Work

Mechanical properties of Eco-friendly Alkali-activated Concrete Containing Plastic Waste and Crumb Rubber Tires

Year: 2025

Type: article

Abstract: This study aims to investigate an eco-friendly concrete for sustainable development in construction materials.Alkali-activated concrete was produced using by-product wastes, i.e., fly ash and rice husk ash.Crumb rubber obtained from waste tires was used as fine aggregate.Crushed plastic automotive parts were used to replace natural limestone at replacement levels of 10% and 20% by volume.The results showed that adding crumb rubber and plastic waste up to 20% reduced the unit weight and slump of alkali-activated concrete, while increasing its strain capacity under compression.The 28-day compressive strength of rubberized concrete containing plastic waste ranged between 5.4 and 10.0 MPa, suggesting its suitability for use as a subbase beneath slabs or pavements.In addition, based on the mechanical performance, environmental sustainability, and cost-efficiency discussed in this study, incorporating 10% crumb rubber or 10% plastic waste is considered the optimal replacement level in concrete mixtures.

Source: Engineered Science

DOI: 10.30919/es1673

Authors: Peem Nuaklong, Kantipok Hamcumpai, Suraparb Keawsawasvong, Chanachai Thongchom, Pitcha Jongvivatsakul, Suched Likitlersuang

Institutions: Thammasat University, Chulalongkorn University

Language: English

Topic: Innovative concrete reinforcement materials

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Industry, innovation and infrastructure, Sustainable cities and communities

Open Access status: diamond

Funders: National Research Council of Thailand, Thammasat University, Ministry of Higher Education, Science, Research and Innovation, Thailand, Thailand Science Research and Innovation