Prospect and barrier of 3D concrete: a systematic review

Abstract

This paper aims to explore the current state of the art and potential of 3D concrete printing and its use in large-scale applications. The study analysed 373 academic research, all of which were obtained from the Scopus database. The review conducted on some crucial issues on development of 3D concrete that included materials and their desirable properties, printer nozzle developments, reinforcement in printing, geopolymers as printing materials, and the use of coarse graded aggregates. This study provides researchers and institutions with an in-depth insight into 3D concrete printing and research trends worldwide and assesses the future of 3D concrete printing in large-scale applications. The requirement of more research on the mechanics of 3D printers, standardising a printer nozzle, the automation of reinforcing processes, and use of coarse graded aggregate for large-scale structural application were identified in this review. It also shows how 3D concrete printing has evolved and changed over time and gives an insight into the future of 3D concrete printing—making this scientometric review a framework for future studies.

3D Printing in Construction, Mixture Characteristics, Strength, and Thermal Performance-Review

“…There are numerous requirements that must be satisfied for the 3D concrete to have an "ideal" mix design, depending on whether the mix is designed for workability or compressive strength. For compressive strength, concrete's flowability and setting rate are maximized; nevertheless, for workability, pourability is prioritized and a sufficient setting rate is maintained (Malaeb et al 2019;Strohle et al 2023).…”

Concrete Additive Manufacturing in Construction: Integration Based on Component-Related Fabrication Strategies

“…Several literature reviews have explored the integration of concrete additive manufacturing into the construction industry so far. Some reviews have focused on the overall implementation to highlight the general potential, future challenges, or barriers of AM [12][13][14][15][16]. Others have focused more on the differences between the AM methods or their underlying material properties [17][18][19].…”