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Three-dimensional printing (3DP) has been rapidly evolving to be one of the leading technology fields in the coming decades. However, as in the early years of new technologies, 3DP suffers from technical limitations and various implications. This study focuses on the applications of 3DP in the construction industry, emphasizing its environmental, financial, and social sustainability aspects. A systematic bibliographic analysis was carried out for the relevant publications which increased by 25-fold from 2014 to 2021. The 3D-printed construction projects in the United Arab Emirates (UAE) are presented to demonstrate the early 3DP technology penetration into its booming construction sector. The UAE case is of particular interest from a sustainability perspective due to the environmental footprint of the ample construction activities in the country, combined with the ambitious strategic plans to achieve sustainable development goals. This critical analysis shows that, despite the limited literature, 3DP could potentially be a sustainable alternative with up to 49% less environmental footprint and 78% more cost-effectiveness compared to conventional construction techniques. As the social sustainability aspect was the least addressed, this study discusses relevant social impact indicators and systematic assessment criteria. It is evident that 3DP is already reshaping the future of the built environment, especially in cases where 3DP is advantageous, such as customized designs, quick project delivery, and sustainability-oriented constructions.
Ibrahim et al. (Sun,) studied this question.
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