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Proceedings pro095 : International RILEM Conference on Application of Superabsorbent Polymers and Other New Admixtures in Concrete Construction


Title: International RILEM Conference on Application of Superabsorbent Polymers and Other New Admixtures in Concrete Construction
Edited by Viktor Mechtcherine and Christof Schroefl
ISBN: 978-2-35158-147-6
e-ISBN: 978-2-35158-148-3
Publisher: RILEM Publications SARL
Pages: 394
Publication date: 2014

Superabsorbent polymers (SAPs) are a remarkable example of multipurpose additive in cement-based materials. SAPs enable the discrete control of water availability and porosity formation, they can be used in modifying rheology, mitigating plastic shrinkage and self-desiccation, protecting concrete from frost damage, supporting the self-healing of concrete, and assisting in several other ways. The goal of the conference has been to provide a thourogh overview of the research and developments on use of SAPs and their working mechanisms in cement-based systems. Other admixtures covered at the conference include, among others, internal curing agents, shrinkage reducers, stabilisers, and agents to control the pore system. Contributions deal with insights gained from experimental studies, theory, or modelling. A wide range of concrete properties affected by the new admixtures are treated: rheology, shrinkage and shrinkage induced cracking, mechanical properties, durability, etc. Special focus is directed at chemical and other approaches in characterising the working mechanisms of the admixtures and improving their performance.

The scientific sponsor of the conference is Technical Committee 225-SAP “Application of superabsorbent polymers in concrete construction”, initiated within RILEM in 2007. The activities of this Technical Committee are about to come to an end in the form of this conference. A state-of-the-art report has been compiled and published in 2012 by Springer.


Contents


Preface
Author(s): Viktor Mechtcherine and Christof Schroefl
Pages: XIX-XX

1. Construction Chemicals


Additive-additive interactions in mortar and concrete – Can we predict them?
Author(s): J. Plank, C. Tiemeyer
Pages: 3-13

Computational chemistry as a tool for the development of novel construction chemicals
Author(s): J. Süßmuth, M. Schwotzer, A. Gerdes
Pages: 15-24

Chemical aspects of superabsorbent polymers for use in cement-based mortars: A review
Author(s): C. Schroefl, V. Mechtcherine
Pages: 25-35

Comparing pH-sensitive with commercial superabsorbent polymers in cementitious materials
Author(s): A. Mignon, D. Snoeck, S. Van Vlierberghe, P. Dubruel, N. De Belie
Pages: 37-46

A novel bio-based curing compound for cement-based materials
Author(s): J. Zlopasa, E. A. B. Koenders, S. J. Picken
Pages: 47-54

Indicative tests of the effect of fly ash – β cyclodextrin composite on concrete workability and strength
Author(s): B. D. Ikotun, G. C. Fanourakis, S. Mishra
Pages: 55-64

2. Cement Hydration and Microstructure


Hydration of Ordinary Portland cement: Interaction with selected admixtures
Author(s): J. Neubauer
Pages: 67-70

Internal-curing water distribution in concrete at early ages: Experiments and modelling
Author(s): P. Lura, M. Wyrzykowski
Pages: 71-80

3D-void analysis of high performance concretes containing superabsorbent polymers (SAP)
Author(s): B. J. Olawuyi, W. P. Boshoff
Pages: 81-91

3. Rheology


Evolution of rheological properties of fresh concrete enriched with superabsorbent polymers (SAP) in time at various temperatures
Author(s): E. Secrieru, C. Schroefl, V. Mechtcherine
Pages: 95-104

Study on macroscopic viscosity for prediction of the swelling capacity of salt-insensitive superabsorbent polymers in cementitious materials
Author(s): A. Assmann, O. Mazanec, D. Eissmann
Pages: 105-114

Influence of PAE, SMD and PCE superplasticizers on the rheological properties of mortars and concretes
Author(s): A. Kraus, O. Mazanec, J. Dengler, N. Hillesheim, J. Bokern
Pages: 115-126

Bioplasticizer for concrete
Author(s): F. Martirena, Y. Rodriguez-Rodriguez, C. Gonzalez, R. Gonzalez, Y. Alvarado-Capó
Pages: 127-138

