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).
Preface
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
Biography
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