Title:
Permeability Characteristics of Polypropylene Fiber Reinforced Concrete
Author(s):
Parviz Soroushian, Faiz Mirza, and Abdulraman Alhozaimy
Publication:
Materials Journal
Volume:
92
Issue:
3
Appears on pages(s):
291-295
Keywords:
chlorides; concretes; permeability; plastics, polymers, and resins; polypropylene fibers; pozzolans; Materials Research
DOI:
10.14359/1122
Date:
5/1/1995
Abstract:
The effects of collated fibrillated polypropylene fibers at conventionally low volume fractions on the permeability of concrete materials with different binder compositions were investigated experimentally. Different binder compositions had pozzolans (fly ash, silica fume, or ground granulated furnace slag) as partial substitutions for portland cement, or had a latex polymer added to the mixture. Sufficient replications of tests were conducted to drive statistically reliable conclusions. Polypropylene fibers, used in laboratory conditions that do not promote shrinkage cracking, had not statistically significant effect on the chloride permeability of concrete materials. They also did not interact with the binder composition in deciding permeability in the sense that the generally positive effects of pozzolans and latex on reducing concrete permeability were also valid to the extent in the presence of polypropylene fibers.