Title: The influence of water cement ratio and sand ratio on the compressive strength of ceramic aggregate concrete at room temperature

Authors: Yingjun Liang; Ju Yi

Addresses: Department of Quality and Information Technology, Hunan Labor and Human Resources Vocational College, Hunan, 410137, China ' School of Civil Engineering, Changsha University, Changsha, 410022, China

Abstract: This research explores the influence of water-cement and sand-aggregate ratios on ceramic aggregate concrete's compressive strength at ambient temperature. By fabricating nine specimens with distinct mix proportions, the study explored the influence of cement content varying from 16.6% to 17.5%. The specimens were subjected to compressive strength tests at 3, 7, and 28 days, and the interrelationships between the water-to-cement ratio, sand-to-aggregate ratio, and the 28-day compressive strength were scrutinised using grey relational analysis. The results indicate that the sand-to-aggregate ratio profoundly affects the 28-day compressive strength of ceramic aggregate concrete across various mix ratios, with a grey correlation degree of 0.7645, underscoring its significance as a pivotal parameter. The water-to-cement ratio also played a role in the experiment, albeit with a lower grey correlation degree of 0.5811, suggesting that it should not be overlooked.

Keywords: water-cement ratio; sand ratio; ceramisite concrete; compressive strength at room temperature.

DOI: 10.1504/IJMMP.2025.143432

International Journal of Microstructure and Materials Properties, 2025 Vol.18 No.1/2, pp.116 - 127

Received: 25 Apr 2024
Accepted: 24 Sep 2024
Published online: 19 Dec 2024 *

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