Theses and Dissertations

ORCID

https://orcid.org/0009-0006-3024-7348

Advisor

Wang, Fei

Committee Member

Doyle, Jesse D.

Committee Member

William, Sullivan G.

Committee Member

Okuyucu, Osman

Date of Degree

12-12-2025

Original embargo terms

Immediate Worldwide Access

Document Type

Graduate Thesis - Open Access

Major

Civil Engineering

Degree Name

Master of Science (M.S.)

College

James Worth Bagley College of Engineering

Department

Richard A. Rula School of Civil and Environmental Engineering

Abstract

Extensive research has been conducted on biochar-incorporated concrete. However, no concrete mixture design guideline is currently available for implementing biochar incorporation in practice. The objective of this study was to correlate biochar absorption capacity with the compressive strength of biochar-incorporated concrete, to quantify the benefits of biochar and develop mix design guidelines. Biochar with varying absorption capacities was incorporated into concrete at 10%, 20%, and 40%. Strength and moisture loss were recorded over the 90-day curing period of the biochar-incorporated concrete. Results revealed three main findings: (1) in 10%, 20%, and 40% biochar mixes, the normalized strengths ranged from 0.65–0.85, 0.30–0.45, and 0.15–0.25, respectively; (2) moisture loss in all specimens was approximately 10%; and (3) adding biochar reduced the slump of the concrete. With results in this study and previous studies, a preliminary design chart was developed to guide the design of biochar-incorporated concrete.

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