Multi-Objective Optimization Design and Performance Verification of Cement-Free Polyethylene Recycled Concrete Based on Particle Packing Theory and Interfacial Mechanics Model

DOI

10.2991/978-94-6463-932-2_4How to use a DOI?

Keywords

Cement-free concrete; Recycled polyethylene; Particle gradation optimization; Interfacial mechanics; Multi-objective optimization

Abstract

To address the high carbon emissions of cement production and the resource utilization of construction waste, this study proposes an eco-friendly cement-free concrete based on recycled aggregate (RCA) and low-density polyethylene(LDPE).By integrating particle packing theory and interfacial mechanics models, a multi-objective optimization algorithm (NSGA-II) was employed to achieve the synergistic optimization of mechanical properties, environmental benefits, and cost. Experimental results show that the optimized concrete achieves a 28-day compressive strength of 35.2 MPa, a 62% reduction in carbon emissions compared to ordinary concrete, and a 40% improvement in the nanoindentation modulus of the interfacial transition zone (ITZ). This study provides theoretical and experimental support for the development of low-carbon building materials.

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  - Peisong Zhuang
AU  - Chen-Yuan Chiu
AU  - Lanlan Qin
AU  - XinLong Zhang
AU  - Bin Lai
AU  - YikHung Yu
AU  - Yi Hui Yip
AU  - Jun Li
PY  - 2025
DA  - 2025/12/22
TI  - Multi-Objective Optimization Design and Performance Verification of Cement-Free Polyethylene Recycled Concrete Based on Particle Packing Theory and Interfacial Mechanics Model
BT  - Proceedings of the 2025 2nd International Conference on Civil Engineering Structures and Concrete Materials (CESCM 2025)
PB  - Atlantis Press
SP  - 22
EP  - 29
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-932-2_4
DO  - 10.2991/978-94-6463-932-2_4
ID  - Zhuang2025
ER  -