New Performance Approach to Evaluate ASR in Concrete

Print
General Information
Study Number: TPF-5(521)
Former Study Number:
Lead Organization: Federal Highway Administration
Solicitation Number: 1585
Partners: CA, CO, CT, DE, GADOT, ID, KS, SD, TX
Status: Cleared by FHWA
Est. Completion Date:
Contract/Other Number:
Last Updated: Aug 03, 2023
Contract End Date:
Financial Summary
Contract Amount:
Suggested Contribution:
Total Commitments Received: $305,000.00
100% SP&R Approval: Approved
Contact Information
Lead Study Contact(s): Terry Arnold
Terry.Arnold@dot.gov
Phone: 202-493-3305
FHWA Technical Liaison(s): Terry Arnold
Terry.Arnold@dot.gov
Phone: 202-493-3305
Study Champion(s): Jose Munoz
jose.munoz.ctr@dot.gov
Phone: 202- 493-3159
Organization Year Commitments Technical Contact Name Funding Contact Name
California Department of Transportation 2024 $25,000.00 Zihui Li Sang Le
California Department of Transportation 2025 $0.00 Zihui Li Sang Le
California Department of Transportation 2026 $0.00 Zihui Li Sang Le
California Department of Transportation 2027 $0.00 Zihui Li Sang Le
California Department of Transportation 2028 $0.00 Zihui Li Sang Le
Colorado Department of Transportation 2024 $5,000.00 Eric Prieve Thien Tran
Colorado Department of Transportation 2025 $5,000.00 Eric Prieve Thien Tran
Colorado Department of Transportation 2026 $5,000.00 Eric Prieve Thien Tran
Colorado Department of Transportation 2027 $5,000.00 Eric Prieve Thien Tran
Colorado Department of Transportation 2028 $5,000.00 Eric Prieve Thien Tran
Connecticut Department of Transportation 2023 $5,000.00 Charles Gardon Melanie Zimyeski
Connecticut Department of Transportation 2024 $5,000.00 Charles Gardon Melanie Zimyeski
Connecticut Department of Transportation 2025 $5,000.00 Charles Gardon Melanie Zimyeski
Connecticut Department of Transportation 2026 $5,000.00 Charles Gardon Melanie Zimyeski
Connecticut Department of Transportation 2027 $5,000.00 Charles Gardon Melanie Zimyeski
Delaware Department of Transportation 2023 $25,000.00 Michael DuRoss Nicole Johnson
Delaware Department of Transportation 2024 $25,000.00 Michael DuRoss Nicole Johnson
Georgia Department of Transportation 2023 $5,000.00 Peter Wu Brennan Roney
Georgia Department of Transportation 2024 $5,000.00 Peter Wu Brennan Roney
Georgia Department of Transportation 2025 $5,000.00 Peter Wu Brennan Roney
Georgia Department of Transportation 2026 $5,000.00 Peter Wu Brennan Roney
Georgia Department of Transportation 2027 $5,000.00 Peter Wu Brennan Roney
Idaho Department of Transportation 2023 $25,000.00 Dana Dietz Ned Parrish
Kansas Department of Transportation 2023 $20,000.00 Dan Wadley David Behzadpour
Kansas Department of Transportation 2024 $20,000.00 Dan Wadley David Behzadpour
Kansas Department of Transportation 2025 $20,000.00 Dan Wadley David Behzadpour
Kansas Department of Transportation 2026 $20,000.00 Dan Wadley David Behzadpour
South Dakota Department of Transportation 2023 $5,000.00 Darin Hodges Thad Bauer
South Dakota Department of Transportation 2024 $5,000.00 Darin Hodges Thad Bauer
South Dakota Department of Transportation 2025 $5,000.00 Darin Hodges Thad Bauer
South Dakota Department of Transportation 2026 $5,000.00 Darin Hodges Thad Bauer
South Dakota Department of Transportation 2027 $5,000.00 Darin Hodges Thad Bauer
Texas Department of Transportation 2023 $5,000.00 Andy Naranjo Ned Mattila
Texas Department of Transportation 2024 $5,000.00 Andy Naranjo Ned Mattila
Texas Department of Transportation 2025 $5,000.00 Andy Naranjo Ned Mattila
Texas Department of Transportation 2026 $5,000.00 Andy Naranjo Ned Mattila
Texas Department of Transportation 2027 $5,000.00 Andy Naranjo Ned Mattila

