Justek : Jurnal Sains Dan Teknologi
Vol 8, No 4 (2025): December

A Study of Pumice as a Geo-Paving Material

Swahip Swahip (Universitas Muhammadiyah Malang)
Ahmad Fathoni (Universitas Muhammadiyah Mataram)
Alpiana Alpiana (Universitas Muhammadiyah Mataram)



Article Info

Publish Date
20 Dec 2025

Abstract

This study aims to evaluate the characteristics of pumice as a substitute aggregate material for producing lighter, more economical, and environmentally friendly geo-paving. The research method includes literature review and laboratory testing focused on bulk density and mechanical performance of pumice-based paving blocks with three composition variations: 20%, 40%, and 60%. The results indicate that pumice from Pemepek Village has an average density of 0.72 g/cm³ and can reduce paving weight by 15–45% compared to conventional paving, although compressive strength decreases as pumice content increases. Overall, compositions containing 20–40% pumice are considered the most optimal in delivering well-performing paving blocks with higher ecological and economic value.

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