A Concise Review on Interlayer Bond Strength in 3D Concrete Printing

Adewumi John Babafemi, John Temitope Kolawole, Md Jihad Miah, Suvash Chandra Paul and Biranchi Panda
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Adewumi John Babafemi: Department of Civil Engineering, Stellenbosch University, Stellenbosch 7602, South Africa
John Temitope Kolawole: School of Architecture, Building and Civil Engineering, Loughborough University, Loughborough LE11 3TU, UK
Md Jihad Miah: Department of Civil Engineering, University of Asia Pacific, Dhaka 1205, Bangladesh
Suvash Chandra Paul: Department of Civil Engineering, International University of Business Agriculture and Technology, Dhaka 1230, Bangladesh
Biranchi Panda: Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India

Sustainability, 2021, vol. 13, issue 13, 1-18

Abstract: Interlayer bond strength is one of the key aspects of 3D concrete printing. It is a well-established fact that, similar to other 3D printing process material designs, process parameters and printing environment can significantly affect the bond strength between layers of 3D printed concrete. The first section of this review paper highlights the importance of bond strength, which can affect the mechanical and durability properties of 3D printed structures. The next section summarizes all the testing and bond strength measurement methods adopted in the literature, including mechanical and microstructure characterization. Finally, the last two sections focus on the influence of critical parameters on bond strength and different strategies employed in the literature for improving the strength via strengthening mechanical interlocking in the layers and tailoring surface as well as interface reactions. This concise review work will provide a holistic perspective on the current state of the art of interlayer bond strength in 3D concrete printing process.

Keywords: 3D concrete printing; interlayer bond strength; mechanical interlocking; bond testing; characterization (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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