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This Author published in this journals
All Journal Indonesian Journal of Society Development (IJSD) Advance Sustainable Science, Engineering and Technology (ASSET)
Yayan Adi Saputro
Universitas Islam Nahdlatul Ulama Jepara
Chemistry Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Social Sciences

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Competency Training for Building Modeling and Information Design Department at SMK LEMURIA Kudus Yayan Adi Saputro; Khotibul Umam; Nor Hidayati; Decky Rochmanto; Ariyanto; Ahmat Wakit
Indonesian Journal of Society Development Vol. 2 No. 3 (2023): June, 2023
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijsd.v2i3.4584

Abstract

LEMURIA Kudus Vocational School is a vocational high school that has the potential to be developed because it is aligned with the field of science, namely civil engineering or more specifically related to building construction. So far, students of Building Information and Modeling Design have only studied images, with a coaching program that leads them to be able to apply them in the world of work. The guidance referred to in this proposed program is "Development of Competence for Building Implementers and Preparation of Building Construction Plans in the Department of Building Design Modeling and Information at SMK LEMURIA KUDUS". In this activity three main activities are proposed, namely: (1). Knowledge of a building implementer (2). Provide guidance in making Budget Plans in Building Construction (3). Strengthening competence after graduating from school
Mechanical Performance of Recycled Plastic-Based Paving Blocks with Sand and Fly Ash Fillers Mochammad Qomaruddin; Adi Noor Fakhriyan; Yayan Adi Saputro; Yulita Arni Priastiwi; Fatchur Roehman; Nasyiin Faqih; Arif Hidayat; Akhmad Firdos Khoiril Khitam
Advance Sustainable Science Engineering and Technology Vol. 8 No. 2 (2026): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i2.2664

Abstract

The use of recycled plastic waste as a binder for paving blocks has been reported in a number of previous studies. However, most of these studies focus on feasibility and do not clearly explain how different plastic types behave mechanically over time. In this study, the compressive strength performance of paving blocks made from polypropylene (PP), polyethylene terephthalate (PET), and high-density polyethylene (HDPE) was experimentally compared using sand or fly ash as fillers. All mixtures were prepared with a fixed composition of 60% plastic and 40% aggregate. Compressive strength testing was carried out at 28 and 56 days using three specimens for each mix. The results show that the HDPE–sand mixture achieved the highest compressive strength at 28 days, reaching 15.7 MPa. Nevertheless, a noticeable reduction in strength was observed at 56 days, particularly in the HDPE-based mixtures. This reduction is mainly associated with polymer shrinkage and the development of interfacial stresses between the plastic binder and the aggregates. Overall, the results indicate that plastic-based paving blocks can meet the requirements of SNI 03–0691–1996 for light-duty applications, although their long-term mechanical stability remains a limitation that needs further attention.
Co-Authors Adi Noor Fakhriyan Ahmat Wakit Akhmad Firdos Khoiril Khitam Arif Hidayat Ariyanto Decky Rochmanto Fatchur Roehman Khotibul Umam Nasyiin Faqih Qomaruddin, Mochammad Yulita Arni Priastiwi