1st Edition

Concrete Repair, Rehabilitation and Retrofitting III 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR-3, 3-5 September 2012, Cape Town, South Africa

    This proceedings volume consists of papers focusing on repairing, maintaining, rehabilitating, and retrofitting of existing infrastructures to extend their life and maximize economic return. Moreover, structural performance and material durability are discussed. Contributions fall under the following headings: (i) Concrete durability aspects, (ii) Condition assessment of concrete structures, (iii) Modern materials technology, (iv) Concrete repair, rehabilitation and retrofitting, (v) Performance and health monitoring, and (vi) Education, research and specifications. Major attention is paid to innovative materials for durable concrete construction, integrated service life modelling of reinforced concrete structures, NDE/NDT and measurement techniques, repair methods and materials, and structural strengthening and retrofitting techniques. For researchers and practitioners in structure and infrastructure engineering. Set of book of abstracts (546 pp) and a searchable full paper CD-ROM (1564 pp).

    ICCRRR Committees

    Keynote papers

    Assessing the remaining service life of existing concrete bridges
    J.C. Walraven

    The transformation of the existing building stock: A precondition for a sustainable future
    P. Richner

    The concrete repair industry, actions for improvements
    P.H. Emmons

    Where does rehabilitation fit into the South African dam safety picture?
    C. Oosthuizen

    A life in non-destructive testing!
    M.G. Grantham

    Non-destructive testing and continuous monitoring: Modern tools for performance assessment and life time prognosis of structures
    C.U. Grosse

    Operational Modal Analysis for testing and continuous monitoring of bridges and special structures
    A. Cunha, E. Caetano & F. Magalhães

    From the instantaneous corrosion rate to a representative value
    C. Andrade, N. Rebolledo & F. Pedrosa

    Novel cement-based composites for strengthening and repair of concrete structures
    V. Mechtcherine

    Rehabilitation and strengthening of concrete structures using Ultra-High Performance Fibre Reinforced Concrete
    E. Brühwiler

    Textile-based composites versus FRP as strengthening and seismic retrofitting materials for concrete and masonry structures
    T.C. Triantafillou

    Theme 1: Concrete durability aspects
    Innovative materials and influences of material composition

    Curing technologies, strength and durability performance
    R. Wasserman & A. Bentur

    The effect of binder type on chloride threshold values for reinforced concrete
    M.C. Alonso, M. Sanchez, U. Angst & J.L. Garcia-Calvo

    Durability properties of high performance metakaolin concrete in different curing conditions
    M. Skazlić, A. Baricevic & M. Peric

    Quantification of anhydrous GGBFS particles in cement pastes subjected to organic acids: Comparison of selective dissolution and image analysis methods
    J. Duchesne & O. Oueslati

    Performance evaluation of limestone mortars for elevated temperature application in nuclear industry
    K.M. Haneefa, M. Santhanam & F.C. Parida

    Optimization of fly ash based geo-polymer concrete
    A. Arjun & J. Michel Laye

    Durability studies on glass fiber reinforced High Performance Concrete with fly ash as admixture
    H. Sudarsana Rao & V.G. Ghorpade

    Strength and sulphate resistance of rice husk ash concrete
    D.B. Raijiwala & I.U. Kundan

    Improvement of repairing mortars in cold environments using coal bottom ash
    C. Argiz, E. Menéndez & M.A. Sanjuán

    TiO2 TRC—New features of TRC by titanium dioxide modifications
    W. Brameshuber & C. Neunzig

    The use of superabsorbent polymers as a crack sealing and crack healing mechanism in cementitious materials
    D. Snoeck, K. Van Tittelboom, N. De Belie, S. Steuperaert & P. Dubruel

    Effect of matrix permeability on durability of structural grade geopolymer and conventional concretes
    K. Sagoe-Crentsil, S.Yan & T. Brown

    Polymers in concrete repairing according to EN 1504
    L. Czarnecki & P. Łukowski

    Durability properties of inorganic polymer concrete using fly ash and slag
    J.R. Mackechnie & A.C.N. Scott

    Aminobenzoate modified hydrotalcites as a novel smart additive of reinforced concrete for anticorrosion applications
    Z. Yang, H. Fischer & R.B. Polder

    Mix design, mechanical properties and impact resistance of UHPFRCCs
    D. Nicolaides, A. Kanellopoulos, M. Petrou & M. Soutsos

    Durability of lightweight self-consolidating concrete in massive structures
    M. Kaszynska

