Shrinkage and impact resistance of high strength concrete with polypropylene fibers
Joint Authors
Imam, Ali A.
Mutawalli, Ibrahim M.
Shahin, Amr A. F.
Source
Housing and Building National Research Center Journal
Issue
Vol. 4, Issue 2 (31 Aug. 2008), pp.37-45, 9 p.
Publisher
Housing and Building National Research Center
Publication Date
2008-08-31
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Topics
Abstract EN
Current trends in construction projects require the use of high strength concrete.
Achieving such task mandates the use of proportionally high cement content, which comes with a band of problems such as high rate of plastic shrinkage and rapid development of micro-cracks.
TheB focus of the present investigation is the differences in mechanical properties of high-strength concrete and ordinary strength concrete and the effect of using polypropylene fibers in the manufacturing of high-strength concrete.
Three mixtures of concrete were cast to be representative of ordinary concrete, high strength concrete with and without polypropylene fibers.
The samples were tested for compressive strength at 7, 28 and 90 days and splitting tensile strength at 7 and 28 days.
Plastic shrinkage was monitored for 24 hours immediately after casting and impact resistance was determined after 28 days.
The results indicate that high strength concrete with and without polypropylene fibers has better mechanical properties than ordinary concrete especially for compressive strength, tensile strength and impact.
The plastic shrinkage for high strength without polypropylene fibers was higher than that of ordinary concrete.
The study signifies that using polypropylene fibers can improve plastic shrinkage and reduce the formation of micro-cracking of high strength concrete.
Moreover, the fibers significantly improve concrete impact resistance.
American Psychological Association (APA)
Shahin, Amr A. F.& Imam, Ali A.& Mutawalli, Ibrahim M.. 2008. Shrinkage and impact resistance of high strength concrete with polypropylene fibers. Housing and Building National Research Center Journal،Vol. 4, no. 2, pp.37-45.
https://search.emarefa.net/detail/BIM-32748
Modern Language Association (MLA)
Shahin, Amr A. F.…[et al.]. Shrinkage and impact resistance of high strength concrete with polypropylene fibers. Housing and Building National Research Center Journal Vol. 4, no. 2 (Aug. 2008), pp.37-45.
https://search.emarefa.net/detail/BIM-32748
American Medical Association (AMA)
Shahin, Amr A. F.& Imam, Ali A.& Mutawalli, Ibrahim M.. Shrinkage and impact resistance of high strength concrete with polypropylene fibers. Housing and Building National Research Center Journal. 2008. Vol. 4, no. 2, pp.37-45.
https://search.emarefa.net/detail/BIM-32748
Data Type
Journal Articles
Language
English
Notes
18
Record ID
BIM-32748