Date of Graduation

5-2023

Document Type

Thesis

Degree Name

Bachelor of Science in Civil Engineering

Degree Level

Undergraduate

Department

Civil Engineering

Advisor/Mentor

Barry, Michelle L.

Committee Member/Reader

Zhang, Wen

Abstract

The advent of additive manufacturing, often called 3D printing, offers potential for new and more sustainable soil improvement techniques. Previous research at the University of Arkansas has examined Microbially Induced Calcite Precipitation (MICP) as a possible binder option that is a more sustainable alternative to Portland cement and can be used in remote areas where Portland cement may not be available. The objective of this research is to develop an increased understanding of the potential of utilizing MICP as a spray binding technique for applications in 3D printed soils. The specific goals of this research include: examining the effectiveness of a spray application method completed in a single layer of different soils, applying the spray application on a larger scale to assess the feasibility of 3D printing soil patterns, and identifying future applications and research of MICP as a ground improvement technique.

Keywords

MICP; ground improvement; soil stabilization

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