The Evolution Analysis of Mechanical Properties of Marine Submerged Concrete Based on GRA

Abstract:

Deterioration of concrete in marine environment and the durability of coastal constructions have raised great concern throughout the world. This work mainly focuses on the compressive strength of concrete in marine submerged environment. Data in previous researches has been collected in this work, which can be used in a particular environment and specific types of concrete for different background, while making it difficult to analysis the influencing factors as a whole. In order to find a relative systematical solution to summarize the data, Grey Relational Analysis method is applied to analysis the mass data collected from previous literates at home and aboard. The purpose of this study is to make a sensitivity analysis of factors influencing the concrete compressive strength in submerged marine environment and guide engineering practice. The results turn out that the initial strength plays the most important role in the final strength after long-term immersion. In addition, the immersing age and cationic ions also affect the final strength of marine concrete. In all, general deterioration exhibits the tendency that upgrading at the very beginning and then descending later.

• Periodical: Key Engineering Materials (Volume 748)
• Pages: 316-322
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.748.316
• Online since: August 2017
• Authors: Cheng Yao Liang, Chun Xiang Qian*, Wen Ce Kang, Huai Cheng Chen
• Keywords: Compressive Strength, Concrete, Grey Relational Analysis, Marine Environment

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