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Title: CONCRETE PLASTIC SHRINKAGE-REDUCTION POTENTIAL OF SYNERGY FIBERS
Accession Number: 00822778
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: The contribution of synergy fibers to plastic shrinkage reduction of concrete was studied using cement-rich concrete, and the experimental results are reported. The fiber dosages were 0.5, 1.0, and 2.0 vol% of concrete. Three different batches of concrete were made, and 15 slabs were tested. The tests were conducted using slabs 51 mm (2.0 in.) thick, 1 m (3 ft) long, and 0.6 m (2 ft) wide. The crack development was enhanced by using fans that can produce a wind velocity of 22 km/h. The performance of these fibers was compared using the crack areas of control slabs with no fibers and fiber-reinforced slabs. The results indicate that synergy fibers, at the specified dosages, tremendously reduced the plastic shrinkage in concrete. The crack-area reduction varied from 100 to 92% of the plain concrete. There was absolutely no cracking when a fiber dosage of 2.0 vol% of concrete was used. There was 98% and 92% reduction of plastic shrinkage cracking when the fiber dosages were 1.0% and 0.5%, respectively, by volume of concrete.
Supplemental Notes: This paper appears in Transportation Research Record No. 1775, Concrete 2001.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Ramakrishnan, VPagination: p. 106-117
Publication Date: 2001
Serial: ISBN: 0309072395
Features: Figures
(7)
; Photos
(2)
; References
(4)
; Tables
(11)
TRT Terms: Uncontrolled Terms: Subject Areas: Highways; Materials; I32: Concrete
Files: TRIS, TRB, ATRI
Created Date: Jan 31 2002 12:00AM
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