    Influence of different recycled aggregate types on strength and abrasion resistance properties of concrete
    S.O. Ekolu, L.N. Makama & W.P. Shuluuka

    Innovative low cost fibre-reinforced concrete—Part I: Mechanical and durability properties
    D. Bjegović, A. Baricevic & S. Lakusic

    Innovative low cost fibre-reinforced concrete—Part II: Fracture toughness and impact strength
    J. Krolo, D. Damjanovic, I. Duvnjak, D. Bjegović, S. Lakusic & A. Baricevic

    The effect of cement type on the performance of mortars modified by superabsorbent polymers
    A.J. Klemm & K. Sikora

    Effect of super-absorbent polymer on simplification of curing and prevention of micro-cracking of concrete at early age
    K. Ichimiya, H.-W. Reinhardt & A. Assmann

    The influence of the particle size of superabsorbent polymer on internal curing of high performance concrete
    H. Huang, N. Van Tuan & G. Ye

    Porous network concrete: Novel concept of healable concrete structures
    S. Sangadji, E. Schlangen & A. Milenkovic

    An experimental methodology to assess the self-healing capacity of cementitious composites with “aero-crystallizing” additives
    L. Ferrara, V. Krelani, I. Pessina, P. Bamonte & E.G. Brac

    Study of the effectiveness of different types of surface protection materials applied in concrete structures
    K.S. Almeida, M.Q. Oliveira, V. Pereira & E.B. Monteiro

    Influence of cement content and environmental humidity on cement-asphalt composites performance
    A. Garcia, P. Lura & M.N. Partl

    Engineered Cementitious Composite as a cover concrete against chloride ingress
    Y. Lin, L. Wotherspoon, J.M. Ingham, A. Scott & D. Lawley

    Fire resistance performance of concretes exposed to high temperatures
    D. Pasla

    Fire-protection coating of reinforced concrete lining in Lefortovsky tunnel
    V.R. Falikman & A.A. Shilin

    Influence of hydrophobicity and oleophobicity on cleaning graffiti on concrete panels and natural stones
    K. Malaga & U. Mueller

    Service life modelling and prediction of durability

    Developing a modified rapid chloride permeability test for mortar concrete
    A.A. Ramezanianpour, A.R. Pilvar, M. Mahdikhani, F. Moodi & R. Pilvar

    Measuring permeability of cementitious materials
    Q.T. Phung, G. De Schutter, N. Maes, D. Jacques & G. Ye

    The pore structure and water permeability of cement paste blended with fly ash over a long period up to one year
    Z. Yu & G. Ye

    Measurement of the air permeability of concrete “in situ”: Status quo
    R. Torrent & L. Ebensperger

    Evaluation of carbonation progress of existing concrete structure based on air permeability of concrete cover—a case study in Japan
    K. Imamoto & A. Tanaka

    Lattice Boltzmann simulation of permeability of cement-based materials
    M. Zhang & G. Ye

    Morphological nature of diffusion in cement paste
    N. Ukrainczyk, E.A.B. Koenders & K. van Breugel

    Modeling of moisture distribution in concrete in 3D
    J. Skramlik, M. Novotny & K. Suhajda

    DC and AC measurements of the chloride diffusion coefficient through concrete
    H. Mercado, S. Lorente & X. Bourbon

    Factors affecting AgNO3 colorimetric method for measurement of chloride migration in cement-based materials
    C. Shi, X. Wang, X. An, Q. Li, F. He & C. Chen

    Cement mortars with fly ash and slag—study of their microstructure and resistance to salt ingress in different environmental conditions
    M.A. Climent, J.M. Ortega & I. Sánchez

    Capillary suction and chloride migration in fire exposed concrete with PP-fibre
    J. Albrektsson & R. Jansson

    Effect of chlorides on moisture content and sorption isotherms
    M. Leivo, H. Kuosa, E. Holt, E. Vesikari & R.M. Ferreira

    Accelerated evaluation of corrosion inhibition by means of the integral corrosion test
    C. Andrade & N. Rebolledo

    Ageing process of cementitious materials: Ion transport and diffusion coefficient
    A. Babaahmadi, L. Tang & Z. Abbas

    The interaction of deterioration caused by chloride ingress and carbonation in mortars exposed to cyclic wetting and drying
    J. Backus, D. McPolin & B. Kuen

    Influence of carbonation on the chloride concentration in the pore solution of concrete
    X. Wan, T. Zhao & F.H. Wittmann

