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.
Shrinkage of Latex-Modified and Microsilica Concrete Overlays
Transportation Research Record
Transportation Research Record: Journal of the Transportation Research Board ; 1834 , 1 ; 33-39
2003-01-01
Article (Journal)
Electronic Resource
English
Shrinkage of Latex-Modified and Microsilica Concrete Overlays
Online Contents | 2003
|Shrinkage of High-Performance Concrete Overlays on Route 60 in Virginia
Online Contents | 1998
|Shrinkage of High-Performance Concrete Overlays on Route 60 in Virginia
Transportation Research Record | 1998
|Thin Concrete Overlays: New application guidelines for concrete overlays
British Library Online Contents | 2008
Undispersed agglomerates and the strength of microsilica concrete
Online Contents | 2012
|