Simulation of Coupled Corrosive Product Formation, Migration into Crack and Propagation in Reinforced Concrete Sections

This paper aims to numerically simulate corrosion induced cracking, its propagation over sections of reinforced concrete members and the penetration of corrosive gel product into crack gaps. A coupled steel core and surrounding corrosion product are mechanically represented by a fictitious growing composite, with which the corrosive cracking initiation and subsequent propagation are simulated by 2D nonlinear crack analysis. The injection of corrosive gels into evolving cracks is substantiated in cases where corrosive cracks stably propagate such as large covers and/or comparatively small diameters of steel, and the coupled system of gel formation, migration and crack propagation is newly presented. The simulation scheme was verified through RC sections subjected to accelerated corrosion by electric current with regard to crack patterns and critical corrosion rates when cracks reach the outer surface of members.

[1]  A. Moliton.  Basic Electromagnetism and Materials , 2006 .

[2]  Nikolaos D. Alexopoulos,et al.  Effect of salt spray corrosion exposure on the mechanical performance of different technical class reinforcing steel bars , 2007 .

[3]  Stavroula J. Pantazopoulou,et al.  Modeling Cover-Cracking due to Reinforcement Corrosion in RC Structures , 2001 .

[4]  Zdenek P. Bazant,et al.  PHYSICAL MODEL FOR STEEL CORROSION IN CONCRETE SEA STRUCTURES­ THEORY , 1979 .

[5]  W. F. Ranson,et al.  Determination of displacements using an improved digital correlation method , 1983, Image Vis. Comput..

[6]  P. Schweitzer.  Corrosion of Carbon and Low-Alloy Steels , 2006 .

[7]  Hiroshi Seki,et al.  BASIC STUDY ON CRACKING OF CONCRETE DUE TO EXPANSION BY REBAR CORROSION , 1987 .

[8]  Koichi Maekawa,et al.  Interaction of Pre-Induced Damages along Main Reinforcement and Diagonal Shear in RC Members , 2004 .

[9]  G. J. Al-Sulaimani,et al.  Influence of Corrosion and Cracking on Bond Behavior and Strength of Reinforced Concrete Members , 1990 .

[10]  Michael D.A. Thomas,et al.  A study of the effect of chloride binding on service life predictions , 2000 .

[11]  Andrew Chan,et al.  Residual capacity of corroded reinforcing bars , 2005 .

[12]  A. I. Al-Mana,et al.  Influence of atmospheric corrosion on the mechanical properties of reinforcing steel , 1994 .

[13]  Yasuo Kajikawa,et al.  ELASTO-PLASTIC ANALYSIS OF EXPANSIVE BEHAVIOUR DUE TO CORROSION OF REINFORCEMENT , 1989 .

[14]  Cruz Alonso,et al.  Cover cracking as a function of bar corrosion: Part I-Experimental test , 1993 .

[15]  R. Sri Ravindrarajah,et al.  CORROSION OF STEEL IN CONCRETE IN RELATION TO BAR DIAMETER AND COVER THICKNESS. CONCRETE DURABILITY. KATHERINE AND BRYANT MATHER INTERNATIONAL CONFERENCE, HELD AT ATLANTA, GEORGIA, USA, 27 APRIL-MAY 1987 , 1987 .

[16]  J. G. Cabrera,et al.  Deterioration of concrete due to reinforcement steel corrosion , 1996 .

[17]  K. Lundgren,et al.  Modelling the effect of corrosion on bond in reinforced concrete , 2002 .

[18]  Cruz Alonso,et al.  Cover cracking as a function of rebar corrosion: Part 2—Numerical model , 1993 .

[19]  Hiroyuki Ohga,et al.  STUDY ON MODEL OF CRACK WIDTH DUE TO CORROSION PRODUCTS , 1998 .

[20]  Olivier Maurel,et al.  Modelling of the flexural behaviour of RC beams subjected to localised and uniform corrosion , 2003 .

[21]  Minoru Kunieda,et al.  Time-Dependent Structural Analysis Considering Mass Transfer to Evaluate Deterioration Process of RC Structures , 2006 .

[22]  C. Apostolopoulos,et al.  Tensile and low cycle fatigue behavior of corroded reinforcing steel bars S400 , 2007 .

[23]  L. Segerlind.  Applied Finite Element Analysis , 1976 .

[24]  K. Tuutti.  Corrosion of steel in concrete , 1982 .

[25]  A. Almusallam,et al.  Effect of degree of corrosion on the properties of reinforcing steel bars , 2001 .

[26]  Giovanni Plizzari,et al.  Mechanical Properties of Corrosion-Damaged Reinforcement , 2005 .

[27]  M. Saeed Mirza,et al.  Mechanical Response of Corroded Steel Reinforcement of Abandoned Concrete Bridge , 2002 .

[28]  G. J. Al-Sulaimani,et al.  Effect of Rusting of Reinforcing Steel on its Mechanical Properties and Bond with Concrete , 1990 .

[29]  K. Maekawa,et al.  Nonlinear mechanics of reinforced concrete , 2003 .

[30]  R. Browne,et al.  Mechanisms of Corrosion of Steel in Concrete in Relation to Design, Inspection, and Repair of Offshore and Coastal Structures , 1980 .