Development of Alkali-Activated 3D Printable Concrete: A Review

Syed Mujeeb, Manideep Samudrala, Bhagyashri A. Lanjewar, Ravijanya Chippagiri, Muralidhar Kamath and Rahul V. Ralegaonkar ()
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Syed Mujeeb: Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur 440010, India
Manideep Samudrala: Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur 440010, India
Bhagyashri A. Lanjewar: Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur 440010, India
Ravijanya Chippagiri: Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur 440010, India
Muralidhar Kamath: General Manager—Technical Services, Apple Chemie India Private Limited, Nagpur 440022, India
Rahul V. Ralegaonkar: Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur 440010, India

Energies, 2023, vol. 16, issue 10, 1-21

Abstract: The construction world has changed day by day and is becoming more digitalized by introducing new technologies. Three-dimensional concrete printing (3DCP) is one such technology that has automated building process along with several benefits such as reduced material waste, reduced human hazard, and time savings. Traditionally, this technique utilizes cement to construct numerous structures, resulting in a significant carbon footprint and negative environmental impact. There is a need to find alternate solutions to reduce cement consumption. Alkali activation technology has replaced cement completely. The scope of development of alkali-activated 3D printable concrete utilizing agro-industrial byproducts is presented in this study. A review of the fresh and hardened properties of alkali-activated 3D printable concrete was the primary objective. The change in properties of 3D concrete mixes with the variation of additives that influence the ultimate strength parameters is presented. This study explores the curing conditions and in-depth behavior of uses of 3DCP in the construction industry. The environmental benefits over conventional concreting technology are presented. As per previous studies, the optimum mix composition per cubic meter concrete is 600–700 kg/m 3 of binder content, 450 kg/m 3 of alkali activator solution, and 600–800 kg/m 3 of fine aggregate content. This study contributes to the making of 3D printable alkali-activated concrete.

Keywords: 3DCP; alkali activation; carbon emissions; 3D printer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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