Graph Chart

Uncertainties in condition, deterioration, maintenances actions, costs and time of applying actions to bridges at different ages of the bridge life. The charts depicts the subjectivity in modeling bridge conditions and maintenance practices applied to bridges. The horizontal axis represents the...

LTBP: Updates

Final Bridge Selected for the Long-Term Bridge Performance (LTBP) Program Pilot Study

The seventh and final bridge was selected for the LTBP pilot study, which was designed to validate the methods and protocols developed during the first phase of the program. The pilot study also was...

Long-Term Pavement Performance Data Analysis Program

Strategic Plan Objectives, Analysis Outcomes, and Supporting Projects

Long-Term Pavement Performance Contacts

LTPP Customer Support Service

Mail Address:
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-...

LTPP Customer Support Service Customer Satisfaction Questionnaire

OMB Control No. 2125-0590

Thank you for completing the Customer Satisfaction Questionnaire

Your comments are important to us, and we will use them to make the customer experience more enjoyable in the future.

LTPPBind

LTPPBind is available on LTPP InfoPave™ at https://infopave.fhwa.dot.gov

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&A: Ultra-High Performance Concrete

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...

Compressive Behavior of Ultra-High-Performance Fiber-Reinforced Concrete

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...

Contact

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....

Development of Direct Tension Test Method for Ultra-High-Performance Fiber-Reinforced Concrete

Title no. 110-M17

Sustained 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...