Durability Evaluation of In-Service FRP Composites in Highway Structures

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General Information
Solicitation Number: 1480
Status: Solicitation withdrawn
Date Posted: Aug 28, 2018
Last Updated: Oct 08, 2019
Solicitation Expires:
Partners: FL, GADOT, LA
Lead Organization: Louisiana Department of Transportation and Development
Financial Summary
Commitment Start Year: 2019
Commitment End Year: 2021
100% SP&R Approval: Approved
Commitments Required: $420,000.00
Commitments Received: $180,000.00
Contact Information
Lead Study Contact(s): Tyson Rupnow
tyson.rupnow@la.gov
FHWA Technical Liaison(s): Zachary Haber
zachary.haber@dot.gov
Phone: 202-493-3469
Organization Year Commitments Technical Contact Name Funding Contact Name Contact Number Email Address
Florida Department of Transportation 2019 $20,000.00 Steven Nolan Jennifer Clark 850-414-4614 jennifer.clark@dot.state.fl.us
Florida Department of Transportation 2020 $20,000.00 Steven Nolan Jennifer Clark 850-414-4614 jennifer.clark@dot.state.fl.us
Florida Department of Transportation 2021 $20,000.00 Steven Nolan Jennifer Clark 850-414-4614 jennifer.clark@dot.state.fl.us
Georgia Department of Transportation 2019 $20,000.00 Rabindra Koirala Supriya Kamatkar 404-347-0552 skamatkar@dot.ga.gov
Georgia Department of Transportation 2020 $20,000.00 Rabindra Koirala Supriya Kamatkar 404-347-0552 skamatkar@dot.ga.gov
Georgia Department of Transportation 2021 $20,000.00 Rabindra Koirala Supriya Kamatkar 404-347-0552 skamatkar@dot.ga.gov
Louisiana Department of Transportation and Development 2019 $20,000.00 Tyson Rupnow Tyson Rupnow tyson.rupnow@la.gov
Louisiana Department of Transportation and Development 2020 $20,000.00 Tyson Rupnow Tyson Rupnow tyson.rupnow@la.gov
Louisiana Department of Transportation and Development 2021 $20,000.00 Tyson Rupnow Tyson Rupnow tyson.rupnow@la.gov

Background

For over 25 years, fiber reinforced polymer (FRP) composites have been in-service as wraps for columns and beams, rebars in concrete and also as bridge decks for highway and other structural applications. For example, a large number of pedestrian and vehicular bridges have been built across the country using FRP composite materials as rebars, decks and even as superstructures. In addition, many concrete and timber bridges have been rehabilitated using FRP composite wraps, in addition to occasional repair of steel bridges. Although few in-service FRP structures presented problems, most have been performing well. The proposed effort is to determine the in-service performance status of existing FRP structures and assess their durability under a wide range of service and environmental conditions including moisture ingress, pH variations, sustained stresses, fracture and thermal fatigue, by conducting nondestructive evaluation and load tests, and harvesting coupons from field samples where possible.

Objectives

Determine the conditions of existing in-service FRP highway structures through nondestructive testing and in-situ load testing. Evaluate durability of FRP structures and wraps by collecting and testing coupon size samples from the in-service structural components to arrive at design related strength reduction factors under natural aging.

Scope of Work

The proposed work will include the following tasks:

1. Nondestructively assess conditions of several existing in-service FRP highway structures including joints using infrared thermography, ground penetrating radar, digital tap meter, pachometer, resistivity and corrosion potential measurement device in addition to in-situ load testing with focus on failure types (if any) in terms debond, delamination, stress concentration, fracture and fatigue, excess deflection, vibration, and others.

2. Collect coupon size field samples at both critical and non-critical locations from in-service FRP structures.

3. Test field samples of Task 2 under tension, bending, shear, DMTA, DSC, and SEM for material properties and void content as per applicable ASTM standards to determine material property reductions.

4. Compare the data obtained from Task 3 with the available data from state DOTs at the time of installation accounting for environmental conditions, traffic patterns (ADT, ADTT), material compositions (resin type, fiber volume fraction etc.) and manufacturing methods.

5. Generate additional lab-accelerated aging data (if control samples are available) in a limited manner and correlate the results with available lab and field data from in-service FRP composite bridge structures to better understand degradation mechanisms before developing predictive models.

6. Discuss degradation mechanisms of FRP composites for material improvements for highway structural applications in terms of resin enbrittlement, resin oxidation (UV), resin hydrolysis, delamination/debond at fiber/matrix interface, fiber breakage etc.

7. Determine material strength reduction factors from the data and evaluations of Tasks 3, 4, 5, and 6 for design of FRP structures, where possible (i.e. enough data are available).

8. Conduct a workshop to disseminate the research findings among interested parties, which includes design examples, design details, construction details, and field demonstrations.

Comments

Participation level is requested to be $20,000 per year. SP&R Approval Waivers are being submitted for approval.

