U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

Skip to content
Facebook iconYouTube iconTwitter iconFlickr iconLinkedInInstagram

Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

This report is an archived publication and may contain dated technical, contact, and link information
Back to Publication List        
Publication Number:  FHWA-HRT-22-016    Date:  January 2022
Publication Number: FHWA-HRT-22-016
Date: January 2022


Exploratory Advanced Research Program

Machine Learning and Pozzolans for Concrete for Highway Pavements and Structures

PDF Version (6.25 MB)



Technical Report Documentation Page

1. Report No.


2. Government Accession No. 3 Recipient's Catalog No.
4. Title and Subtitle

Machine Learning and Pozzolans for Concrete for Highway Pavements and Structures

5. Report Date

January 2022

6. Performing Organization Code
7. Author(s)

Volpe National Transportation Systems Center

8. Performing Organization Report No.


9. Performing Organization Name and Address

Volpe National Transportation Systems Center
55 Broadway, Kendall Square
Cambridge, MA 02142

10. Work Unit No. (TRAIS)

11. Contract or Grant No.


12. Sponsoring Agency Name and Address

Federal Highway Administration
6300 Georgetown Pike
McLean, VA 22101

13. Type of Report and Period Covered

Workshop Summary Report
December 14 and 15, 2020

14. Sponsoring Agency Code


15. Supplementary Notes

The Contracting Officer's representative is Kelley McKinley (HRTM-20). The Technical Contacts are Robert Spragg and Jack Youtcheff (HRDI-10).

16. Abstract

On December 14 and December 15, 2020, the Federal Highway Administration's (FHWA) Office of Infrastructure Research and Development held a virtual workshop called "Machine Learning and Pozzolans for Concrete Infrastructure Materials" with 80 participants in attendance. The workshop, consisting of eight presentations, largely focused on three ongoing Exploratory Advanced Research Program projects and one National Cooperative Highway Research Program project related to the pressing issue of finding new sources of supplementary cementitious material (SCM) for use in concrete for our Nation's roadway infrastructure.

For decades, fly ash, a by-product of coal plants' power-generating process, has been an important source of SCM for highway infrastructure concrete, enhancing the performance, economic feasibility, durability and sustainability of cement mixtures containing ordinary portland cement. As a result of environmental regulations and a general transition of power utilities' fuel source from coal to natural gas in recent years, high-quality fly ash has become increasingly scarce. In response, FHWA organized a workshop to illustrate ongoing research related to the pursuit of fly ash alternatives to ensure the sustainability of our Nation's roadway infrastructure.

17. Key Words

SCM, fly ash, NNP, machine learning, cement, concrete, reclaimed fly ash, artificial intelligence

18. Distribution Statement

No restrictions. This document is available to the public through the National Technical Information Service, Springfield, VA 22161.

19. Security Classification
(of this report)


20. Security Classification
(of this page)


21. No. of Pages


22. Price

Form DOT F 1700.7 (8-72) Reproduction of completed page authorized

SI* (Modern Metric) Conversion Factors



Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101