Journal article

Influence of aggregate surface treatment on corrosion resistance of cement composite under chloride attack

Dandan Sun, Huisheng Shi, Kai Wu, Saeed Miramini, Binbin Li, Lihai Zhang

Construction and Building Materials | Elsevier BV | Published : 2020

Abstract

The high porosity of interfacial transition zone (ITZ) could significantly influence the durability of offshore concrete structures. This study aims to investigate the effects of aggregate surface by coating slag and silica fume on the ITZ microstructure, ultimately the corrosion resistance of the cement composite materials exposed to chloride attack. First, a series of experimental studies on chloride transport were carried out. Then, an experimentally validated model was developed to further understand the fundamental reactive-transport behaviour of chlorides in concrete in relation to different aggregate surface coating methods. The experimental results show that aggregate surface coating..

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Grants

Awarded by National Natural Science Foundation of China


Awarded by Sichuan Science and Technology Program


Awarded by State Key Laboratory of Solid Waste Reuse for Building Materials


Funding Acknowledgements

The authors acknowledge the financial support provided by the National Natural Science Foundation of China (51978505), Sichuan Science and Technology Program (2019YFSY0018), the Fundamental Research Funds for the Central Universities, State Key Laboratory of Solid Waste Reuse for Building Materials (SWR-2017-003) and the China Scholarship Council.