Peer-to-Peer Webinar: 3D Printed Concrete and Carbon Sequestration in Construction Materials

Theme of the Peer-to-Peer Webinar: 3D Printed Concrete and Carbon Sequestration in Construction Materials.

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Speaker 1: Kirushnapillai Kopitha, PhD Student, Swinburne University of Technology

Title 1: Towards amine-based CO2 capture in cement-based materials

This research aims to enhance CO2 sequestration in cement-based materials by integrating amines, which are organic compounds with nitrogen atoms capable of bonding with CO2. The study examines how these amines improve CO2 capture within essential hydrated phases like portlandite and Calcium-Silicate-Hydrate (C-S-H). Findings indicate that amines significantly accelerate CO2 mineralisation, leading to notable microstructural changes and increased calcite formation. By advancing the development of sustainable construction materials, this work positions buildings to function as "synthetic trees," offering an innovative approach to reducing atmospheric CO2 and mitigating global warming.

Speaker 2: Dr Pshtiwan Shakor, University of Technology Sydney

Title 2: Inkjet Mortar 3DP materials, Methodology and its Application

Inkjet 3D Printing is a popular and widely used technology, which can be applied to print a wide range of specimens using different powder materials. This presentation discusses a use of inkjet 3DP technology for construction applications using custom-made powder instead of commercial gypsum powder (ZP 151). The presentation aims to address the differences between ZP 151 and CP (a custom-made construction-specific cement mortar powder) with regard to powder flowability, wettability, powder bed porosity and apparent porosity in 3DP specimens. This presentation overview the application of the printed objects and shows the optimisation of the printed materials, process, orientation angle, FEM, and saturation level.

This webinar is brought to you by the RILEM Youth Council (RYC) and hosted by Liam Martin (Pacific RYC representative).