Objectives

Study objectives

To evaluate a wide selection of concrete mix designs to validate the use of the new AASHTO TP-144-21 (T-FAST) and alkali threshold test (ATT) methods in conjunction with mix design data, cement mill reports and SCM properties to determine the likelihood of ASR gel formation in concrete.

Background

The formation of ASR gels in concrete has been a major issue for the industry since they were first discovered in the 1930s. The gels are formed by the reaction of the alkalis from the cement with the silica in certain ASR susceptible aggregates. The gels can absorb water, swell, and cause the concrete to crack.

The first tests to determine the ASR susceptibility of aggregates came out in 1947. There have been many tests since then. They mostly rely on the measurement of engineering properties. Typically, a sample of mortar or aggregate is immersed in sodium hydroxide solution at elevated temperature and the physical expansion of the sample measured after a period. The T-FAST method is a more sensitive and accurate test which predicts ASR expansion using purely chemical measurements. The test is completed in 21 days.

Although these tests can detect ASR reactive sites in aggregates, they cannot determine whether gels will form in the resulting concrete. That depends on the alkali loading of the mix. The idea of measuring the alkali threshold of aggregates has been discussed for many years although no simple or reliable test has been available. A new test, (ATT) has been developed in the chemistry laboratory at the Turner Fairbank Highway Research Center (TFHRC). The test is simple and is completed in 21 days. With the ATT method it is possible to determine the likelihood of ASR formation in concrete.

While research at TFHRC supports this notion there is a need to verify the validity of this technique by evaluating many commonly used aggregates.

Scope of Work

Partners in this pooled fund study will select concrete mix designs with known ASR field performance either positive or negative.  They will supply samples of concrete mixtures components including aggregates, cements, and SCMs along with the corresponding mix designs to TFHRC where the chemistry laboratory will use the T-FAST and ATT methods to evaluate their ASR reactivity and the alkali threshold of the aggregate combination. This information will be compared against the alkali loading of the provided mixes to ensure that the T-FAST/ATT combination would have predicted field performance. Further, these results will be used to design an ASR mitigation test like T-FAST.

Comments

Funding: Partner agencies who are interested in the topic are requested to contribute a minimum of $5,000 a year for the five years of the TPF study. The scope of the project is scalable based on the level of funding received. FHWA is already contributing significant resources to the topic area and will likely dedicate further resources in the future. 

Documents Attached
Title File/Link Type Privacy Download
TPF-5 (521) Acceptance Letter TPF5(521) New Performance Approach to Evaluate ASR in Concrete Acceptance Letter (002).pdf Other Public
Acceptance Letter C:\Users\Terry.Arnold\Documents\My Documents 2023\ASR Pooled Fund TPF5(521) New Performance Approach to Evaluate ASR in Concrete.pdf Memorandum Public
Documents Attached
Title File/Link Type Privacy Download
SPR Waiver Approval Memo SPR Waiver Memo Solicitation 1585_.pdf Memorandum Public

