Permeability of UHPFRC under high stresses

Title: Permeability of UHPFRC under high stresses
Author(s): J.-P. Charron, E. Denarié, E. Brühwiler
Paper category : conference
Book title: International RILEM Symposium on Concrete Science and Engineering: A Tribute to Arnon Bentur
Editor(s): J. Weiss, K. Kovler, J. Marchand, and S. Mindess
Print-ISBN: None
e-ISBN: 2912143926
Publisher: RILEM Publications SARL
Publication year: 2004
Nb references: 16
Language: English

Abstract: Ultra High Performance Fiber Reinforced Concretes (UHPFRC) present outstanding mechanical properties and a very low permeability which make them very attractive for the rehabilitation of existing structures or new conceptions. The main difference between an ultra high performance and a conventional FRC is the significant tensile strain hardening (multiple cracking stage) that can be used to optimize the mechanical performance of hybrid structural elements in rehabilitation works. In order to validate these assumptions, water permeability tests were carried out on specimens of a UHPFRC produced without heat treatment and submitted to various levels of deformation in microcracking state. Based on this study, it was possible to define the maximal tensile deformation whereby the water permeability of the material is acceptable for various exposures.

Online publication: 2004-03-25
Classification: New Materials
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143926.088