Chloride-induced corrosion modelling of cracked reinforced SHCC

• Autorzy: Paul S. C. , Van Zijl G.

Identyfikatory

DOI

10.1016/j.acme.2016.04.016

• Języki publikacji: EN

Abstrakty

EN

Corrosion of steel bars in concrete is usually a slow electrochemical process which may need a long time before damage becomes visible in the reinforced concrete (RC). However, cracks provide quick access to chloride, oxygen and water into concrete and accelerate the corrosion process. Corrosion modelling is essential for structural design for a particular life span, or to inform decisions on repair of RC structures to reach or extend their service life. This paper reports experimental research results of accelerated chloride exposure of cracked reinforced strain hardening cement-based composite (R/SHCC) specimens for a period of one year. Based on these novel results, a corrosion model is proposed which incorporates crack width, crack spacing, free chloride content and cover depth. The model is shown to capture the corrosion results of cracked R/SHCC reported in this paper.

Słowa kluczowe

EN

chloride; cracks; corrosion modelling; pitting depth; strain hardening cement-based; composite (SHCC)

PL

spękanie; korozja; kompozyty

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2016
• Tom: Vol. 16, no. 4
• Strony: 734--742
• Opis fizyczny: Bibliogr. 30 poz., rys., tab., wykr.

Twórcy

autor

Paul S. C.

• Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore
• Department of Civil Engineering, Stellenbosch University, South Africa

autor

Van Zijl G.

• Department of Civil Engineering, Stellenbosch University, South Africa

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę