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79. Model for calculation of creep and shrinkage of fiber reinforced concrete



Title: 79. Model for calculation of creep and shrinkage of fiber reinforced concrete
Author(s): D. Spura, J. Vodicka, J. Kratky
Paper category : conference
Book title: 6th International RILEM Symposium on Fibre Reinforced Concretes
Editor(s): M. di Prisco, R. Felicetti and G.A. Plizzari
Print-ISBN: 2-912143-51-9
e-ISBN: 2912143748
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 895 - 902
Total Pages: 8
Nb references: 6
Language: English


Abstract: Application of fiber reinforced concrete (FRC) to real structures, structural elements and members (not only floors) brings many specific problems to designers. The latest prediction models (e.g. B3, EC2 ...) determine only volume changes of plain concrete. It is possible to expect that the models for determining creep and shrinkage of plain concrete should be supplemented with the influence of another component of composite, i.e., fibers. Probably, necessary time to design such a model will take more time considering that above mentioned models were reached during many years of research work.
The aim of the submitted paper is the prediction model of volume changes of FRC based on a hypothesis in which creep proceeded linearly in dependence on ratio of compression strength of FRC to compression strength of plain concrete with the same composition (shrinkage is based on the dependence of tensile strength ratio of FRC). This hypothesis is based on results of volume changes measurements of FRC (especially specimens with steel fibers), measured since 1988 (main results since 1995). The results were measured in co-operation of Warsaw University of Technology (PW), Klokner Institute (KU) and Faculty of Civil Engineering CTU in Prague.


Online publication: 2004-08-30
Publication type : full_text
Public price (Euros): 0.00