Abstract
3D printed construction has recently emerged as a new building technology, with various experiences disseminated around the world. This paper reviews existing documents and examples of this technology to characterize its potential projections, particularly those oriented towards improving productivity and sustainability of construction in Chile. Scientific and conference papers, technical reports and thesis are analyzed, as well as the dissemination of executed constructions on the Internet, in order to understand the developments and attributes of this building system. Also, the current conditions and challenges of the construction sector in Chile are summarized, and consultations to stakeholders about their knowledge and expectations of this technology are included. The results from this review highlight the trending topics in different countries, which mostly consist of experimental houses built with cementitious mixes deposited with cranes or robots. According to documents and practitioners from Chile, the interest of applying this technology in our country could be mainly focused on the industrialization of residential envelopes with high thermal and seismic capacities.
Highlights
Chile is an emerging Latin America country, with increasing and exemplary construction industry in the continent (Prom Peru, 2015)
Significant deficiencies have been identified with regard to the energy performance of existing buildings, quality of urban air and environmental impact of construction processes (CDT, 2010); (CNE, 2017), as well as work performance stagnation, fragmentation of activities, and a low level of digital management and industrialization (CORFO and PMG, 2016); (Loyola and López, 2018)
The constant demand for low cost housing shows the need for a special approach in the application of new technologies in small buildings, but the concerns expressed by investors and professionals regarding the consequent labor force reduction, and earthquake-resistant requirements for the structures in Chile, generates specific challenges in the country with regard to the introduction of innovating construction technologies
Summary
Chile is an emerging Latin America country, with increasing and exemplary construction industry in the continent (Prom Peru, 2015). The Chilean government promoted a public-private plan aimed at introducing new technologies and developments in the construction industry, by boosting process automation (CORFO, 2014). New systems and potential applications must be identified and developed, in accordance with the technological progress and local requirements and interests. With this purpose in mind, this paper seeks to identify the current state of 3D printed construction and, especially, its possibilities and potential introduction in Chile, in order to establish a link between achieved developments and the conditions of the national construction industry, allowing the identification of specific developments for the near future. The present document makes a review of papers addressing this topic and initial experiences throughout the world, as well as a brief analysis of the national industry and the perception of stakeholders
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