Global ETD Search
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Showing 1 to 9 of 9 for “"latex-modified concrete"”.
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Shrinkage of Latex-Modified and Microsilica Concrete Overlay Mixtures
… steel in the sound chloride-contaminated concrete that is left in-place. Bridge deck overlays in Virginia are usually either latex-modified concrete or microsilica concrete, and both types of overlay are considered equivalent in terms of performance. However, the latex-modified concrete …
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Evaluation of concrete bridge deck overlays
… bond strengths between them and substrate concrete. All the materials used are of interests to WVDOH. Both fresh and hardened concrete properties of seven different overlay types were characterized. Four of the seven were selected for the study of interface bond strength, which included …
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Service life determination of concrete bridge decks and bridge deck overlay systems
… in the United States, specifically reinforced concrete bridges, is deteriorating at a rapid rate. It is known that chloride-induced corrosion of the reinforcing steel is one of the major causes of the deterioration of concrete bridge decks. Numerous bridge deck protection and overlay systems …
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Evaluations of concrete overlays for bridge deck applications
Protective concrete deck overlays have been successfully used by WVDOH in a number of old and new concrete bridge decks to extend their service life, but in several cases delamination and failures have been observed. A comprehensive study has been recently defined to investigate overlays …
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DESIGN AND PERFORMANCE OF SELF-CONSOLIDATING AND THIXOTROPIC ULTRA-HIGH-PERFORMANCE CONCRETE FOR INFRASTRUCTURE CONSTRUCTION AND REHABILITATION
… to develop two classes of ultra-high-performance concrete (UHPC), one with self-consolidating consistency and the other with improved thixotropy. Tailoring the rheological properties of low yield stress UHPC can improve dispersion and orientation of steel fibers used in the design of UHPC, hence …
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Environmental Influence on the Bond Between a Polymer Concrete Overlay and an Aluminum Substrate
… ion induced corrosion of reinforcing steel in concrete bridge decks has become a major problem in the United States. Latex modified concrete (LMC), low slump dense concrete (LSDC) and hot-mix asphalt membranes (HMAM) overlays are currently some of the most used rehabilitation methods. Epoxy …
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Corrosion Testing and Modeling of Chloride-Induced Corrosion Deterioration of Concrete Bridge Decks
… The New Jersey bridge deck was overlaid with latex modified concrete. The New York bridge deck, which was built in 1990, is six inch concrete topping over prestressed adjacent box beams structure with epoxy-coated bar in the negative moment area. The Minnesota bridge was rebuilt in 1984. The …
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Rehabilitation of Longitudinal Joints in Double-Tee Girder Bridges
… durability issues. Ultra-high performance concrete (UHPC) and latex modified concrete (LMC) were selected as the filler materials because of their improved strength and durability. Thirteen large-scale beam tests were carried out to investigate the performance of the selected joint …
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Improving the Sustainability of Performance-Based Concrete Overlay Mix Design made with Rounded Aggregate
… accelerate damage. Conventional prescriptive concrete overlay designs are often inflexible, limiting the use of new materials and failing to address region-specific performance needs. This research aims to develop performance-based concrete overlay mix designs using locally available rounded …