Work

Clarifying early period hydration process of ultra‐low W/B cementitious composite subjected to underwater circumstance

Year: 2024

Type: article

Abstract: An innovative method is proposed in this study that combines long sequence precision prediction model with experiments to study how early hydration affects ultra‐low water‐binder ratio cementitious composite (ULWBRCC) properties. To be specific, by using heat release and degree of hydration as variables and introducing various temporal models to analyze the early hydration process, the micro‐ and macroscopic properties of specimens at different ages are assessed in detail. The obtained results can be summarized as follows: The long‐sequence accurate time series model can predict the earliest hydration process of underwater ULWBRCC, and the predicted late‐stage hydration pattern matches the experimental results. The underwater environment optimizes ULWBRCC's hydration process and increases its early compressive strength by 19.6%. The hydration of ULWBRCC is predicted using a time series model in the paper, filling the gap of uncertainty in the earliest performance of underwater rapid repair cement‐based composite materials, and the MSE of the Informer is improved by 92.88% compared with other models.

Source: Journal of the American Ceramic Society

DOI: 10.1111/jace.20187

Authors: Jinyun Zhu, Liuliu Xu, Rui Yu, Xue Liu, Siyu Wang, Zhiyu Wang

Institutions: Wuhan University of Technology, State Key Laboratory of Silicate Materials for Architecture, Guangxi University

Language: English

Topic: Concrete and Cement Materials Research

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funders: National Natural Science Foundation of China, Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Basic and Applied Basic Research Foundation of Guangdong Province

Awards: G1157153863, G1624373259, G5627456660, G5716488917