Study on workability and pumpability of self-consolidating concrete used in bridge deck-girder connection application
Author(s): Q. Cao, K. H. Khayat
Pages: 139-148

4. Volume Changes


Influence of shrinkage-reducing admixtures on shrinkage and mechanical as well as durability related properties of concrete
Author(s): P. Schäffel
Pages: 151-157

Hydroxyl organic compounds to reduce shrinkage deformations of concrete
Author(s): V. R. Falikman, A. Y. Vainer
Pages: 159-168

Effect of self-desiccation and internal curing with superabsorbent polymers on the thermal expansion coefficient of HPC
Author(s): M. Wyrzykowski, P. Lura
Pages: 169-178

Cracking potential of internally cured concrete made at various water to cement ratios
Author(s): S. Zhutovsky, K. Kovler
Pages: 179-186

5. Autogenous Shrinkage


Examining the “time-zero” of autogenous shrinkage in cement pastes at low water cement ratio
Author(s): H. Huang, G. Ye
Pages: 189-200

Evaluation of superabsorbent polymers for use in cementitious systems for the purpose of mitigating autogenous shrinkage
Author(s): A. E. Miller, T. J. Barrett, W. J. Weiss
Pages: 201-210

Effect of SAP on the autogenous shrinkage and compressive strength of high-strength fine-grained concrete
Author(s): E. F. Silva, M. A. R. Manzano, A. N. M. Lopes, R. D. Toledo Filho
Pages: 211-219

On challenges of interpreting the internal curing (IC) effect on autogenous shrinkage of concrete when using SAP as IC agent
Author(s): L. Dudziak, V. Mechtcherine
Pages: 221-232

6. Time Dependency and Fire Resistance


Time dependent behavior of SAP modified concrete
Author(s): H. W. Reinhardt, A. Assmann
Pages: 235-243

Measures for autogenous shrinkage compensation and their influence on selected durability properties
Author(s): H. Weicken, L. Lohaus
Pages: 245-256

Effects of superabsorbent polymers on the behavior of UHPC subjected to high temperatures
Author(s): M. Saravanja, S. Anders
Pages: 257-264

7. Freezing-and-Thawing Resistance


Comparison of scaling resistance of concretes with different types of superabsorbent polymers
Author(s): S. Kusayama, H. Kuwabara, S.-I. Igarashi
Pages: 267-277

Freezing and thawing resistance of high performance concrete incorporating superabsorbent polymer
Author(s): H. Dong, G. Ye
Pages: 279-289

Hydrophobicity and superhydrophobicity in Portland cement based systems
Author(s): S. W. Muzenski, I. Flores-Vivian, M. I. Kozhukhova, S. M. Rao, K. Sobolev
Pages: 291-300

8. Mineral Modifications


Evaluation of mechanical properties of cementitious composites with sugar cane bagasse ash
Author(s): P. G. Lamezon de Pádua, T. H. Panzera, M. T. Paulino Aguilar
Pages: 303-309

Crystalline admixtures in cementitious composites: From porosity reducers to catalysts of self healing
Author(s): L. Ferrara
Pages: 311-324

Thermal insulation based on evacuated aggregates – Limits of performance
Author(s): L. Osterhus, F. Schmidt-Döhl
Pages: 325-334

Studying the strength and durability parameters of geo-polymer concrete with the combination of fly ash and slag – the by-products of industries
Author(s): A. Shah, C. B. Shah
Pages: 335-342

9. Concrete Technology


Influence of SAP on the performance of concrete and its application in Chinese railway construction
Author(s): C. Zhu, X. Li, Y. Xie
Pages: 345-354

Service life estimation of commercially produced internally cured, high performance concrete
Author(s): T. J. Barrett, A. E. Miller, A. R. Zander, W. J. Weiss
Pages: 355-364

Self-compacting concrete for pavements
Author(s): R. Breitenbücher, D. Sarmiento, F. Holzmann
Pages: 365-374

How to seal and heal cracks in cementitious materials by using superabsorbent polymers
Author(s): D. Snoeck, P. Dubruel, N. De Belie
Pages: 375-384

Robust flowable concrete with viscosity agents
Author(s): S. Grünewald, J. C. Walraven
Pages: 385-394