Title: Enhancing the Journey towards Concrete Net Zero: The Role of Eco-Efficient Concrete, Particle Packing Models, and Limestone Fillers

Author(s): M.T. de Grazia and L.F.M. Sanchez

Publication: Symposium Paper

Volume: 362

Issue:

Appears on pages(s): 901-915

Keywords: limestone fillers (LF), particle packing models (PPM), low-carbon concrete, global warming potential, CO₂ intensity index, and binder intensity (bi) index

DOI:

Date: 6/18/2024

Abstract:
In recent years, there has been a growing need to develop eco-efficient concrete with reduced cement content for sustainable construction practices. This paper aims to highlight the importance of the concrete net zero goal by 2050 and explore how concrete particle-packing models and limestone fillers can contribute to achieving sustainable targets. Four eco-efficient concrete mixtures with varying cement content (320, 250, 200, and 150 kg/m³) were developed. A comprehensive analysis of the hardened state properties, including surface electrical resistivity, compressive strength, and modulus of elasticity, was conducted over time for each mixture. Furthermore, this paper briefly discusses methods to analyze concrete eco-efficiency and their impact on global warming. The results presented in this study contribute to the understanding of the importance of concrete eco-efficiency and provide insights for engineers and researchers on how to evaluate concrete eco-efficiency.