    Modified Wedge Splitting Test (MWST)—a simple tool for durability investigations of reinforcement corrosion in cracked concrete
    B. Šavija, E. Schlangen, J. Pacheco & R.B. Polder

    Effect of concrete and binder composition on cracking sensitivity
    K. Kovler, S. Zhutovsky & A. Bentur

    Towards incorporating the influence of cracks in the durability index testing approach
    J. Kanjee, H. Beushausen, M.G. Alexander & M. Otieno

    A model for the prediction of plastic shrinkage cracking in concrete
    W.P. Boshoff, R. Combrinck & J. Maritz

    Durability design of reinforced concrete structures submitted to carbonation by using an probabilistic modelling
    M. Thiéry, V. Baroghel-Bouny & A. Orcesi

    Mix design optimisation—the influence of binder content on mechanical and durability properties of concrete
    M. Angelucci, H. Beushausen & M.G. Alexander

    Durability and service life of reinforced concrete structures under combined mechanical and environmental actions
    T. Zhao, J. Jiang, X. Wan & F.H. Wittmann

    Control of concrete cover depth of reinforced concrete structures for durability
    G. Nganga, M.G. Alexander & H. Beushausen

    Essential parameters for strength-based service life modeling of reinforced concrete structures—a review
    J.O. Ikotun & S.E. Ekolu

    A Virtual Lab for multi-scale modeling of cementitious materials 1
    E.A.B. Koenders, E. Dado & D.B.F. Carvalho

    Model verification, refinement and testing on independent 10-year carbonation field data
    S.O. Ekolu

    Treatment of a stochastic service life prediction model to an evaluation of a distressed two-story RC building
    S.O. Ekolu & M. Allan

    Methodology for including the age effect of concrete with SCMs in results from accelerated testing
    E. Gruyaert & N. De Belie

    Lattice model implementation on alkali silica reaction gel expansion in a reacted concrete medium
    C. Anaç, E. Schlangen & O. Çopuroğlu

    A concrete performance assessment tool for structures with alkali silica reaction
    C. Anaç, O. Çopuroğlu & E. Schlangen

    Relation between mass flow in cement-based composite materials and durability, investigated by means of neutron imaging
    F.H. Wittmann, P. Zhang & T. Zhao

    Modelling and prevention of reinforcement corrosion

    Assessment of some parameters of corrosion initiation prediction of reinforced concrete in Persian Gulf region
    A.A. Ramezanianpour, E. Jahangiri & F. Moodi

    Possibilities and restrictions for the use of stainless steel reinforcement
    U. Nuernberger

    Service life extension of concrete structures by increasing chloride threshold using stainless steel reinforcements
    H. Mahmoud, M.C. Alonso & M. Sanchez

    Working life of cathodic protection systems for concrete structures—analysis of field data
    R.B. Polder, G. Leegwater, D. Worm & W. Courage

    Assessment of critical chloride content in reinforced concrete by Energy Dispersive Spectrometry (EDS) revisited
    J. Pacheco, O. Çopuroğlu, B. Šavija, E. Schlangen & R.B. Polder

    Testing of the chloride threshold values for reinforced concrete structures
    H.E. Sørensen, S.L. Poulsen & E.P. Nielsen

    Protection of steel in concrete using galvanic and hybrid electrochemical treatments
    G. Glass, C. Christodoulou & S. Holmes

    Mechanical behaviour of basalt fibre-reinforced plastics and their durability in an alkaline environment
    S. Müller, M. Butler & V. Mechtcherine

    Towards correlating natural and accelerated chloride-induced corrosion in cracked RC preliminary results
    M. Otieno, H. Beushausen & M.G. Alexander

    Improving concrete durability through the use of corrosion inhibitors
    I.N. Robertson

    Theme 2: Condition assessment of concrete structures
    Degradation assessment and service life aspects

    Conservation of concrete structures in fib Model Code 2010
    S.L. Matthews, T. Ueda & A.B. Vliet

    Non-destructive Building diagnosis in the monitoring and inspection of existing building structures
    A. Walther & A. Hasenstab

    Concrete deterioration in mining structures
    A. Masarira & T.L. Bopape

    Case studies of concrete deterioration in reinforced concrete chimneys
    M. Santhanam

    An investigation into failures and problems of industrial floors on the ground—with an emphasis on case studies
    R.S. Walls & S.E. Ekolu

    Concrete damage in underground structures
    F. Mittermayr, D. Klammer, D. Höllen, M. Dietzel, C. Kurta, A. Leis & M.E. Böttcher

