Utilization of Plastic Waste as Partial Substitution of Aggregate for Eco-friendly Concrete Innovation

DOI

10.2991/978-94-6463-926-1_12How to use a DOI?

Keywords

Aggregate Substitution; Compressive Strength; Eco-friendly Concrete; Plastic Waste; Sustainable Construction

Abstract

The use of plastic waste as a substitute material in concrete is an innovative approach to supporting sustainable construction while reducing the environmental impact of plastic waste accumulation. This study aims to evaluate the effect of partial aggregate substitution by plastic waste on concrete compressive strength and to determine the substitution combination that produces optimal mechanical performance without compromising sustainability. Three types of plastic waste, namely HDPE, LDPE, and PET, were used with varying levels and different substitution positions, both as a substitute for coarse and fine aggregates. Concrete with a planned quality of K-200 was tested for compressive strength after 28 days of curing. The results showed that 0.7% PET substitution in coarse aggregate provided the best performance with an average compressive strength of 220.94 kg/cm², close to that of normal concrete (236.8 kg/cm²). LDPE at a content of 10% as fine aggregate still showed acceptable performance, while HDPE caused the most significant decrease in compressive strength. These findings confirm that the type and content of plastic waste greatly affect the mechanical properties of concrete, and indicate the great potential of using plastic waste as an environmentally friendly construction material if applied in a controlled manner.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Firmanilah Kamil
AU  - Julyan Purnomo
AU  - Muh Anhar
AU  - S. P. Irianto
PY  - 2025
DA  - 2025/12/31
TI  - Utilization of Plastic Waste as Partial Substitution of Aggregate for Eco-friendly Concrete Innovation
BT  - Proceedings of the International Conference on Applied Science and Technology on Engineering Science 2025 (iCAST-ES 2025)
PB  - Atlantis Press
SP  - 93
EP  - 100
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-926-1_12
DO  - 10.2991/978-94-6463-926-1_12
ID  - Kamil2025
ER  -