Ery Setiawan; Hasyim Hasyim; I Dewa Made Alit Karyawan; Humairoh Saidah; I Dewa Gede Jayanegara; Dewandha Mas Agastya
Unram Journal of Community Service Vol. 5 No. 2 (2024): June
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v5i2.608

Abstract

Selengen Village is one of the villages in North Lombok Regency that always experiences drought and lack of clean water every year. The problem of clean water availability is caused by limited water sources on the surface. The frequency of rainwater in Selengen Village is very small and with very low intensity. In order to meet the need for clean water, the community has to pay additional costs to buy clean water or wait for a drop from the government. The Selengan Village community has limited information regarding simple methods that can be used to collect clean water sourced from rainwater. The method used to introduce rainwater capture as a source of clean water is to provide direct outreach to the Selengen Village community about rainwater storage in the form of ABSAH (Artificial Aquifer for Rainwater Savings). The ABSAH method can be done individually or in groups. The socialization was carried out at the Panggung Barat Hamlet office involving the community consisting of farmer groups, community leaders, youth organizations and housewives. The result of the socialization regarding the introduction of artificial rainwater aquifers is the high desire of the community to create rainwater storage, either independently/individually or in groups. In the process of making it, the community hopes to get assistance from the implementation team so that the calculation of the storage volume is in accordance with the volume of water used. Apart from that, the community also hopes to be given drawings of storage designs, installations for collecting water from the roofs of houses and designs of distribution networks to people's homes.
Characteristics of Asbuton Mix Using Geopolymer Fly Ash Coarse Aggregate as a Substitute for Natural Aggregates I Dewa Made Alit Karyawan; Hasyim Hasyim; Desi Widianty; Ratna Yuniarti
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3937

Abstract

The increase in the number of road construction projects has led to an increase in the need for road pavement materials (aggregate and asphalt). Currently it takes about 1.6 million tonnes/year of asphalt, as well as aggregate. Seeing these conditions, it is necessary to anticipate the use of waste or natural resources that have not been utilized optimally. In this study, fly ash (PLTU waste) was used as aggregate and Asbuton (Buton Island rock asphalt) was used as a binder for the asphalt mixture. As an effort to save energy, the stirring system is cold. Based on the volumetric characteristics of the artificial coarse aggregate, it only meets the specifications for the VMA value, while the VIM and VFB values have not been met. The mechanical properties (stability and flow values) of the cold asphalt mixture on the replacement of natural aggregate with 25% artificial aggregate met the requirements, but did not meet the Marshall Quotien requirements
Analysis of the Characteristics of AC-BC Mixtures Incorporating Extracted Asbuton Modified with Waste Engine Oil and Low-Density Polyethylene (LDPE) Using the Marshall Method Dhea Anggreny Dewatary; I Dewa Made Alit Karyawan; Ratna Yuniarti; Hasyim Hasyim
Jurnal Penelitian Pendidikan IPA Vol 12 No 9 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i9.15961

Abstract

Asbuton is an abundant indigenous resource in Indonesia. However, its application in road construction remains limited due to its non-uniform physical properties. Variations in bitumen content, hardness, and mineral composition resulting from natural formation processes reduce its effectiveness as an asphalt binder. This study aimed to evaluate the mechanical and volumetric properties of Asphalt Concrete–Binder Course (AC-BC) mixtures incorporating extracted Asbuton modified with waste engine oil and Low-Density Polyethylene (LDPE) using the Marshall method. The test results showed that the extracted Asbuton did not satisfy the technical specifications and was therefore modified with 7% waste engine oil and LDPE contents of 0%, 0.5%, 1.0%, 1.5%, and 2.0%. The combination of 7% waste engine oil and 0.5% LDPE exhibited the best binder performance. Subsequently, the Optimum Asphalt Content (OAC) was determined through Marshall testing of AC-BC mixtures incorporating of 50% Modified Asbuton (MA) using 15 specimens. The determined OAC was then used to evaluate the properties of AC-BC mixtures with varying MA contents of 0%, 25%, 50%, 75%, and 100%, with 15 specimens prepared for each binder ratio. The results indicated that the mixture containing 50% MA exhibited the best overall mechanical and volumetric performance, achieving the highest stability and Marshall Quotient (MQ).
Co-Authors Atas Pracoyo Desi Widianty Dewandha Mas Agastya Dhea Anggreny Dewatary Didi Supriyadi Agustawijaya Ery Setiawan Humairoh Saidah I Dewa Gede Jayanegara I Wayan Yasa Karyawan, I Dewa Made Alit Ratna Yuniarti