Evaluation of Performance of Coal Ash in Florida Structural Concrete

Zayed, Abla; Riding, Kyle; Nnaa, Kelvin

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Evaluation of Performance of Coal Ash in Florida Structural Concrete

2025-06-01
By Zayed, Abla ; Riding, Kyle ; Nnaa, Kelvin

File Language:

English

Details

Creators:

Zayed, Abla ; Riding, Kyle ; Nnaa, Kelvin
Corporate Creators:

University of South Florida. Department of Civil and Environmental Engineering
Corporate Contributors:

Florida. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Cement Coal Concrete Corrosion Durability Environmental Policy Fly Ash Landfills Literature Reviews Performance Evaluations Sodium Sulfate Structural Materials
Resource Type:

Tech Report
Geographical Coverage:

United States ; Florida
Edition:

Final Report: March 18, 2024-June 30, 2025
Corporate Publisher:

Florida. Department of Transportation
Abstract:

Recent coal-fired power plant closures resulted in limited availability of fresh fly ash in some regions of the United States of America. This combined with stricter environmental regulations has led to national specifications being modified to allow the use of coal bottom ash in addition to coal fly ash as a supplementary cementitious material in making concrete. Coal bottom ash is different from coal fly ash in its chemical, physical and mineralogical composition. The literature review conducted in this study identified variability in performance of coal ash that can be related to variability in the available sources of the collected coal ash; namely, landfills, lagoons or freshly collected bottom ash. The findings indicate that the work is needed to ensure consistent performance of coal ash collected from variable sources. It is recommended that a study on coal ash performance be initiated to ensure adequate and consistent performance and durability of structural concrete elements in the state of Florida using coal ash as a supplementary material.
Format:

PDF
Funding:

BED25-977-21
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:3fc9b592c2090ebd5ec40788244e88931c3497b5e520bd580a8e61a9d2d655b814aac479676ddfab33c687641748906e5081d5cb957680040bf5760f3c722a5d
Download URL:

https://rosap.ntl.bts.gov/view/dot/88903/dot_88903_DS1.pdf
File Type:

[PDF - 702.38 KB ]

File Language:

English

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