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Exploring the Feasibility of Replacing Latex with Asphalt Emulsion for Use in Bridge Deck Overlays
The study explored the feasibility of using asphalt emulsion as a low-cost replacement for latex in portland cement concrete for highway applications. Concrete and mortar specimens were prepared with asphalt emulsion additions, and tested for physical and mechanical properties. Results showed that addition of emulsion reduced the workability, and compressive and flexural strengths of concrete as compared to conventional concrete. The addition of emulsion also increased the amount of entrained air in concrete which partly accounted for the strength reduction. The asphalt modified concrete, however, showed excellent freeze-thaw durability. Moist curing appeared to have a beneficial effect on strength development as compared to air curing. Use of pozzolanic materials (fly ash or silica fume) in combination with asphalt emulsion significantly reduced the chloride permeability of mortars.
Exploring the Feasibility of Replacing Latex with Asphalt Emulsion for Use in Bridge Deck Overlays
The study explored the feasibility of using asphalt emulsion as a low-cost replacement for latex in portland cement concrete for highway applications. Concrete and mortar specimens were prepared with asphalt emulsion additions, and tested for physical and mechanical properties. Results showed that addition of emulsion reduced the workability, and compressive and flexural strengths of concrete as compared to conventional concrete. The addition of emulsion also increased the amount of entrained air in concrete which partly accounted for the strength reduction. The asphalt modified concrete, however, showed excellent freeze-thaw durability. Moist curing appeared to have a beneficial effect on strength development as compared to air curing. Use of pozzolanic materials (fly ash or silica fume) in combination with asphalt emulsion significantly reduced the chloride permeability of mortars.
Exploring the Feasibility of Replacing Latex with Asphalt Emulsion for Use in Bridge Deck Overlays
J. Olek (author) / C. Y. D. Yang (author) / M. D. Cohen (author) / S. Diamond (author)
1995
62 pages
Report
No indication
English