New Performance Approach to Evaluate ASR in Concrete

General Information
Study Number: TPF-5(521)
Lead Organization: Federal Highway Administration
Solicitation Number: 1585
Partners: CA, CO, CT, DE, GADOT, ID, KS, SD, TX
Status: Cleared by FHWA
Est. Completion Date:
Contract/Other Number:
Last Updated: Aug 03, 2023
Contract End Date:
Financial Summary
Contract Amount:
Total Commitments Received: $305,000.00
100% SP&R Approval:
Contact Information
Lead Study Contact(s): Terry Arnold
Terry.Arnold@dot.gov
Phone: 202-493-3305
FHWA Technical Liaison(s): Terry Arnold
Terry.Arnold@dot.gov
Phone: 202-493-3305
Commitments by Organizations
Organization Year Commitments Technical Contact Name Funding Contact Name Contact Number Email Address
California Department of Transportation 2024 $25,000.00 Zihui Li Sang Le (916)701-3998 sang.le@dot.ca.gov
California Department of Transportation 2025 $0.00 Zihui Li Sang Le (916)701-3998 sang.le@dot.ca.gov
California Department of Transportation 2026 $0.00 Zihui Li Sang Le (916)701-3998 sang.le@dot.ca.gov
California Department of Transportation 2027 $0.00 Zihui Li Sang Le (916)701-3998 sang.le@dot.ca.gov
California Department of Transportation 2028 $0.00 Zihui Li Sang Le (916)701-3998 sang.le@dot.ca.gov
Colorado Department of Transportation 2024 $5,000.00 Eric Prieve Thien Tran (303) 757-9522 thien.tran@state.co.us
Colorado Department of Transportation 2025 $5,000.00 Eric Prieve Thien Tran (303) 757-9522 thien.tran@state.co.us
Colorado Department of Transportation 2026 $5,000.00 Eric Prieve Thien Tran (303) 757-9522 thien.tran@state.co.us
Colorado Department of Transportation 2027 $5,000.00 Eric Prieve Thien Tran (303) 757-9522 thien.tran@state.co.us
Colorado Department of Transportation 2028 $5,000.00 Eric Prieve Thien Tran (303) 757-9522 thien.tran@state.co.us
Connecticut Department of Transportation 2023 $5,000.00 Charles Gardon Melanie Zimyeski (860)594-2144 Melanie.Zimyeski@ct.gov
Connecticut Department of Transportation 2024 $5,000.00 Charles Gardon Melanie Zimyeski (860)594-2144 Melanie.Zimyeski@ct.gov
Connecticut Department of Transportation 2025 $5,000.00 Charles Gardon Melanie Zimyeski (860)594-2144 Melanie.Zimyeski@ct.gov
Connecticut Department of Transportation 2026 $5,000.00 Charles Gardon Melanie Zimyeski (860)594-2144 Melanie.Zimyeski@ct.gov
Connecticut Department of Transportation 2027 $5,000.00 Charles Gardon Melanie Zimyeski (860)594-2144 Melanie.Zimyeski@ct.gov
Delaware Department of Transportation 2023 $25,000.00 Michael DuRoss Nicole Johnson 302-760-2092 nicole.johnson@delaware.gov
Delaware Department of Transportation 2024 $25,000.00 Michael DuRoss Nicole Johnson 302-760-2092 nicole.johnson@delaware.gov
Georgia Department of Transportation 2023 $5,000.00 Peter Wu Brennan Roney 404-347-0595 broney@dot.ga.gov
Georgia Department of Transportation 2024 $5,000.00 Peter Wu Brennan Roney 404-347-0595 broney@dot.ga.gov
Georgia Department of Transportation 2025 $5,000.00 Peter Wu Brennan Roney 404-347-0595 broney@dot.ga.gov
Georgia Department of Transportation 2026 $5,000.00 Peter Wu Brennan Roney 404-347-0595 broney@dot.ga.gov
Georgia Department of Transportation 2027 $5,000.00 Peter Wu Brennan Roney 404-347-0595 broney@dot.ga.gov
Idaho Department of Transportation 2023 $25,000.00 Dana Dietz Ned Parrish 208-334-8296 ned.parrish@itd.idaho.gov
Kansas Department of Transportation 2023 $20,000.00 Dan Wadley David Behzadpour 785-291-3847 David.Behzadpour@ks.gov
Kansas Department of Transportation 2024 $20,000.00 Dan Wadley David Behzadpour 785-291-3847 David.Behzadpour@ks.gov
Kansas Department of Transportation 2025 $20,000.00 Dan Wadley David Behzadpour 785-291-3847 David.Behzadpour@ks.gov
Kansas Department of Transportation 2026 $20,000.00 Dan Wadley David Behzadpour 785-291-3847 David.Behzadpour@ks.gov
South Dakota Department of Transportation 2023 $5,000.00 Darin Hodges Thad Bauer 6057734404 thad.bauer@state.sd.us
South Dakota Department of Transportation 2024 $5,000.00 Darin Hodges Thad Bauer 6057734404 thad.bauer@state.sd.us
South Dakota Department of Transportation 2025 $5,000.00 Darin Hodges Thad Bauer 6057734404 thad.bauer@state.sd.us
South Dakota Department of Transportation 2026 $5,000.00 Darin Hodges Thad Bauer 6057734404 thad.bauer@state.sd.us
South Dakota Department of Transportation 2027 $5,000.00 Darin Hodges Thad Bauer 6057734404 thad.bauer@state.sd.us
Texas Department of Transportation 2023 $5,000.00 Andy Naranjo Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2024 $5,000.00 Andy Naranjo Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2025 $5,000.00 Andy Naranjo Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2026 $5,000.00 Andy Naranjo Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2027 $5,000.00 Andy Naranjo Ned Mattila 512-416-4727 ned.mattila@txdot.gov

