[PDF] Performance Of Concrete Bridge Deck Overlays eBook

Author : David W. Fowler
Publisher : Transportation Research Board
Page : 75 pages
File Size : 20,48 MB
Release : 2011
Category : Technology & Engineering
ISBN : 0309143543

GET BOOK

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 423: Long-Term Performance of Polymer Concrete for Bridge Decks addresses a number of topics related to thin polymer overlays (TPOs). Those topics include previous research, specifications, and procedures on TPOs; performance of TPOs based on field applications; the primary factors that influence TPO performance; current construction guidelines for TPOs related to surface preparation, mixing and placement, consolidation, finishing, and curing; repair procedures; factors that influence the performance of overlays, including life-cycle cost, benefits and costs, bridge deck condition, service life extension, and performance; and successes and failures of TPOs, including reasons for both.

Author : Chris Anderson
Publisher :
Page : 64 pages
File Size : 26,14 MB
Release : 1990
Category : Bridges
ISBN :

GET BOOK

Chloride-ions penetrating into bridge decks and corroding the steel have been a major problem. As the steel corrodes it exerts stresses on the surrounding concrete. When the stresses exceed the strength of the concrete, cracks or delaminations occur. This, of course, causes deterioration and spalling of bridge deck surfaces. Both the Latex and Iowa Method were used to repair bridge decks for this project. The concrete was removed down to the steel and replaced with approximately 1 1/2 inches of low slump or latex modified concrete. The removal of unsound concrete below the top layer of steel was sometimes necessary. The objective of this project was to determine if the bridge overlays would provide a cost effective method of rehabilitation. To do this, unsound and delaminated concrete was removed and replaced by an overlay of low slump or latex modified concrete.

Author : H. G. Russell
Publisher : Transportation Research Board
Page : 188 pages
File Size : 31,45 MB
Release : 2004
Category : Bridges
ISBN : 0309070112

GET BOOK

At head of title: National Cooperative Highway Research Program.

Author : K. Babaei
Publisher :
Page : 14 pages
File Size : 39,69 MB
Release : 1990
Category : Bridge deck
ISBN :

GET BOOK

This paper documents performance of twelve concrete bridge decks in Washington State that were rehabilitated and/or protected with latex-modified concrete and low-slump dense concrete overlays in order to prevent further deicing salt penetration and concrete deterioration caused by reinforcing steel corrosion. An evaluation is made of the factors that have affected the serviceability of those overlaid bridge decks, and recommendations are made based on that evaluation for the design and construction of concrete overlays in order to improve bridge deck performance and to extend bridge deck service life. The factors evaluated are overlay freeze-thaw scaling, surface wear and skid resistance, surface cracking, bond with the underlying deck, chloride and water intrusion, and finally the concrete overlay's ability to retard continued reinforcing steel corrosion and corresponding concrete deterioration.

Author : Delmo E. Koop
Publisher :
Page : 40 pages
File Size : 17,97 MB
Release : 1982
Category : Concrete
ISBN :

GET BOOK

Portland cement concrete overlay surfacings for bridge decks which will effectively resist de-icing salt solution penetration are a major concern. The report compares the relative effectiveness of latex modified concrete and high density concrete overlays.

Author : Gerald G. Miller
Publisher :
Page : 478 pages
File Size : 35,86 MB
Release : 2000
Category : Bridges
ISBN :

GET BOOK

The effects of construction practices and material properties on the performance of concrete bridge decks are evaluated. Emphasis is placed on comparing bridge decks with silica fume and conventional concrete overlays and determining if the silica fume overlays commonly used on bridges in Kansas are performing at a level that justifies the extra cost and construction precautions. Forty continuous steel girder bridges, 20 with silica fume overlays, 16 with conventional overlays and four with monolithic bridge decks are included in the study.