1. Report No. 2. Government Accession No. FHWA/TX-79/36+114-7 4. Titl" ond Subtitl. AN INVESTIGATION OF THE USE OF POLYMER-CONCRETE OVERLAYS FOR BRIDGE DECKS 7 Author!.) Huey-Tsann HSu, David W. Fowler, Mickey Miller, and Donald R. Paul 9. Performing Organization Name and Addres. Center for Highway Research The University of Texas at Austin Austin, Texas 78712 12. Sponsoring Agency Name and Addr .... Texas State Department of Highways and Public Transportation; Transportation Planning Division P. O. Box 5051 Austin, Texas 78763 15. Supplementary Not ... TECHNICAL REPORT STANDARD TITLE PAGE 3. Recipient's Catalog No. 5. Report Date March 1979 6. Performing Organi zation Code B. Performing Organization R"port No. Research Report 114-7 10. Work Unit No. II. Contract or Grant No. Research Study 3-9-71-114 13. Type of Report and P .. riod Cov .. red Interim 14. Sponsoring Agency Code Study conducted in cooperation with the U. S. Department of Transportation, Federal Highway Administration Research Study Title: "Polymer-Impregnated Concrete for Highway Applications" 16. Abstract An investigation was made to determine the feasibility of using a po1ymer- concrete (PC) overlay to improve the durability of a bridge by sealing the concrete against water penetration. The overlay consisted of a thin (approximately 0.5-in.) layer of polymer and aggregate. Fine aggregate was placed to a depth of 1/4 in., and 3/8-in.-maximum-size aggregate was placed and rolled into the sand. Two mono- mer applications were made. Durability tests, which included freeze-thaw cycling, water tightness, sandblast abrasion, and skid resistance testing, were performed on both treated and untreated slabs. The 24-hour water tightness test showed that the PC overlay could completely seal the concrete against water penetration, while the control specimens had about 2 in. to 2.5 in. (51 rom to 64 rom) of water penetration. The PC overlay proved to be more resistant than the control when subjected to the sandblast abrasion, especially after freeze-thaw cycling. Because the surfaces were sealed against water penetration, the PC overlay specimens showed a greater freeze-thaw durability than the controls, by a factor of at least two. Also, the PC overlay showed a better skid resistance than the control. A field application of PC overlay was performed successfully on a bridge deck, which demonstrated the feasibility and practicality of using PC overlay. 17. K.. y Word. polymer concrete, overlays, bridge decks, waterproofing, skid resistance 18. Di.tribution Statem .. nt No restrictions. This document is available to the public through the National Technical Information Service, Springfield, Virginia 22161. 19. Security Clani/. (of this report) 20. Security Clani/. (of thi s page) 21. No. of Page. 22. Pri c .. Unc las s ified Unc lass ified 146 Form DOT F 1700.7 le-69)
AN INVESTIGATION OF THE USE OF POLYMER-CONCRETE OVERLAYS FOR BRIDGE DECKS
Apr 29, 2023
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Related Documents