Study Description

Objectives

Study objectives

To evaluate a wide selection of concrete mix designs to validate the use of the new AASHTO TP-144-21 (T-FAST) and alkali threshold test (ATT) methods in conjunction with mix design data, cement mill reports and SCM properties to determine the likelihood of ASR gel formation in concrete.

Background

The formation of ASR gels in concrete has been a major issue for the industry since they were first discovered in the 1930s. The gels are formed by the reaction of the alkalis from the cement with the silica in certain ASR susceptible aggregates. The gels can absorb water, swell, and cause the concrete to crack.

The first tests to determine the ASR susceptibility of aggregates came out in 1947. There have been many tests since then. They mostly rely on the measurement of engineering properties. Typically, a sample of mortar or aggregate is immersed in sodium hydroxide solution at elevated temperature and the physical expansion of the sample measured after a period. The T-FAST method is a more sensitive and accurate test which predicts ASR expansion using purely chemical measurements. The test is completed in 21 days.

Although these tests can detect ASR reactive sites in aggregates, they cannot determine whether gels will form in the resulting concrete. That depends on the alkali loading of the mix. The idea of measuring the alkali threshold of aggregates has been discussed for many years although no simple or reliable test has been available. A new test, (ATT) has been developed in the chemistry laboratory at the Turner Fairbank Highway Research Center (TFHRC). The test is simple and is completed in 21 days. With the ATT method it is possible to determine the likelihood of ASR formation in concrete.

While research at TFHRC supports this notion there is a need to verify the validity of this technique by evaluating many commonly used aggregates.

Scope of Work

Partners in this pooled fund study will select concrete mix designs with known ASR field performance either positive or negative.  They will supply samples of concrete mixtures components including aggregates, cements, and SCMs along with the corresponding mix designs to TFHRC where the chemistry laboratory will use the T-FAST and ATT methods to evaluate their ASR reactivity and the alkali threshold of the aggregate combination. This information will be compared against the alkali loading of the provided mixes to ensure that the T-FAST/ATT combination would have predicted field performance. Further, these results will be used to design an ASR mitigation test like T-FAST.

Comments

Funding: Partner agencies who are interested in the topic are requested to contribute a minimum of $5,000 a year for the five years of the TPF study. The scope of the project is scalable based on the level of funding received. FHWA is already contributing significant resources to the topic area and will likely dedicate further resources in the future. 

Title File/Link Type Private
Acceptance Letter Memorandum Public
TPF-5 (521) Acceptance Letter TPF5(521) New Performance Approach to Evaluate ASR in Concrete Acceptance Letter (002).pdf Other Public
Title File/Link Type Private
SPR Waiver Approval Memo SPR Waiver Memo Solicitation 1585_.pdf Memorandum Public

Currently, Transportation Pooled Fund is not supported on mobile devices, please access this Web portal using a desktop or laptop computer.