Durability and Crack control in FRC RC elements: an experimental study

Title: Durability and Crack control in FRC RC elements: an experimental study
Author(s): F. Minelli, G. Tiberti, and G.A. Plizzari
Paper category : conference
Book title: International RILEM Conference on Advances in Construction Materials Through Science and Engineering
Editor(s): Christopher Leung and K.T. WAN
ISBN: 978-2-35158-116-2
e-ISBN: 978-2-35158-117-9
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 435 - 443
Total Pages: 9
Nb references: 18
Language: English

Abstract: The prediction and understanding of the cracking behavior in reinforced concrete has been widely investigated in the past over 40 years. It is of relevance the study of this phenomenon also in structural members where the total reinforcement consists of a proper combination of traditional rebars and fibers. In fact, in such fibrous RC elements, the adoption of tougher materials in tension (fiber reinforced concrete-FRC) determines, in general, a more distributed crack pattern characterized by narrower cracks. It is worth noticing that the expected smaller crack widths in addition to a low concrete porosity (which strictly depends on the water/cement ratio) is of paramount importance for enhancing structural durability.
The present paper describes results from a collaborative experimental program currently ongoing at the University of Brescia and at the University of Toronto, aimed at studying crack formation and development in FRC structures. A set of tensile tests were carried out on tensile members by varying the concrete strength, the reinforcement ratio and the fiber content.

Online publication: 2011-10-31
Publication type : full_text
Public price (Euros): 0.00