Overall assessment of Alkali-Aggregate Reaction (AAR) in concretes presenting different strengths and incorporating a wide range of reactive aggregate types and natures

It has been suggested that the Stiffness Damage Test (SDT) and the Damage Rating Index (DRI), mechanical and microscopic tools respectively, can reliably assess the condition of concrete affected by Alkali-Aggregate Reaction (AAR). However, a multi-level characterization of AAR damage through the coupling of the prior tools has never been evaluated so far. This paper presents the overall assessment of twenty concrete mixtures presenting different strengths and incorporating a wide range of aggregate types/natures. Evaluations on both AAR crack development and its influence on the mechanical properties of affected concrete are performed over a multi-level point of view. Results show that strong data envelopes are obtained from each of the test procedures, correlating various critical microscopic and mechanical output parameters with AAR expansion level. Moreover, such assessments allowed the development of comprehensive quantitative data which enables a better understanding/prediction of the material's properties degradation as a function of AAR development.

[1]  Benoit Fournier,et al.  Evaluation of the Stiffness Damage Test (SDT) as a tool for assessing damage in concrete due to alkali-silica reaction (ASR): Input parameters and variability of the test responses , 2015 .

[2]  J. Walraven.  Fundamental Analysis of Aggregate Interlock , 1981 .

[3]  Karen Scrivener,et al.  Micro-mechanical modelling of alkali–silica-reaction-induced degradation using the AMIE framework , 2010 .

[4]  Marc-André Bérubé,et al.  Report on the Diagnosis, Prognosis, and Mitigation of Alkali-Silica Reaction (ASR) in Transportation Structures , 2010 .

[5]  Marc-André Bérubé,et al.  Influence of Specimen Geometry, Orientation of Casting Plane, and Mode of Concrete Consolidation on Expansion Due To ASR , 2004 .

[6]  T. M. Chrisp,et al.  TOWARDS QUANTIFICATION OF MICROSTRUCTURAL DAMAGE IN AAR DETERIORATED CONCRETE. FRACTURE OF CONCRETE AND ROCK: RECENT DEVELOPMENTS. PAPERS PRESENTED AT THE INTERNATIONAL CONFERENCE, UNIVERSITY OF WALES, COLLEGE OF CARDIFF, SCHOOL OF ENGINEERING, SEPTEMBER 20-22, 1989 , 1989 .

[7]  C. Tasdemir,et al.  Influence of Aggregate Type on Mechanical Behavior of Normal- and High-Strength Concretes , 2002 .

[8]  T I Milne,et al.  INFLUENCE OF CEMENT BLEND AND AGGREGATE TYPE ON STRESS-STRAIN BEHAVIOR AND ELASTIC MODULUS OF CONCRETE , 1995 .

[9]  Denis Mitchell,et al.  Concorde Overpass Collapse: Structural Aspects , 2011 .

[10]  Graciela Marta Giaccio,et al.  Mechanical behavior of concretes damaged by alkali-silica reaction , 2008 .

[11]  Nizar Smaoui,et al.  Evaluation of the expansion attained to date by concrete affected by alkalisilica reaction. Part II: Application to nonreinforced concrete specimens exposed outside , 2004 .

[12]  Benoit Fournier,et al.  Effect of Aggregate Particle Size on Determining Alkali-Silica Reactivity by Accelerated Tests , 2006 .

[13]  L.F.M. Sanchez,et al.  Contribution to the assessment of damage in aging concrete infrastructures affected by alkali-aggregate reaction , 2014 .

[14]  Benoit Fournier,et al.  Evaluation of the stiffness damage test (SDT) as a tool for assessing damage in concrete due to ASR: Test loading and output responses for concretes incorporating fine or coarse reactive aggregates , 2014 .

[15]  Sofie Tremblay.  Étude de l'efficacité d'adjuvants à base de lithium afin de contrôler la réaction alcalis-silice dans le béton frais et dans les structures existantes incorporant cet adjuvant , 2011 .

[16]  Nizar Smaoui,et al.  Evaluation of the expansion attained to date by concrete affected by alkali-silica reaction. Part I: Experimental study , 2004 .

[17]  P. Aitcin,et al.  Effect of Coarse Aggregate Characteristics on Mechanical Properties of High-Strength Concrete , 1990 .

[18]  T. M. Chrisp,et al.  Development of a non-destructive test to quantify damage in deteriorated concrete , 1993 .

[19]  Nizar Smaoui,et al.  Evaluation of the expansion attained to date by concrete affected by alkali–silica reaction. Part III: Application to existing structures , 2005 .

[20]  J. C. Walraven,et al.  Theory and Experiments on the Mechanical Behaviour of Cracks in Plain and Reinforced Concrete Subjected to Shear Loading , 1981 .

[21]  A. Neville.  Properties of Concrete , 1968 .

[22]  Jgm Wood,et al.  THE APPRAISAL AND MAINTENANCE OF STRUCTURES WITH ALKALI-SILICA REACTION , 1993 .

[23]  Marc-André Bérubé,et al.  ALKALI-AGGREGATE REACTION IN CONCRETE : A REVIEW OF BASIC CONCEPTS AND ENGINEERING IMPLICATIONS , 2000 .

[24]  R. S. Crouch,et al.  Damage evolution in AAR affected concretes , 1990 .

[25]  Benoit Fournier,et al.  Reliable quantification of AAR damage through assessment of the Damage Rating Index (DRI) , 2015 .

[26]  Hans W. Reinhardt,et al.  A fracture mechanics approach to the crack formation in alkali-sensitive grains , 2011 .

[27]  Jianzhuang Xiao,et al.  Shear transfer across a crack in recycled aggregate concrete , 2012 .