Effect of using Nanocellulose on the Mechanical Performance of Biochar Mortars

Presentation Type

Poster

Conference Date

Spring 4-17-2026

Abstract

Concrete remains a fundamental material for U.S. infrastructure; however, cracking and reduced long-term durability continue to pose significant challenges to its use. To address these issues, this study investigates the incorporation of biochar-based Agricultural Residue Char (ARC) as an internal curing agent, combined with nanocellulose derived from rice husk, to enhance the mechanical performance and crack resistance of concrete. Unlike traditional supplementary cementitious materials, which require high replacement levels, nanomaterials can improve concrete performance at low doses (1-2 wt.%). ARC is utilized to improve later-age performance by reducing shrinkage and enhancing long-term crack resistance through controlled internal curing. Nanocellulose was created through an acid hydrolysis process, the dispersion of nanocellulose in the cementitious was carefully analyzed through Transmission Electron Microscopy (TEM). Mortar mixtures incorporating nanocellulose and ARC contents were evaluated through mechanical testing. Selected high-performance mixtures will be further examined using flexural toughness testing (ASTM C1609) and shrinkage measurement (ASTM C157). By integrating agricultural waste resources into concrete systems, this research demonstrates a sustainable and economically viable approach to improving crack resistance, durability, and long-term performance for infrastructure use.

Presenter

Kevin Yanez Orellana

Faculty Mentor

Hassan Noorvand

Award

Top 5 Individual Presenter, LSU College of Engineering

Academic Major

Civil Engineering

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