On site deployment of 3D printing for the building construction – The case of Yhnova TM

Aigbavboa

et al. 2020

IJHMA

Purpose Considering the need for standard and cost-effective housing delivery in South Africa, this study aims to make a case for three-dimensional (3D) printing in housing delivery through an assessment of the inherent benefits and the factors that could acts as barriers to its adoption. Design/methodology/approach The study used a survey of construction professionals currently actively involved in a construction project in the country. Analysis of data gathered was done using a four-step analysis approach and relevant descriptive and inferential statistics were adopted. Findings The study revealed through factor analysis that 3D printing in housing delivery promises better cost delivery, increased productivity and stakeholder satisfaction, socio-economic benefits, improved quality and faster housing delivery. While these benefits exist, factors such as technical and operational issues of the 3D printing itself, organizational and personnel issues as well as lack of awareness of the inherent benefits and understanding of the technology among stakeholders can prove to be barriers to the adoption of the technology. Practical implications In the quest to achieve standard and affordable housing which is part of its National Development Plan 2030, the government can adopt 3D printing which promises significant benefits in terms of cost, time, quality, productivity and stakeholders’ satisfaction. Property developers can also adopt the technology to improve their housing delivery, competitive advantage and the economic value of their properties. Originality/value The study contributes significantly to the body of knowledge as it reveals the benefits and barriers of adopting 3D printing in housing delivery in South Africa – an aspect that has not gained significant attention in the fourth industrial revolution and housing delivery discuss in the country.

Section: Literature Reviewmentioning

confidence: 99%

Making a case for 3D printing for housing delivery in South Africa

Aigbavboa

et al. 2020

IJHMA

“…Polyurethane is a polymer bi-component material obtained by mixing together isocyanate and polyol. Polyurethane foam begins to cure in 6 s, expands to nearly 40 times its initial volume to yield a low density of 33 kg/m 3 (Furet B et al, 2019;Poullain P et al, 2018). Combining this technology and robotic trajectory optimization, large parts can be printed, for example, in Figure 1, a large 4-meter object which goes in all directions (Sophie the Giraffe), in the middle a 95 square meter house (YHNOVA: http://batiprint3d.fr) and on the right an industrial hull master (Furet et al, 2019;Poullain et al, 2018).…”

Section: Foam Additive Manufacturing Technologymentioning

confidence: 99%

Foam additive manufacturing technology: main characteristics and experiments for hull mold manufacturing

Paquet

Bernard

Furet

et al. 2021

RPJ

Self Cite

Purpose The purpose of this paper is to present a novel methodology to produce a large boat hull with a foam additive manufacturing (FAM) process. To respond to shipping market needs, this new process is being developed. FAM technology is a conventional three-dimensional (3D) printing process whereby layers are deposited onto a high-pressure head mounted on a six-axis robotic arm. Traditionally, molds and masters are made with computer numerical control (CNC) machining or finished by hand. Handcrafting the molds is obviously time-consuming and labor-intensive, but even CNC machining can be challenging for parts with complex geometries and tight deadlines. Design/methodology/approach The proposed FAM technology focuses on the masters and molds, that are directly produced by 3D printing. This paper describes an additive manufacturing technology through which the operator can create a large part and its tools using the capacities of this new FAM technology. Findings The study shows a comparison carried out between the traditional manufacturing process and the additive manufacturing process, which is illustrated through an industrial case of application in the manufacturing industry. This work details the application of FAM technology to fabricate a 2.5 m boat hull mold and the results show the time and cost savings of FAM in the fabrication of large molds. Originality/value Finally, the advantages and drawbacks of the FAM technology are then discussed and novel features such as monitoring system and control to improve the accuracy of partly printed are highlighted.

JES. Journal of Engineering Sciences

“…Source: [28,27] 3.2.1.3. YHNOVATM House [29,30,31] In 2017, for several months, a team of researchers in France from University of Nantes, Nantes Métropole, Nantes Métropole Habitat , Ouest Valorisation, and their partners began work on a project using an industrial 3D printer and patented AM technology to build a YHNOVA house.…”

Section: Construction Technologymentioning

confidence: 99%

3d Printing Technology in Construction Industry on-Site: Analysis of the Implications

Hanna

2019

Technology has accompanied human race since ancient times through tools that were invented to facilitate his life, which has changed his traditional lifestyles. Use of technology has become a fundamental requirement for all societies. In a world, its title is speed and its identity is progress, today humanity begins a new phase of change as it stands on the threshold of the Fourth Industrial Revolution, which was built on the basis of digital revolution but offers many new technologies related to the automation of the industry. One of the important technologies that plays a major role in this revolution is 3D Printing (3DP), which is one of the most flexible manufacturing methods, and has seen significant development in recent years in many fields. Architecture also had a significant share, not only in design where 3DP was associated with architectural models, but also in the construction industry, where recent studies have been conducted to develop 3DP for manufacturing of buildings, where the site is considered a temporary factory in which the building is manufactured. I.e., its use has transformed into the construction industry, which is one of the vital pillars of development in any country for its benefits to society and the economy. However, little is known about the current role of this technology in the construction industry. Besides, this industry, with growing demand for buildings' construction at the local level, faces many challenges that negatively affect the economy, society and the environment, thus reducing its effective and pivotal role in the development process. Within this context, this study seeks to analyze the impact of using 3DP technology on the various corners of the construction industry on-site, namely: the stage of preparing the architectural working drawings, building implementation phase, and the architectural output. Besides extracting what has changed from the general culture of the construction industry through this technology. By reviewing the stages of preparing architectural working drawings for the 3DP process, in addition to studying some international experiences of buildings constructed using 3DP. Then, the study proposes a methodological framework to apply 3D construction printing technology on the local scene. As such, the study concludes by presenting the most important research findings and proposed recommendations.