Compressive Strength Analysis of Sand and Plastic-Based Paving Blocks
Denny Meisandy Hutauruk, Bambang Hadibroto, Ahmad Andi Solahuddin, Novrizaldi Wardana, Sutrisno, Harry Wibowo, Teuku Zawil Faiza, Margomgom Marbun, Jana Jhon Syalom, Hardyka Labistha, Reynando Immanuel Simanjuntak

Universitas Negeri Medan

Abstract

Plastic waste is one of the major environmental pollutants due to its non-biodegradable nature. Utilizing it as an alternative material in construction is a promising solution, particularly as a binder in the production of paving blocks. This study aims to analyze the compressive strength of paving blocks made from a mixture of sand and plastic waste. The manufacturing process involved melting the plastic and mixing it with sand in various mix ratios (1:3, 1:4, and 1:5). Compressive strength testing was conducted in accordance with Indonesian National Standards (SNI). The results indicate that the variation in mix ratios significantly affects the compressive strength of the paving blocks. Certain mix ratios produced optimal strength values that meet or approach the quality standards for light to medium-duty applications. This study demonstrates the potential use of plastic waste as an environmentally friendly alternative binder in paving block production.

Keywords: compressive strength, paving block, plastic waste, sand, alternative binder

Topic: Sciences, Engineering and Material Science