    Managing risk for concrete repair to multi-storey buildings
    P. Storey & J.A. Wium

    Condition assessment and repair strategy for seawater intake structure in Saudi Arabia
    M.K. Rahman, M. Ibrahim, S.M. Shaahid, M. Barry, M. Alkami & M.R. Taha

    Corrosion damage of concrete structures in ammonium nitrate-based environments
    I. Pepenar

    Condition assessment and repair of antenna towers concrete foundations
    I.B. Pecur, N. Stirmer & B. Milovanovic

    Repair and restoration of “Dalle de Verre” concrete windows
    M. Ünal & H.-C. Kühne

    Residual structural performance of a 26-year-old corroded reinforced concrete beam
    W.J. Zhu & R. François

    Experimental and numerical study on the residual strength of deteriorated prestressed concrete bridge beams affected by chloride attack
    Y. Tanaka, T. Shimomura & T. Yamaguchi

    Method to evaluate the residual strength in concrete elements exposed to fire using physic-chemical and microstructural parameters
    E. Menéndez, L. Vega & C. Andrade

    Rehabilitation of a large arch dam: Importance of dam safety surveillance
    L. Hattingh & C. Oosthuizen

    Multiple arch dam: Challenges with the rehabilitation of one of the thin, unreinforced, double curvature arches of the Stompdrift Dam
    J.L. Schoeman & C. Oosthuizen

    Lombardi slenderness coefficient as one of the criteria for the preliminary evaluation of proposed rehabilitation works at Kouga dam
    C. Oosthuizen & C. Mahlabela

    Observations from the calibration of an arch dam model using ambient modal properties
    R. Makha & P. Moyo

    Modal parameter estimation from ambient vibration measurements of a dam using stochastic subspace identification methods
    P. Bukenya, P. Moyo & C. Oosthuizen

    Macroscopic ice lens growth: Observations on Swedish concrete dams
    M. Rosenqvist, K. Fridh & M. Hassanzadeh

    NDE/NDT and measurement techniques

    Strength monitoring of concrete structures by using non destructive testing
    C. Sashidhar, N.V. Ramana & D. Pavan Kumar

    Main challenges of non destructive evaluation of on-site concrete strength
    D. Breysse

    Test method to determine durability of concrete under combined environmental actions and mechanical load
    L. Wang,Y. Yao, Z. Wang, P. Huang & X. Guan

    Structure testing with ultrasonic-echo and impulse radar technique
    C. Sodeikat

    Influences on layer thickness measurements of concrete coatings by mobile NMR on steel-reinforced concrete constructions
    J. Orlowsky & M. Raupach

    Shape factors of four point resistivity method in presence of rebars
    A.J. Garzon, C. Andrade, N. Rebolledo, J. Fullea, J. Sanchez & E. Menéndez

    Statistical analysis of electrical resistivity as a tool for estimating cement type of 12-year-old concrete specimens
    J. Pacheco, O. Morales-Nápoles & R.B. Polder

    Measurement and visualisation of the actual concrete resistivity in consideration of conductive layers and reinforcement bars
    K. Reichling & M. Raupach

    Practical operation of data-logging covermeters and the interpretation of results
    J.F. Fletcher & C.I. Woolhouse

    Modern damage detection by using static assessment methods for efficient rehabilitation
    F. Scherbaum, J. Mahowald, D. Waldmann, S. Maas & A. Zürbes

    Strengthening of reinforced concrete slabs built around the year 1910
    S. Gmainer & J. Kollegger

    Analysis of the strain transfer mechanism between a truly distributed optical fiber sensor and the surrounding medium
    J.M. Henault, J. Salin, G. Moreau, M. Quiertant, F. Taillade, K. Benzarti & S. Delepine-Lesoille

    Investigation of the crack opening and damage monitoring of textile reinforced cementitious composites using Digital Image Correlation
    E. Tsangouri & D. Van Hemelrijck

    A non-destructive test method for the performance of hydrophobic treatments
    U. Antons, J. Orlowsky & M. Raupach

    Examination of the hydration of cementitious binders with fly ash and blast furnace slag using in-situ XRD
    A. Vollpracht & W. Brameshuber

    Passive infrared thermography as a diagnostic tool in civil engineering structural material health monitoring
    M. Scott, H. Luttig, M. Strydom, M. Gonelli, D. Kruger, R.G.D. Rankine & T. Broodryk

