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All Journal REKAYASA Muslim Business and Economic Review
Prasetya, Fandi Angga
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Agriculture, Biological Sciences & Forestry Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Physics

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Influence of Sand Casting Waste as Substitutor of Quartz Sand in Mortar Prasetya, Fandi Angga; Faria, Niswatun; Susanto, Tri Eddy; Firdaus, Rizqi Ni’amul; Zamzami, Yaski Achmad
Rekayasa Vol 14, No 3: Desember 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i3.12451

Abstract

Sand casting waste has the potential to replace quartz sand in mortar manufacture because it contains high silica. This study uses sand casting waste from the steel industry in Gresik, Indonesia to observe how it affects the quality of the mortar. Initial characterization were carried out to determine the properties of the material, including; magnetic test which results are not attracted by magnets, moisture content test with a value of 0.328%, XRD test to determine the crystallinity content which results contain 99.52% Silica Quartz, and XRF test to determine the content of the compound in which results are 81.25% Silica dominant. Then observations were made by making mortar with the replacement of quartz sand by sand casting with variations of 0% wt, 25% wt, 50% wt, and 100% wt and then tested its compressive strength at 3 days, 7 days, and 28 days. Based on the research that has been done, the optimum result using sand casting is at 25% wt with a compressive strength of 251.15 kgf/cm2 at 28 days of age which is higher than the standard.
Grounding the Applicability of Eloquent Theoretical Waqf for Rural Waste Management: A Case Study of the Gresik Industry Region Hudaifah, Ahmad; Prasetya, Fandi Angga; Cholilie, Irvan Adhin; Tutuko, Bambang
Muslim Business and Economics Review Vol. 1 No. 1 (2022)
Publisher : Universitas Islam Internasional Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56529/mber.v1i1.26

Abstract

Like many other cities, the industrial region of Gresik encounters problematic issues inherent in the burgeoning quantities of waste in landfill sites despite frequent policy implementations and other efforts from the local government. This study aims to examine and interlink between the possibility of the waqf concept and the growing number of waste issues in the Gresik industrial region. By harnessing ethnographical principles such as employing direct and consistent observations and reviewing numerous relevant literature surveys and archival documents, the study attempts to propose an executable design and model that will serve as a framework for stakeholders to address the weaknesses of current less favourable waste treatment programs. A comprehensive and rigorous consideration concludes that the viability of waqf can be a workable prospect and nucleus for an alternative solution and a complementary voluntary enhancement of effective regional policies and programs. An actionable and contributable waqf aspiration can start from the reformulation and rejuvenation of a rural waste bank which is designed to manage an effective balance between profitable and eco-friendly objectives. Professionalism and competence are significant factors in successfully enhancing the functionality of such an institution. Apart from the micro perspective, the bigger picture of a nexus of waqf and waste, including the current intermittent commitment from top policy makers transferred into timely execution, futuristic applicable technology, charitable giving and donation, and sensible collaborative cooperation, constitutes the conceivable determinants for the accomplishment of an efficacious program.
Co-Authors Ahmad Hudaifah, Ahmad Bambang Tutuko Cholilie, Irvan Adhin Faria, Niswatun Firdaus, Rizqi Ni’amul Susanto, Tri Eddy Zamzami, Yaski Achmad