Chloride-induced corrosion modelling of cracked reinforced SHCC

被引：25
|
作者：
Paul, Suvash C. [1 ,2 ]
van Zijl, Gideon P. A. G. [2 ]
机构：
[1] Nanyang Technol Univ, Singapore Ctr Printing 3D, Sch Mech & Aerosp Engn, Singapore, Singapore
[2] Univ Stellenbosch, Dept Civil Engn, ZA-7600 Stellenbosch, South Africa
来源：
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING | 2016年 / 16卷 / 04期
关键词：
Chloride; Cracks; Corrosion modelling; Pitting depth; Strain hardening cement-based composite (SHCC); CONTAMINATED CONCRETE; STEEL; WIDTH;
D O I：
10.1016/j.acme.2016.04.016
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
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. (C) 2016 Politechnika Wroclawska. Published by Elsevier Sp. z o.o. All rights reserved.
引用
收藏
页码：734 / 742
页数：9
相关论文
共 50 条
  • [1] A novel link of the time scale in accelerated chloride-induced corrosion test in reinforced SHCC
    van Zijl, Gideon P. A. G.
    Paul, Suvash Chandra
    CONSTRUCTION AND BUILDING MATERIALS, 2018, 167 : 15 - 19
  • [2] Chloride-Induced Corrosion of Cracked Cement-Based Composites
    van Zijl, Gideon P. A. G.
    Bezuidenhout, Schalk R.
    van Rooyen, Algurnon S.
    STRAIN-HARDENING CEMENT-BASED COMPOSITES, 2018, 15 : 643 - 650
  • [3] Modeling of chloride-induced corrosion in reinforced concrete structures
    Zhang, Juhui
    Cheung, Moe M. S.
    MATERIALS AND STRUCTURES, 2013, 46 (04) : 573 - 586
  • [4] Chloride-induced corrosion of reinforced concrete bridge decks
    Kassir, MK
    Ghosn, M
    CEMENT AND CONCRETE RESEARCH, 2002, 32 (01) : 139 - 143
  • [5] Modeling of chloride-induced corrosion in reinforced concrete structures
    Juhui Zhang
    Moe M. S. Cheung
    Materials and Structures, 2013, 46 : 573 - 586
  • [6] Examination of Chloride-Induced Corrosion in Reinforced Geopolymer Concretes
    Kupwade-Patil, Kunal
    Allouche, Erez N.
    JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2013, 25 (10) : 1465 - 1476
  • [7] Chloride-induced reinforcement corrosion in cracked concrete: the influence of time of wetness on corrosion propagation
    Kaethler, Carolina Boschmann
    Angst, Ueli M.
    Ebell, Gino
    Elsener, Bernhard
    CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 2021, 56 (01) : 1 - 10
  • [8] Carbonation-Induced and Chloride-Induced Corrosion in Reinforced Concrete Structures
    Zhou, Y.
    Gencturk, B.
    Willam, K.
    Attar, A.
    JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2015, 27 (09)
  • [9] Organic substances as inhibitors for chloride-induced corrosion in reinforced concrete
    Ormellese, M.
    Bolzoni, F.
    Lazzari, L.
    Brenna, A.
    Pedeferri, M.
    MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2011, 62 (02): : 170 - 177
  • [10] Chloride-induced corrosion behavior of reinforced cement mortar with MWCNTs
    Li, Weiwen
    Liu, Yi
    Jiang, Zhilu
    Fang, Yiqin
    Zhan, Nianrong
    Long, Wujian
    Xing, Feng
    SCIENCE AND ENGINEERING OF COMPOSITE MATERIALS, 2020, 27 (01) : 281 - 289
12345