    Active thermography as a quality assurance for structural engineering
    F.U. Vogdt, F. Schaudienst & M. Walsdorf-Maul

    Infrared Thermography applications for the quality control of concrete elements strengthened with FRP
    G. Concu, B. De Nicolo, C. Piga & N. Trulli

    Structural reliability targets for assessment of ageing infrastructure
    M. Kabani, P. Moyo & M.G. Alexander

    Impact of mobile cranes on medium span bridges
    V. Gaya & P. Moyo

    Materials and structural assessments

    Lessons from the Big Dig
    D.W. Fowler

    Differing results from inspection and load rating of Sikanni Chief Bridge
    P. Phillips & R. El-Hacha

    A new life for ultra low strength concrete, Brisbane City Hall
    A.N. van Grieken

    Testing, maintenance and reinforcement of the Pietrastretta RA05 motorway viaduct
    A. Contin, E. Viviani, M. Cavetti & M. Viviani

    Residual structural performance of deteriorated RC bridge girder with reinforcement corrosion
    T. Shimomura, Y. Tanaka & T. Yamaguchi

    Residual shear capacity of continuous reinforced concrete beams
    Y. Yang, J.A. den Uijl & J.C. Walraven

    Shear assessment of solid slab bridges
    E.O.L. Lantsoght, C. van der Veen & J.C. Walraven

    Upgrading of bridges across rivers to resist ship impact
    R. Wensauer, M. Keuser, R. Lenner & W. Keuser

    Through-life management of LPS dwelling blocks, including their structural assessment for accidental loads and actions
    S.L. Matthews & B. Reeves

    Condition assessment and repair of concrete tunnel lining after fire
    K. Mavar & E. Marušić

    Theme 3: Concrete repair, rehabilitation and retrofitting
    Repair methods, materials and techniques

    Random thoughts on concrete repair specifications’ ills and treatment prescriptions
    R.M. Snover, A.M. Vaysburd, B. Bissonnette & D.F. Burke

    Concrete repair as an engineering task: An approximate solution to an exact problem
    A.M. Vaysburd, P.H. Emmons & B. Bissonnette

    Concrete repair materials, polymers and green chemistry—how far synergistic are they?
    A.K. Chatterjee

    Performance and service life of repairs of concrete structures in The Netherlands
    J.H.M. Visser & Q.F. van Zon

    Development of repair mortars for the restoration of natural stone in cultural heritage
    P. Ramge & H.-C. Kühne

    Maintenance of aged concrete structures of the Hong Kong Housing Authority
    H.W. Pang, B. Au & K.C. Lau

    Sustainability-focused maintenance strategy for the public rental housing estates in Hong Kong
    S.T. Chan, H.W. Pang & B. Au

    The effect of pulse current on energy saving during Electrochemical Chloride Extraction (ECE) in concrete
    T.R. Sun, M.R. Geiker & L.M. Ottosen

    Modern repair technique for an ancient temple
    R. Anupadma, M.S. Mathews, G.A. Rao & T. Satyamurthy

    Repair of deteriorated concrete containing recycled aggregates
    A. Badr & L. McGivern

    Physico-chemical properties and durability of polymer modified repair materials
    I.L. Tchetgnia-Ngassam, F. Lespinasse, S. Marceau & T. Chaussadent

    Polymer-modified Self-Compacting Concrete (PSCC) for concrete repair
    K.A. Bode & A. Dimmig-Osburg

    Effect of weathering on polymer modified cement mortars used for the repair and waterproofing of concrete
    A. Krishnan, P.S. Nair & R. Gettu

    Case history of polymer-modified cementitious membrane used to protect new and repair concrete
    P. Nieuwoudt, P. Zaffaroni & C. Pistolesi

    Use of starch modified concrete as a repair material
    A.A. Akindahunsi, H.C. Uzoegbo & S.E. Iyuke

    Mitigation of ASR affected concrete in Boston, MA, USA: A case study
    A.F. Bentivegna, T. Drimalas, J.H. Ideker & S. Hayman

    Shrinkage cracking of steel fibre-reinforced and rubberized cement-based mortars
    T.-H. Nguyen, A. Toumi & A. Turatsinze

    Development of a liquid bio-based repair system for aged concrete structures
    V. Wiktor, A. Thijssen & H.M. Jonkers

    Development of bio-based mortar system for concrete repair
    M.G. Sierra-Beltran & H.M. Jonkers

    Full scale application of bacteria-based self-healing concrete for repair purposes
    H.M. Jonkers & R. Mors

