Scientists have developed a 3D concrete printing method that captures carbon, demonstrating a new pathway to reduce the environmental impact of the construction industry.
Scientists have developed a 3D concrete printing method that captures carbon, demonstrating a new pathway to reduce the environmental impact of the construction industry. Scientists at Nanyang Technological University, Singapore have developed a 3D concrete printing method that captures carbon, demonstrating a new pathway to reduce the environmental impact of the construction industry.
, aims to significantly reduce the carbon footprint of cement -- a material responsible for 1.6 billion metric tonnes of carbon dioxide , and NTU's Singapore Centre for 3D Printing , said,"The building and construction sector causes a significant portion of global greenhouse gas emissions. Our newly developed 3D concrete printing system offers a carbon reducing alternative by not only improving the mechanical properties of concrete but also contributing to reducing the sector's environmental impact. It demonstrates the possibility of using COproduced by power plants or other industries for 3D concrete printing. Since traditional cement emits a lot of carbon, our method offers a way to plough back COThe research team believes their innovation represents a promising contribution towards achieving global sustainable development goals and reducing the industry's reliance on conventional energy-intensive processes like reinforced concrete construction. The new development builds on previous 3D printing for construction research by Prof Tan and his team at NTU's SC3DP, as well as international collaborators.reacts with the components in the concrete, turning into a solid form that stays locked inside the material . At the same time, steam improves the absorption of COIn lab tests, researchers found the printed concrete structure showed a 50 per cent improvement in printability -- meaning it can be shaped and printed more efficiently. The structure also displayed better strength and durability. The printed concrete was up to 36.8 per cent stronger in compression and up to 45.3 per cent stronger in bending compared to regular 3D printed concrete. Notably, the method is also greener, absorbing and trapping 38 per cent more carbon dioxide compared to traditional 3D printing methods. First author Lim Sean Gip, PhD candidate from NTU School of MAE, said,"We are at a critical time where the world is accelerating efforts to meet climate change targets. We believe our technology could contribute to making the construction industry more sustainable." Co-author, Dr Daniel Tay, Research Fellow from NTU School of MAE, said,"Our proposed system shows how capturing carbon dioxide and using it in 3D concrete printing could lead to stronger, more eco-friendly buildings, advancing construction technology." A US patent application for the innovation has been filed jointly by NTU and collaborators. In future research, the researchers plan to optimise the 3D printing process to make it even more efficient and potentially use waste gases instead of pure carbon dioxide.Sean Gip Lim, Yi Wei Daniel Tay, Suvash Chandra Paul, Junghyun Lee, Issam T. Amr, Bandar A. Fadhel, Aqil Jamal, Ahmad O. Al-Khowaiter, Ming Jen Tan.Carbon capture is essential to reduce the impact of human carbon dioxide emissions on our climate. Researchers have developed a method to confirm whether carbon in concrete originates from the raw ... A viable formula for a carbon-negative, environmentally friendly concrete that is nearly as strong as regular concrete has been developed. In a proof-of-concept work, the researchers infused ... A new kind of concrete could reduce emissions from the construction industry. Calcium carbonate concrete is made from waste concrete and carbon dioxide from the air or industrial exhaust gases. It ... A new study has found that shifting to wood as a building construction material would significantly reduce the environmental impact of building construction. If 80% of new residential buildings in ...
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