Development of Structural Carbon Nanotube-Based Sensing Composites for Rehabilitation of Deteriorating and Fatigue-Damaged Steel Bridges
Project Information
Project ID:
FHWA-PROJ-13-0046
Project Abstract:
Structural health monitoring has become a viable solution to continuously monitor critical infrastructure components that show distress or are unable to pass current load rating procedures. This research focuses on the development of a structural sensing composite layer for concrete structures that is capable of providing distributed monitoring capability. The layer consists of carbon nanotubes that are deposited on a carrier, which form a continuous conductive skin that is extremely sensitive to changes in strain and the formation and propagation of microdamage and macrodamage. It can be either loadbearing, i.e., the layer represents the reinforcement as well as the sensor, or nonloadbearing, i.e., the layer acts as a sensing skin alone. Distributed sensing allows for increased detectability of forming or growing defects that cannot necessarily be captured with conventional point-type sensors, such as strain gauges or accelerometers.
Goals:
Develop a structural sensing composite layer for concrete structures that is capable of providing distributed monitoring capability.
Research HUB ID:
8963
Project Status:
Completed
Project Funding Amount (Contract Award Amount):
$749,972.00
Start Date:
End Date:
Public Access Plan:
No
FHWA Program Area:
- Exploratory Advanced Research
- Infrastructure
Fiscal Year / AMRP Program / AMRP Activity:
- FY 2002-2022 / Infrastructure / Long-Term Infrastructure Performance
FHWA Activity:
- Long-Term Bridge Performance
AMRP = Annual Modal Research Plan
Contact Information
First Name:
Frank
Last Name:
Jalinoos
Phone Number:
(202) 493-3082
Email Address:
Team:
Long-Term Infrastructure Performance Team
Office:
Office of Infrastructure Research and Development
Office Code:
HRDI-30
Management Organizations
Sponsor Organization
Organization Role:
Sponsor Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Exploratory Advanced Research
Contact Role:
Sponsor
Deliverables
Links to Project Reports: