China3D printingOn August 20th, an engineer from the University of California, Los Angeles (UCLA) has received a $1.5 million grant from the National Science Foundation (NSF) for the development of environmentally friendly 3D printable concrete.
As the most popular building material in the world, developing a more sustainable alternative to concrete and applying it to new technology-driven methods can greatly reduce its carbon emissions.
“This grant allows us to use the latest developments in artificial intelligence and machine learning to design more sustainable products.” commented Mathieu Bauchy, a computational materials scientist and assistant professor of civil and environmental engineering at UCLA’s Samueli School of Engineering.
“Our goal is to build a conservative, practice-based industry that evolves into a knowledge and data-intensive industry in the 21st century.”
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Prototype samples of concrete. The volume of the cube is approximately 1 square inch” alt=”
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Prototype samples of concrete. The volume of the cube is about 1 square inch” />
3D printingPrototype samples of concrete. The volume of the cube is approximately 1 square inch.Image: University of California, Los Angeles
Concrete solution
According to the principal investigator of the grant, Professor Bauchy, the current process of manufacturing cement accounts for approximately 8% of global anthropogenic carbon emissions. As part of the NSF reform and design of our future plans for design materials, this grant will enable the development of an alternative method that will reduce this pollution by approximately 60%.
The UCLA team will first understand and control the flow of cement slurry and how to make it suitable3D printing. Then the process of maximizing the amount of carbon dioxide incorporated into the cement will be explored.In the third and final step, machine learning will be used to find light weights with high load-bearing capacity3D printingstructure.
Other efforts to improve the carbon footprint of concrete include a project by the U.S. Army Corps of Engineers (USACE). This patented concrete composition helps limit the waste of concrete caused by material clogging in machinery.Pennsylvania State University (PSU) recently received US$75,000 to develop its3D printingConcrete system.With them in NASA3D printingBased on the experience in the Mars Habitat Challenge, the PSU team is also designing high-performance, sustainable concrete, using a new cement-based mixture in conjunction with a six-axis robotic additive manufacturing machine.
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