Developing Fiber Applications in Structural Concrete

Title: Developing Fiber Applications in Structural Concrete
Author(s): Jerry H. Morton
Paper category : conference
Book title: International RILEM Workshop on High Performance Fiber Reinforced Cementitious Composites in Structural Applications
Editor(s): G. Fischer and V. C. Li
Print-ISBN: 2-912143-93-4
e-ISBN: 2912143942
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 195 - 203
Total Pages: 9
Nb references: 9
Language: English

Abstract: Fiber-reinforced cement-based materials are being intensively investigated for a variety of applications. Experimental results that demonstrate improved properties for high-performance concrete are presented for an alkaline-stable specialty cellulose fiber. Extrapolation of these results is made to predict improved performance in structural applications. These improved concrete properties include low shrinkage cracking, excellent freeze/thaw performance, high toughness, improved fire resistance, and reduced rate of water absorption. These fibers have high tensile and elastic moduli, and very small diameters. The low denier of these fibers lead to close fiber spacing at relatively low addition levels. The high surface area and hydrophilic nature of these fibers enhance dispersion and bonding within the cementitious matrix. The anticipated use of these fibers in structural applications is in combination with other reinforcing elements such as rebar or steel fibers. These demonstrated performance attributes would lead to less cracking, reduced fluid penetration, lower spalling, reduced aggregate segregation, and improved durability in precast, structural concrete. The workability of fresh concrete is not affected by cellulose fibers, as can be the case with other fibers.

Online publication: 2005-05-15
Classification: Durability
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143942.021