Mix design, construction, and performance of a thin HMA overlay on Pumphrey Drive, Fort Worth, TX /
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| Corporate Authors: | , |
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| Format: | eBook |
| Language: | English |
| Published: |
College Station, Tex. :
Texas Transportation Institute,
[2008]
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| Series: | Research report (Austin, Tex.) ;
5-5123-01-2. |
| Subjects: | |
| Online Access: | Connect to the full text of this online report (Texas Transportation Institute) Connect to the full text of this online report (UC-Berkeley) |
| Abstract: | A thin (1 inch--1.5 inch) hot-mix asphalt (HMA) overlay was constructed on Pumphrey Drive in Tarrant County, Fort Worth from July 30, 2007, to August 3, 2007. This report documents the mix design, construction, and field performance of this overlay project. Two Type F mixes were designed for this project following the new proposed balanced mix design procedure. These two mixes had the same original PG64-22 binder, aggregates, and gradation but different binder modifiers. One mix was modified with 7 percent crumb rubber and the other modified with 3 percent SBR latex. After construction, three visual site inspections on this thin overlay project were conducted on December 14, 2007, April 2, 2008, and July 30, 2008. The overall performance of this thin HMA overlay project is very good and has been considered successful by TxDOT and Tarrant County. Almost no rutting was observed on the main traffic lanes, except at a stop condition intersection on the south end of the project. Only a few transverse reflective cracks occurred on the ramps and a few longitudinal cracks occurred on the main traffic lanes. |
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| Item Description: | Title from PDF title screen. "Performed in cooperation with Texas Department of Transportation and the Federal Highway Administration." "August 2008 ; Published December 2008." "Report number FHWA/TX-09/5-5123-01-2"--Technical report documentation p. Electronic resource. |
| Physical Description: | ix, 24 pages : digital, PDF file with color illustrations |
| Format: | System requirements: Adobe Acrobat Reader. Mode of access: World Wide Web. |