    Evaluation of crack patterns in SHCC with respect to water permeability and capillary suction
    C. Wagner, A. Dollase & V. Slowik

    Cathodic protection of concrete structures with thermally sprayed sacrificial zinc anodes—critical parameters for the protective ability of the sprayed-on anode
    B. Sederholm, A. Selander & J. Trägårdh

    Repair of concrete members of seaside apartment buildings deteriorated by steel corrosion
    W. Schwarz, F. Müllner & A. van den Hondel

    Galvanic corrosion protection of steel in concrete with a zinc mesh anode embedded into a solid electrolyte (EZA): Operational data and service time expectations
    W. Schwarz, F. Müllner & A. van den Hondel

    The use of discrete sacrificial anodes in reducing corrosion rate in chloride contaminated reinforced concrete
    P.A. Arito, H. Beushausen, M.G. Alexander & M. Otieno

    Bonded concrete overlays and patch repairs

    Concrete overlays for pavement rehabilitation summary
    P.C. Taylor & D. Harrington

    Optimizing the steel fibre and mesh combinations used in repairing existing pavements with Ultra Thin Continuously Reinforced Concrete Pavements (UTCRCP)
    E.P. Kearsley & H.F. Mostert

    Effect of repair materials on durability indexes of concrete
    P. Parbhoo, H. Lyimo & S.O. Ekolu

    Concrete heritage: Tentative guidelines for the ‘Patch Restoration Method’
    J. Valença, C. Almeida & E.S. Júlio

    Fatigue crack propagation model for bi-material interfaces
    S. Ray & J.M. Chandra Kishen

    Mechanical properties of old concrete—UHPFC interface
    B.A. Tayeh, B.H.A. Bakar & M.A.M. Johari

    Bond characteristics of substrate concrete and repair materials
    M.I. Khan, T.H. Almusallam, S.H. Alsayed, Y.A. Al-Salloum & A.A. Almosa

    Investigations on the performance of concrete repair mortars in composite specimen tests
    P. Ramge & H.-C. Kühne

    Topography evaluation methods for concrete substrates: Parametric study
    L. Courard, A. Garbacz & B. Bissonnette

    Modeling water absorption of the concrete substrate in concrete repairs
    M. Luković, B. Šavija, G. Ye & J. Zhou

    Textile reinforced sprayed mortar for the repair of hydraulic engineering structures
    J. Orlowsky & M. Raupach

    Shrinkage stress damage effect in concrete patch repair
    M.A. Shazali, M.K. Rahman & M.H. Baluch

    Performance of engineered cementitious composite for concrete repairs subjected to differential shrinkage
    J. Zhou, G. Ye & T. Sui

    Cracking characteristics of cement mortars subjected to restrained shrinkage
    M. Chilwesa & H. Beushausen

    Structural repairs and strengthening

    Retrofitting of Bridge B421 over the Olifants River after flood damage
    W. Findlay & F. Kromhout

    Strengthening of traffic barriers on bridges along the Kaaimans Pass
    B.P. Durow, G.A. Visser & E.J. Kruger

    Assessment and strengthening of R/C hospital building—case study
    O.M.A. Daoud

    Repair and dynamic-based condition assessment of impact damage to a freeway overpass bridge near Mossel Bay, South Africa
    A.A. Newmark, P. Moyo & E.J. Kruger

    Upgrading of three historic arch bridges over the Orange River near Keimoes, South Africa
    A.A. Newmark, E.J. Smuts, E.J. Kruger & E. Lourens

    Analysis and retrofitting design of a single-span R.C. bridge
    D. Meloni, B. De Nicolo & A. Cabboi

    Verification of bridge repair assisted by numerical simulation
    V. Cervenka & J. Cervenka

    Repairing preloaded square columns by ferrocement jackets made of non-structural WWMs
    S.M. Mourad & M.J. Shannag

    Experimental results of RC columns strengthened with Fibre Reinforced Cementitious Mortars
    P. Colajanni, F. De Domenico, N. Maugeri, A. Recupero, N. Spinella & G. Mantegazza

    The enhancement of performance on road tunnel lining by epoxy injection and carbon fiber reinforcement
    J.H. Choo, H.K. Kim, T.J. Lee, S.W. Park & T.G. Yoon

    Strengthening of R/C Beams using Ultra High Performance Concrete
    E. Fehling & M. Alkhoury

