Technical Report Documentation Page 1. Report No. FHWA/TX-13/5-6037-01-1 2. Government Accession No. 3. Recipient's Catalog No. 4. Title and Subtitle IMPLEMENTATION OF CURING, TEXTURING, SUBBASE, AND COMPACTION MEASUREMENT ALTERNATIVES FOR CONTINUOUSLY REINFORCED CONCRETE PAVEMENT 5. Report Date February 2013 6. Performing Organization Code 7. Author(s) Dan Zollinger, Moon, Won, Tyler Ley, Kyle Riding, Andrew Wimsatt, Wujun Zhou, Seongwoo Ryu, , and Pangil Choi 8. Performing Organization Report No. Report 5-6037-01-1 9. Performing Organization Name and Address Texas A&M Transportation Institute College Station, Texas 77843-3135 10. Work Unit No. (TRAIS) 11. Contract or Grant No. Project 5-6037-01 12. Sponsoring Agency Name and Address Texas Department of Transportation Research and Technology Implementation Office 125 E. 11 th Street Austin, Texas 78701-2483 13. Type of Report and Period Covered Technical Report: June 2010–August 2012 14. Sponsoring Agency Code 15. Supplementary Notes Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration. Project Title: Implementation of Alternatives to Asphalt Concrete Subbases for Concrete Pavement URL: http://tti.tamu.edu/documents/5-6037-01-1.pdf 16. Abstract This report evaluates four different subbase types, two different concrete mix designs (a standard Texas Department of Transportation gradation and an optimized gradation), three different curing compounds, and four different surface textures that researchers tested on a new section of continuously reinforced concrete pavement. In particular, researchers found: • The instrumented roller package was effective in locating areas of low stiffness in subgrade soils. • falling weight deflectometer and dynamic cone penetrometer data can be used to evaluate the stiffness of stabilized subbases before concrete paving commences. • The proposed curing compound evaluation protocol not only considered the moisture loss throughout the maturing process of concrete, but also introduced the relative humidity, surface abrasion strength, and water content of cured concrete samples to assess the curing compound effectiveness. • It appears that the use of geotextile between Continuously Reinforced Concrete Pavement (CRCP) and the subbase is questionable and may not provide the desired pavement performance. • The ConcreteWorks program was effectively calibrated using the data collected from this project. 17. Key Words Concrete, Pavement, CRCP, Curing, Subbase, Aggregate, k-value, Roller, Coarseness, FWD, HWTD, Mix Design 18. Distribution Statement No restrictions. This document is available to the public through NTIS: National Technical Information Service Alexandria, Virginia http://www.ntis.gov 19. Security Classif. (of this report) Unclassified 20. Security Classif. (of this page) Unclassified 21. No. of Pages 136 22. Price Form DOT F 1700.7 (8-72) Reproduction of completed page authorized
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