PSI - Issue 73

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2025) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 73 (2025) 19–26

23 rd International Conference on Modelling in Mechanics 2025 Maturity method in Zeolite-based high-performance concrete (HPC) Sushant Chaudhary 1 , Pratanu Ghosh 1, *, Paolo Madrigal 1 , Ha Le 1 , Angela Camacho Sixto 1 1 Department of Civil and Environmental Engineering, California State University, Fullerton, CA- 92831, USA Abstract This project aimed to evaluate the effectiveness and accuracy of the maturity method for estimating the compressive strength of various zeolite-based high-performance concrete (HPC) mixtures. Based on empirical strength-maturity relationships derived from laboratory testing, the maturity method utilizes the structure’s specific temperature history to predict concrete strength at any given time. Ten different binary and ternary concrete mixtures were selected to examine the effects of varying percentages of zeolite replacement and include supplementary cementitious materials (SCMs) such as metakaolin, silica fume, pumice, and slag. Seventeen cylindrical specimens (100 mm * 200 mm) were cast and cured in a limewater tank at room temperature for each mixture. Strength development was assessed through destructive testing at 1, 3, 7, 14, and 28 days. Simultaneously, maturity measurements were recorded using multi-channel maturity meters and SmartRock sensors, enabling conversion of time-temperature histories into maturity values using both the Nurse Saul and Arrhenius maturity functions. Exponential, hyperbolic, and logarithmic models were used to estimate strength gain, and the accuracy of each model was analyzed. The results showed strong agreement between experimental and estimated strengths, generally within 20% of the measured values. The Arrhenius and exponential functions provided the most accurate strength predictions among the models. Additionally, a datum temperature of 0°C (32°F) and an activation energy of 37,500 J/mol were optimal for estimating the compressive strength of both binary and ternary zeolite-based mixtures. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers Keywords: HPC; SCM; maturity; datum temperature; activation energy. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the event organizers

* Corresponding author. Tel.: +1-801-664-9758; fax: +1-657-278-3916. E-mail address: pghosh@fullerton.edu

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the event organizers 10.1016/j.prostr.2025.10.004