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LTPP Customer Support Service Center
HRDI-30
6300 Georgetown Pike, Room F-209
McLean, Virginia 22101-2296
Email: ltppinfo@dot.gov
Phone: 202-493-3035
Fax: 202-493-...
OMB Control No. 2125-0590
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LTPPBind Online is a web-based tool to help highway agencies select the most suitable performance grade (PG) binder for a particular site based on the American...
Q: What is concrete?
A: Concrete is a composite material made from coarse aggregate (rocks), fine aggregate (sand), portland cement, and water. When mixed, the portland cement and water combine together in a chemical reaction to create the glue that holds together the...
by Benjamin A. Graybeal
This article is reprinted with permission from ACI MATERIALS JOURNAL
Title no. 104-M17
An experimental program was conducted to determine the uniaxial compressive behaviors of an ultra-high performance fiber-reinforced concrete (UHPFRC). Cylinders were...
The Federal Highway Administration (FHWA) Ultra-high Performance Concrete Research Program has been conducted through the FHWA Office of Infrastructure Research and Development at Turner-Fairbank Highway Research Center. Contact Ben Graybeal (benjamin....
Title no. 110-M17
INTRODUCTIONSustained postcracking tensile resistance is a fundamental mechanical characteristic of ultra-high-performance fiber-reinforced concrete (UHPFRC). This research program developed a simple, reliable direct tension test (DTT) method that can generate the...
Title no. 105-M68
Accurate determination of the compressive strength of very high strength concrete is currently a difficult proposition due to large testing machine capacity requirements and the need for cylinder end preparation. An experimental program was conducted to determine whether...
The Federal Highway Administration (FHWA) plays a key leadership role in sponsoring, sustaining, and guiding highway research. As a leader in the transportation research and technology (R&T) field, FHWA is working to improve its R&T program and to deploy innovations and technologies....
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