Shrinkage of Latex-Modified and Microsilica Concrete Overlays

Autor:	Michael M Sprinkel, Patricia M. Buchanan, David W Mokarem, Richard E. Weyers
Rok vydání:	2003
Předmět:	Engineering Silica fume business.industry Mechanical Engineering Delamination Significant difference Overlay Structural engineering Bridge deck Cracking Laboratory test Geotechnical engineering business Civil and Structural Engineering Shrinkage
Zdroj:	Transportation Research Record: Journal of the Transportation Research Board. 1834:33-39
ISSN:	2169-4052 0361-1981
DOI:	10.3141/1834-05
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8045548ce8794a7145e8e7616dcea2ed https://doi.org/10.3141/1834-05 Zobrazit plný text záznamu