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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Self-Consolidating Concrete in Virginia Department of Transportation’s Bridge Structures
Author(s): Gail M. Moruza and H. Celik Ozyildirim
Publication: Materials Journal
Appears on pages(s): 57-64
Keywords: consolidation; lightweight self-consolidating concrete; permeability; placement; self-consolidating concrete (SCC); shrinkage; slump flow; strength
Abstract:The Virginia Department of Transportation (VDOT) incorporates innovative materials into its concrete structures to ensure durable and cost-effective infrastructure. However, poor consolidation can reduce the durability of VDOT concrete structures because it leads to unacceptable amounts of voids in hardened concrete that increase its permeability and reduces its strength. Self-consolidating concrete (SCC) that has high flow rates and the ability to move through congested reinforcement is a new addition to VDOT concretes; it facilitates placement, minimizes consolidation problems, and improves structure longevity. This paper summarizes VDOT’s use of SCC in bridge structures both in precast and castin-place applications. In precast applications, beams were fabricated with normalweight and lightweight SCC. In cast-in-place applications, drilled shafts, pier caps, and substructure repairs
were cast with normalweight SCC. Summaries of field applications by VDOT as well as lessons learned through implementation are included in the paper.
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