Modeling Fly Ash Based Geopolymer Flow for 3D Printing Applications

Author(s): Biranchi Panda, Li Mingyang, Yi Wei Daniel Tay, Suvash Chandra Paul and Ming Jen Tan 9
Paper category: Proceedings
Book title: Proceedings of International Conferences (ICACMS) Advances in Construction Materials and systems Vol 2
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN: 978-2-35158-194-0
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 34-40
Total Pages: 7
Language : English

Abstract: 3D printing is gaining attraction in the construction industry because of its significant benefits over the traditional construction methods. Present construction methods are dependent on the large amount of manpower and time to erect formwork and place concrete, and it is believed that by using a 3D printing technique, these can be significantly reduced. 3D concrete printing is a formwork less construction method, where concrete is deposited layer by layer as per the design specified in a computer aided design (CAD) model. Literature reveals that it requires combination of appropriate rheology, advanced delivery and control
system for the successful application. Therefore, this paper aims to study the rheological properties of geopolymer mortar and propose a flow model for 3D printing application. Results conclude that, the material must possess thixotropic behaviour, which will allow a decrease in viscosity during pumping and quick reflocculation to recover under static conditions after deposition. Considering global demand for a sustainable built environment, 3D printing of geopolymer could be a major breakthrough for faster and eco-friendly
construction.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00