    Experimental investigation on the effectiveness of patch repair on the flexural behavior of corroded post-tensioned beams
    M. Shekarchi, F. Ghasmzadeh, S. Sajedi, S.A. Razavizadeh & M.J. Mohebbi

    Numerical investigation on the effectiveness of patch repair on the flexural behavior of corroded post-tensioned beams
    M. Shekarchi, S. Sajedi, F. Ghasemzadeh, S.A. Razavizadeh & A. Manafpour

    Flexure retrofitting of ribbed one-way reinforced concrete slabs through external reinforcing bars
    F. Minelli & G.A. Plizzari

    Analysis of structural rehabilitation of historical masonry with reinforced concrete
    N.G. Maldonado, P.E. Martín & I.A. Maldonado

    Dual function carbon fibre strengthening and cathodic protection anode for reinforced concrete structures
    C.V. Nguyen, P.S. Mangat, P. Lambert, F.J. O’Flaherty & G. Jones

    Repairing and retrofitting prestressed concrete water tanks in seismic areas
    K.C. Kuebitz & T. Bloomer

    Post-installed bars under low installation temperatures
    C. Mahrenholtz, R. Eligehausen, W. Fuchs & J. Hofmann

    Application of post-installed anchors for seismic retrofit of RC beam-column joints: Design and validation
    G. Genesio, R. Eligehausen, A. Sharma & S. Pampanin

    Retrofitting techniques and FRP systems

    Anchoring FRP laminates for the seismic strengthening of RC columns
    R. Sadone, M. Quiertant, E. Ferrier, S. Chataigner & J. Mercier

    Confinement of short concrete columns with CFRP wraps subjected to concentric and eccentric loading
    Asad-ur-Rehman Khan & S. Fareed

    Corner beam-column joints retrofitting with HPFRC jacketing
    C. Beschi, P. Riva & A. Meda

    Cracking behaviour of RC members strengthened with CFRP strips
    W. Ibrahim, J. Hegger & A. Sherif

    Shear strengthening of RC hollow box bridge columns using FRP and RC jacketing
    M. Fischinger & T. Isaković

    Flexural performance of repaired reinforced concrete beam containing DFRCC materials
    S.F.U. Ahmed

    Retrofitting bridges to accommodate single point interchanges on the Gauteng Freeways Improvement Project
    R. Nel, S.S. Kramer & R.G. Miller

    Investigation of shear bonding behavior between base concrete and polymer-modified mortar with CFRP grid
    J. Zhang, K. Ohno, K. Uji, A. Ueno & Y. Ogawa

    The influence of externally bonded longitudinal TRC reinforcement on the crack pattern of a concrete beam
    S. Verbruggen, J. Wastiels, T. Tysmans, O. Remy & S. Michez

    Retrofitting of structural concrete after damage caused by impact or explosion
    M. Keuser, R. Lenner & M. Fuchs

    Debonding of external CFRP plates from RC structures caused by cyclic loading effects
    A.J. Badenhorst & G.P.A.G. van Zijl

    An improved damage model to predict the failure process in FRP/concrete assemblies
    K. Benzarti, G. Ruocci, P. Argoul & F. Freddi

    Mechanical fastening of multi-directional CFRP laminates in concrete
    P. Desnerck, L. Vasseur & H. Van Hoecke

    TRM and UHPFRC: Retrofitting solutions for structural elements
    A. Magri, M. Colombo & M. di Prisco

    Analytical study on behavior of External shear wall and Internal shear wall as lateral load resisting systems for retrofitting a ten storey building frame
    S.V. Venkatesh, H. Sharada Bai & S.P. Divya

    Retrofit of a reinforced concrete building with lead rubber bearing in Iran
    M.J. Golzar, Y.Y. Nia & M.A.J. Golzar

    Theme 4: Developments in materials technology, assessment and processing

    Influence of intensive vacuum mixing on the compressive strength of cementitious materials
    J. Dils, G. De Schutter & V. Boel

    Underwater concreting by using two-stage concrete (Laboratory study)
    H.S. Abdelgader & A.S. El-Baden

    Robustness improvement of fresh concrete and mortar performance for challenging casting environments with focus on sub-Saharan Africa
    W. Schmidt, N.S. Msinjili, H.-C. Kühne, M.V.A. Florea, G. Senthil Kumaran & P. Nibasumba

    Technical-economical consequences of the use of controlled permeable formwork
    R. Torrent, A. Griesser, F. Moro & F. Jacobs

