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Three-dimensional concrete printing (3DCP) is poised to address such critical challenges as low productivity in construction while offering design flexibility and material usage optimization. Although prior research focused on integrating digital design and fabrication to generate instructions for three-dimensional (3D) printers, existing approaches fall short of developing a building information modeling (BIM) model with the requisite detail for coordination with other construction activities and a lack of customization for defining the printing sequence. This paper streamlines the automation of the modeling process and generation of BIM parameters to consolidate project planning information within a unified level of development (LOD) 400 BIM model. The proposed workflow introduces an automation tool designed to enhance the LOD in 3DCP BIM elements from a lower LOD to LOD 400, which is suitable for fabrication. This proposed approach contributes to industry practices by providing an automated tailored solution for contractors to customize printing sequences and facilitate seamless coordination between 3D-printed elements and nonprinted components, improving overall project efficiency and precision. The outcomes shed light on project visualization and coordination through a detailed 3DCP BIM model and introduce planning parameters for enabling a printing strategy that can incorporate the contractor’s expertise in contrast to other slicer software.more » « lessFree, publicly-accessible full text available September 1, 2026
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Within Architecture, Engineering, and Construction (AEC), 3D Printing Construction (3DPC) offers significant potential by facilitating design flexibility, reducing reliance on formwork, and enhancing sustainability. However, the broader adoption of 3DPC is hindered by critical challenges, including lack of standards, material properties, and extra costs associated with a high initial investment. While previous studies have already explored the opportunities and barriers regulating the adoption of this technology from the perspective of a developed country, there is a critical need to better understand its potential in developing nations. This research aims to identify the AEC community's perception of 3DPC across four key dimensions: opportunities, barriers, strategies, and potential applications. Using a structured questionnaire, the perspectives of 341 construction professionals from developing regions were analyzed to comprehensively assess the feasibility and potential impact of 3DPC in these contexts, informing future strategies for effective implementation. This research contributes to understanding how 3DPC can revolutionize construction practices in developing countries, promoting sustainable and efficient infrastructure development.more » « lessFree, publicly-accessible full text available June 19, 2026
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