Effects of chemical exposure on bond between synthetic fiber and cementitious matrix

Title: Effects of chemical exposure on bond between synthetic fiber and cementitious matrix
Author(s): P. Kabele, L. Novák, J. Nemecek, L. Kopecký
Paper category : conference
Book title: ICTRC'2006 - 1st International RILEM Conference on Textile Reinforced Concrete
Editor(s): J. Hegger, W. Brameshuber and N. Will
Print-ISBN: 2-912143-97-7
e-ISBN: 2351580087
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 91 - 99
Total Pages: 9
Nb references: 10
Language: English

Abstract: Since fiber reinforced composites are often used in an aggressive environment (bridge decks, drainage pipes etc.), it is necessary to estimate their durability and ability to maintain superior mechanical properties in such conditions. One microscale mechanism that has a dominant influence on achieving desirable mesomechanical behavior, such as multiple cracking, is the fiber-matrix interfacial bond. In the present study, the effect of chloride attack and calcium leaching on the bond properties is experimentally investigated. To this end, a series of tests is performed, in which a single fiber is pulled out of the cementitious matrix under displacement control. The tests are carried out on reference specimens that were kept under room conditions and on specimens that were exposed to accelerated degradation. Both, chemical and frictional bond, are calculated from the measured load-displacement curves, and the effect of environmental exposure on these parameters is clarified.

Online publication: 2006-06-02
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580087.009