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Title	SHRINKAGE OF LATEX-MODIFIED AND MICROSILICA CONCRETE OVERLAYS
Accession No	00964827
Authors	Buchanan, P M; Mokarem, D W; Weyers, R E; Sprinkel, M M
Journal Title	Transportation Research Record No. 1834
Corp. Authors / Publisher	Transportation Research Board
Publication Date	20030000
Description	p. 33-39; Figures(7); References(6); Tables(5)
Languages	English
Abstract	Shrinkage performance was examined of Virginia Department of Transportation-approved latex-modified and microsilica concrete overlay mixtures. Research was conducted on both field-sampled and laboratory-fabricated restrained and unrestrained specimens. From crack and delamination surveys of sampled bridge decks and laboratory test results, a shrinkage performance-based specification for the Virginia Department of Transportation was developed. There was no significant difference between the unrestrained shrinkage values of latex-modified and microsilica concrete overlay mixtures for the specified time periods. Restrained microsilica concrete specimens generally cracked earlier and more frequently than restrained latex-modified concrete specimens. However, the bridge deck crack and delamination surveys show that conditions and quality of construction and type and frequency of traffic may have a greater effect on cracking than the overlay material.
Supplemental Information	This paper appears in Transportation Research Record No. 1834, Concrete 2003.
TRT Terms	Bridge decks ; Concrete overlays ; Construction ; Cracking ; Delamination ; Field studies ; Laboratory tests ; Latex modified concrete ; Performance based specifications ; Quality control ; Shrinkage ; Traffic
Other Terms	Microsilica concrete
Subject Areas	H32 CEMENT AND CONCRETE; H25 STRUCTURES DESIGN AND PERFORMANCE; I32 Concrete; I24 Design of Bridges and Retaining Walls
ISBN	0309085683
Availability	Transportation Research Board Business Office Order Document: http://trb.org/news/blurb_detail.asp?id=2157 Find a library where document is available Order Document: http://worldcat.org/isbn/0309085683
URLs	Document: http://dx.doi.org/10.3141/1834-05
TRIS Files	HRIS
Database	TRIS Online

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