The NTIS website and supporting ordering systems are undergoing a major upgrade from 8PM on September 25th through approximately October 6. During that time, much of the functionality, including subscription and product ordering, shipping, etc., will not be available. You may call NTIS at 1-800-553-6847 or (703) 605-6000 to place an order but you should expect delayed shipment. Please do NOT include credit card numbers in any email you might send NTIS.
Documents in the NTIS Technical Reports collection are the results of federally funded research. They are directly submitted to or collected by NTIS from Federal agencies for permanent accessibility to industry, academia and the public.  Before purchasing from NTIS, you may want to check for free access from (1) the issuing organization's website; (2) the U.S. Government Printing Office's Federal Digital System website; (3) the federal government Internet portal; or (4) a web search conducted using a commercial search engine such as
Accession Number PB2013-103267
Title Evaluation of Long-Life Concrete Pavement Practices for Use in Florida.
Publication Date Nov 2012
Media Count 241p
Personal Author D. Verdugo M. Tia O. Kwon
Abstract A research study was conducted to develop long-life concrete pavement designs with expected service life of over 50 years suitable for use in Florida. Two typical concrete pavement designs used in Florida were evaluated using the MEPDG program to see if they could be used for long-life concrete pavements in Florida. The MEPDG program used was calibrated for the Florida conditions. It was found that these two designs could be used as long-life pavements if the slab thickness was adequate and the concrete properties were right low elastic modulus, low coefficient of thermal expansion and adequate flexural strength. The concrete with the right properties could be produced if it was made with the right aggregate. Among the three aggregates considered, Brooksville limestone was found to produce the best concrete for this application. DRIP 2.0 software was used to evaluate the drainage conditions for the two pavement designs, which were designated as Type I and Type II designs in this study. The effects of pavement cross slope, number of lanes, base permeability, infiltration rate and effective porosity were studied. Drainage analyses showed that increasing the slope and permeability of the designs would allow the drainage system to work better, as well as, reduce the time-to-drain required. The required combinations of these parameters for satisfactory drainage performance were determined.
Keywords Concrete pavement
Concrete slab thickness
Critical stress analysis
Elastic modulus
Jointed Plain Concrete Pavements(JPCP)
Life cycle cost analysis
Long-Term Pavement Performance(LTPP)
Mechanistic-Empirical Pavement Design Guide(MEPDG)
Pavement designs
Stress-to-strength ratio

Source Agency Federal Highway Administration
Department of Transportation Office of University Research
NTIS Subject Category 89C - Construction Management & Techniques
89G - Construction Materials, Components, & Equipment
50C - Construction Equipment, Materials, & Supplies
Corporate Author Florida Univ., Gainesville. Dept. of Civil and Coastal Engineering.
Document Type Technical report
Title Note Final rept.
NTIS Issue Number 1308
Contract Number BDK75-977-48

Science and Technology Highlights

See a sampling of the latest scientific, technical and engineering information from NTIS in the NTIS Technical Reports Newsletter

Acrobat Reader Mobile    Acrobat Reader