Civil Engineering ETDs

Publication Date

Summer 7-15-2024

Abstract

3D printing (3DP), or additive manufacturing, represents a dynamic and swiftly advancing manufacturing method in which diverse materials are deposited layer by layer through computer-controlled processes, creating intricate geometries. This technology has demonstrated success in various construction applications, including the construction of bridges, bus stop stations, and even residential homes. Nonetheless, the predominant application of 3DP in construction relies heavily on cement due to its robustness, convenience, and ease of use. Regrettably, the cement sector is a substantial source of greenhouse gas emissions, responsible for approximately 8% of worldwide CO2 emissions. Investigating all facets of carbon emissions reduction is imperative to create sustainable buildings and infrastructure. Using 3D soil printing (3DSP) with locally sourced soil materials represents a promising stride toward achieving carbon-neutral construction. Sustainable construction should encompass a product's energy efficiency and the comprehensive evaluation of its local and global environmental, community, and economic impacts throughout the production process, from inception to completion. Vernacular structures made from locally available resources such as soil, clay, and fiber have been found worldwide. New México (NM) stands out in North America for its extensive history and techniques of building with local soil that has been passed down through traditions for thousands of years. This research explores the complexities of integrating contemporary engineering and traditional testing practices for 3DSP with local materials to create sustainable construction solutions. This research works towards creating a 3DSP traditional horno (outside oven) for the local Native American Community Academy (NACA). This exploration examines durability characteristics of local NM soil including soil mix composition, grain size distribution, mechanical properties, shrinkage rates, pumpability, extrudability, and buildability of the studied earthen mixtures needed for 3DSP towards sustainable construction.

Keywords

Sustainable Construction, 3D-Printing, Adobe, Earthen Mixture, Compressive Strength, Shrinkage, Printability

Sponsors

Transformation Network, National Science Foundation

Document Type

Thesis

Language

English

Degree Name

Civil Engineering

Level of Degree

Masters

Department Name

Civil Engineering

First Committee Member (Chair)

Dr. Maryam Hojati

Second Committee Member

Dr. Anjali Mulchandani

Third Committee Member

Francisco Uviña-Contreras

Download

Share

COinS