Development of the UHPC Mix for 3D Printing

Authors

Buse Ilayda Oz, Florida International UniversityFollow

Document Type

Thesis

Degree

Master of Science (MS)

Major/Program

Civil Engineering

First Advisor's Name

Atorod Azizinamini

First Advisor's Committee Title

committee chair

Second Advisor's Name

Amal Elawady

Second Advisor's Committee Title

committee member

Third Advisor's Name

Wallied Orabi

Third Advisor's Committee Title

committee member

Fourth Advisor's Name

Kingley Lau

Fourth Advisor's Committee Title

committee member

Keywords

Ultra-high performance concrete, 3D concrete printing, additive manufacturing, mechanical properties

Date of Defense

3-29-2022

Abstract

This thesis utilizes the development of Ultra-High-Performance Concrete mix design for 3-Dimensional (3D) Printing purposes. 3D concrete printing offers many advantages such as the improvements in safety, quality, and productivity. Moreover, it holds a great advantage for the construction of structural elements that are difficult to construct by conventional methods. These advantages carry a huge potential for solving the aforementioned challenges.

Seven UHPC mixes have been designed and analyzed using various test setups for comparison purposes. Extrudability, flowability, buildability, and open time were measured using the fresh properties of the UHPC mixes. Mechanical properties were measured using compression test setups. The optimum mix design has reached up to 18 inches before the collapse. This mix has achieved an average 28 days strength of 17.25 ksi with a flowability value of 4.5 inches.

Identifier

FIDC010702

Recommended Citation

Oz, Buse Ilayda, "Development of the UHPC Mix for 3D Printing" (2022). FIU Electronic Theses and Dissertations. 4957.
https://digitalcommons.fiu.edu/etd/4957