Abstract
The main goal of this research is to develop a carbonated cementitious material (CCMs) mix design and demonstrate its rapid stiffening for manufacturing 3D printed or precast elements for building construction (i.e., concrete with enhanced durability and CO2 capture efficiency). The material development employs hydrated Ca(OH)2, and its distinct reaction with CO2 to form CaCO3. Different formulations and additives including polymer materials enable the thermomechanical properties that give these CCMs 3D printability comparable with cement materials used for similar applications. Printable and castable CCM formulations were successfully developed and demonstrated to mineralize CO2 to form up to 57% CaCO3.
Original language | English |
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Pages (from-to) | 435-444 |
Number of pages | 10 |
Journal | Progress in Additive Manufacturing |
Volume | 9 |
Issue number | 2 |
DOIs | |
State | Published - Apr 2024 |
Funding
This research was supported by the Laboratory Directed Research & Development Seed Money Fund at the Oak Ridge National Laboratory. A portion of this research was carried out at the Center for Nanophase Materials Sciences, which is a US Department of Energy Office of Science User Facility. Access to the Raman spectrometer was provided by the Nuclear Nonproliferation Division, Oak Ridge National Laboratory. This manuscript has been authored by UT-Battelle LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).
Funders | Funder number |
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U.S. Department of Energy | |
Oak Ridge National Laboratory | |
Laboratory Directed Research and Development | |
UT-Battelle | DE-AC05-00OR22725 |
Keywords
- 3D printing
- Calcium carbonate
- Carbonation