    An investigation on effect of aggregate grading on fresh properties of Self-Consolidating Mortar
    N.A. Libre, A. Pourzarabi, A.M. Etemadrezaei & M. Shekarchi

    Strength of recycled aggregate concrete for structural uses
    S.C. Paul & G.P.A.G. van Zijl

    Concrete containing steel slag aggregate: Performance after high temperature exposure
    I. Netinger, M.J. Rukavina, D. Bjegović & A. Mladenovič

    Completely Recyclable Concrete: How does the cement paste behave during reclinkering?
    M. De Schepper, R. Snellings, N. De Belie, K. De Buysser & I. Van Driessche

    Influence of particle packing on the strength of ecological concrete
    S.A.A.M. Fennis, J.C. Walraven & J.A. den Uijl

    Development of geo-polymer based Ductile Fibre Reinforced Cementitious Composites (DFRCC)
    S.F.U. Ahmed, M. Hossain & Y.Y. Lu

    Load-deformation behavior of hybrid elements of PCC and CC under flexural stress
    A. Flohr & A. Dimmig-Osburg

    Fatigue behaviour of self-compacting concrete
    S. Korte, V. Boel, W. De Corte & G. De Schutter

    Velocity profile of self compacting concrete and traditional concrete flowing in a half open pipe
    H.D. Le, G. De Schutter, E.H. Kadri, S. Aggoun, J. Vierendeels & P. Troch

    Deformation of concrete subject to freeze-thaw cycles combined with chloride salt solution
    Z. Wang, Y. Yao, L. Wang & Y. Cao

    Thermal expansion of high-performance cement paste and mortar at early age
    M. Wyrzykowski & P. Lura

    Development of new lime binder for building bio-aggregate materials
    T.M. Dinh, C. Magniont, M. Coutand & G. Escadeillas

    ‘Buffer’ effects of natural zeolites in blended cements
    R. Snellings

    Evaluation of steel fiber distribution in a concrete matrix
    S.A. Yehia

    Contribution to study of the self-healing effect activated by crystalline catalysts in concrete structures when subjected to continuous exposure to water
    E.M. Takagi, M.G. Lima & P.R.L. Helene

    Strength behaviour of clay-cement concrete and quality implications for low-cost construction materials
    F. Solomon & S. Ekolu

    Characterisation and description of the structure of metakaolin by total scattering, density functional theory, and X-ray spectroscopy
    C.E. White, J.L. Provis, D.P. Riley, Th. Proffen, L.M. Perander & J.S.J. van Deventer

    The comparison between the cracking behaviour of bending and tension for Strain Hardening Cement-based Composites (SHCC)
    P.D. Nieuwoudt & W.P. Boshoff

    Influence of temperature on the hydration of blended cements
    B. Lothenbach & G. Le Saout

    Thermodynamic modeling of sulfate interaction
    B. Lothenbach, W. Kunther & A.E. Idiart

    An ongoing investigation on modeling the strength properties of water-entrained cement-based materials
    L.P. Esteves

    Theme 5: Concrete technology and structural design

    Concrete knowledge improvement in sub-Saharan Africa
    N.S. Msinjili, W. Schmidt, G.J.G. Gluth, M.V.A. Florea, G. Senthil Kumaran, A.A. Akindahunsi, H.C. Uzoegbo & I.S. Oslaković

    Evaluation of concrete quality in Libya
    M.S. Alazhari & M.M. Al Shebani

    Who will be making high performance concrete?
    M. Khrapko

    The role of the structural engineer in the design of low embodied energy concrete-frame buildings
    R. Muigai, M.G. Alexander & P. Moyo

    Synthetic climate modeling for estimating the impact of global warming on construction materials
    D. Breysse, M. Chaplain & A. Marache

    Resistance factors for shear capacity of ordinary and lightweight R/C beams
    A.S. Nowak & A.M. Rakoczy

    Global safety factor for slender reinforced concrete structures
    D.L. Allaix, V.I. Carbone & G. Mancini

    Time-dependent analysis of segmentally constructed cantilever bridge comparing two different creep models
    G.F. Giaccu, D. Solinas & G.P. Gamberini

    Author index


    Professor Mark G. Alexander, Department of Civil Engineering, University of Cape Town, South Africa
    Dr Hans-Dieter Beushausen, Department of Civil Engineering, University of Cape Town, South Africa
    Dr Frank Dehn, MFPA Leipzig, Germany
    Dr Pilate Moyo, Department of Civil Engineering, University of Cape Town, South Africa