Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 91, Issue -, Pages 164-170Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2015.05.028
Keywords
Natural fibers; Shrinkage; Cracking; Cement; Composite; Concrete
Categories
Funding
- UANL [PAICYT GIT006-09]
- Mexican Secretariat of Public Education (SEP) [P/PIFI-2009-19MSU0011T-16]
Ask authors/readers for more resources
The main objective of this study is to control restrained plastic shrinkage cracking through the addition of natural and PVA fibers in a cement-based composite. Two types of natural fibers (flax and agave lechuguilla) as well as synthetic fibers (PVA) were investigated at volume fractions of 0.1% and 0.7%. 38 prismatic mortar specimens were freshly cast on top of a grooved and hard concrete substrate, providing a bottom restraint; this resulted in cracking in the freshly placed overlay, which was detected as a function of time. The effectiveness of the fibers was evaluated by considering reducing the number of cracks and total crack area under these conditions. The results obtained show that both natural fibers were effective in controlling restrained plastic shrinkage cracking like the commercially available PVA fibers; the total crack areas were also reduced by at least 93% compared with plain mortar specimens. (C) 2015 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available