A discussion of the paper "Effect of design parameters on microstructure of steel-concrete interface in reinforced concrete". (February 2020)

• Record Type: Journal Article
• Authors: Zhang, Zhidong; Angst, Ueli
• Is Part Of: Cement and concrete research. Volume 128(2020)
• Publication Date: 2020-02
• Subjects: Steel-concrete interface -- Settlement and bleeding zone -- Cutting effect -- Damage -- Corrosion; Cement -- Periodicals; Cement -- Research -- Periodicals; Concrete -- Periodicals; Concrete -- Research -- Periodicals; Ciment -- Périodiques; Béton -- Périodiques; Cement; Concrete; Periodicals; 620.135
• DOI: 10.1016/j.cemconres.2019.105949
• Languages: English
• ISSNs: 0008-8846

Abstract

Abstract: The steel-concrete interface is fundamental to many aspects related to the performance of reinforced concrete, particularly for corrosion behavior. A recently published paper by Chen et al. [Effect of design parameters on microstructure of steel-concrete interface in reinforced concrete, Cem. Concr. Res. 119 (2019) 1–10] quantitatively characterized the thickness of the gap observed between the steel and concrete. Considering the low number of available publications, studies documenting the microstructure at the steel-concrete interface are important. However, in our discussion, we think that aspects related to the terminology, the specimen preparation and possible experimental artefacts in the discussed paper can be improved.