Subjects: Bridges, Other Structures, and Hydraulics and Hydrology Maintenance Materials and Construction

Documents Attached
Title File/Link Type Privacy Download
Waiver Approval Letter Approval of SP&R Waiver Pooled Fund Solicitation #1480.pdf Memorandum Public

Durability Evaluation of In-Service FRP Composites in Highway Structures

General Information
Solicitation Number: 1480
Status: Solicitation withdrawn
Date Posted: Aug 28, 2018
Last Updated: Oct 08, 2019
Solicitation Expires:
Partners: FL, GADOT, LA
Lead Organization: Louisiana Department of Transportation and Development
Financial Summary
Commitment Start Year: 2019
Commitment End Year: 2021
100% SP&R Approval: Approved
Commitments Required: $420,000.00
Commitments Received: $180,000.00
Contact Information
Lead Study Contact(s): Tyson Rupnow
tyson.rupnow@la.gov
FHWA Technical Liaison(s): Zachary Haber
zachary.haber@dot.gov
Phone: 202-493-3469
Commitments by Organizations
Agency Year Commitments Technical Contact Name Funding Contact Name Contact Number Email Address
Florida Department of Transportation 2019 $20,000.00 Steven Nolan Jennifer Clark 850-414-4614 jennifer.clark@dot.state.fl.us
Florida Department of Transportation 2020 $20,000.00 Steven Nolan Jennifer Clark 850-414-4614 jennifer.clark@dot.state.fl.us
Florida Department of Transportation 2021 $20,000.00 Steven Nolan Jennifer Clark 850-414-4614 jennifer.clark@dot.state.fl.us
Georgia Department of Transportation 2019 $20,000.00 Rabindra Koirala Supriya Kamatkar 404-347-0552 skamatkar@dot.ga.gov
Georgia Department of Transportation 2020 $20,000.00 Rabindra Koirala Supriya Kamatkar 404-347-0552 skamatkar@dot.ga.gov
Georgia Department of Transportation 2021 $20,000.00 Rabindra Koirala Supriya Kamatkar 404-347-0552 skamatkar@dot.ga.gov
Louisiana Department of Transportation and Development 2019 $20,000.00 Tyson Rupnow Tyson Rupnow tyson.rupnow@la.gov
Louisiana Department of Transportation and Development 2020 $20,000.00 Tyson Rupnow Tyson Rupnow tyson.rupnow@la.gov
Louisiana Department of Transportation and Development 2021 $20,000.00 Tyson Rupnow Tyson Rupnow tyson.rupnow@la.gov

Background

For over 25 years, fiber reinforced polymer (FRP) composites have been in-service as wraps for columns and beams, rebars in concrete and also as bridge decks for highway and other structural applications. For example, a large number of pedestrian and vehicular bridges have been built across the country using FRP composite materials as rebars, decks and even as superstructures. In addition, many concrete and timber bridges have been rehabilitated using FRP composite wraps, in addition to occasional repair of steel bridges. Although few in-service FRP structures presented problems, most have been performing well. The proposed effort is to determine the in-service performance status of existing FRP structures and assess their durability under a wide range of service and environmental conditions including moisture ingress, pH variations, sustained stresses, fracture and thermal fatigue, by conducting nondestructive evaluation and load tests, and harvesting coupons from field samples where possible.

Objectives

Determine the conditions of existing in-service FRP highway structures through nondestructive testing and in-situ load testing. Evaluate durability of FRP structures and wraps by collecting and testing coupon size samples from the in-service structural components to arrive at design related strength reduction factors under natural aging.

Scope of Work

The proposed work will include the following tasks:

1. Nondestructively assess conditions of several existing in-service FRP highway structures including joints using infrared thermography, ground penetrating radar, digital tap meter, pachometer, resistivity and corrosion potential measurement device in addition to in-situ load testing with focus on failure types (if any) in terms debond, delamination, stress concentration, fracture and fatigue, excess deflection, vibration, and others.

2. Collect coupon size field samples at both critical and non-critical locations from in-service FRP structures.

3. Test field samples of Task 2 under tension, bending, shear, DMTA, DSC, and SEM for material properties and void content as per applicable ASTM standards to determine material property reductions.

4. Compare the data obtained from Task 3 with the available data from state DOTs at the time of installation accounting for environmental conditions, traffic patterns (ADT, ADTT), material compositions (resin type, fiber volume fraction etc.) and manufacturing methods.

5. Generate additional lab-accelerated aging data (if control samples are available) in a limited manner and correlate the results with available lab and field data from in-service FRP composite bridge structures to better understand degradation mechanisms before developing predictive models.

6. Discuss degradation mechanisms of FRP composites for material improvements for highway structural applications in terms of resin enbrittlement, resin oxidation (UV), resin hydrolysis, delamination/debond at fiber/matrix interface, fiber breakage etc.

7. Determine material strength reduction factors from the data and evaluations of Tasks 3, 4, 5, and 6 for design of FRP structures, where possible (i.e. enough data are available).

8. Conduct a workshop to disseminate the research findings among interested parties, which includes design examples, design details, construction details, and field demonstrations.

Comments

Participation level is requested to be $20,000 per year. SP&R Approval Waivers are being submitted for approval.

Subjects: Bridges, Other Structures, and Hydraulics and Hydrology Maintenance Materials and Construction

Title Type Private
Waiver Approval Letter Memorandum N

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