Councillors, during the Ordinary Council Meeting on August 25, 2022, decided to employ 3D printing technology for this project to explore its potential for cost-effective and efficient construction. To provide transparency, you can review the business papers from that meeting HERE. This trial aims to assess the viability of 3D printing in amenity block reconstruction, with potential applications in affordable housing projects. You can find more details on Council's recommendation to trial 3D printed housing in Keswick Estate HERE.

Industry

The construction industry at large, including local companies, stands to gain from this. There is an opportunity to observe the technology's performance firsthand and engage directly with us to understand the processes and more. Additionally, public agencies across the nation can draw insights from our experiences.

Council

The specially developed Contourcrete used in the 3D printing is a specially formulated concrete product created in collaboration with the University of NSW (UNSW). It is a stronger grade concrete made from 40 per cent recycled material. Contourcrete is a high-performance material with a cured strength of 45MPa.

Comparing costs to similar structures completed in the past 12-18 months, our 3D printing project shows a 20% reduction. Compared to the current market rate, it is approximately 25% less expensive. This cost-effectiveness is a positive aspect of Council’s innovative approach.

Yes, the 3D-printed walls use a specific, stronger grade concrete with 40% recycled material. During the printing process, steel reinforcement is incorporated into the layers, ensuring the structural integrity of the walls.

While Contour 3D is based in Sydney, all other trades involved in the project, such as earth movers, concreters, plumbers, and electricians, are local contractors. This project has contributed to supporting jobs within the local community.

The design and construction of the new amenity block will incorporate sustainable practices to minimise environmental impact. This may include the use of eco-friendly materials, energy-efficient systems, and other measures aligned with best practices for sustainable construction.

Council staff are closely monitoring the trial's progress within budget. As of December 2023, the trial is meeting its outcomes. Despite some community concerns about the building's structure, the amenities block is structurally sound. Painting is intended to improve aesthetics and restore confidence in the technology. Contour 3D, our construction supplier, is responsible for managing any maintenance needed during the first 12 months post-construction.

Initially, Council chose not to paint the amenity block to observe how it settled into the environment after construction. Now, having seen the expected movement and to enhance the visual appeal for the public, Council has decided to paint the amenity block. This will contribute to the overall aesthetics and make it more appealing to everyone.

3D printing technology has the potential to reduce construction costs by minimising material waste, labour requirements, and construction time. This trial project will offer insights into the economic advantages of 3D printing for similar construction initiatives.

The outcomes of this 3D printing trial will be carefully evaluated to determine the feasibility and effectiveness of the technology for other possible construction projects. Positive results may lead to broader applications in the region, potentially influencing future construction methods and practices. While there are no current plans for further 3D printed amenities, staff are extracting valuable insights from this project to assist in future decisions.

Council is committed to exploring and incorporating innovative construction technologies in future projects. The success of the 3D printing trial will inform the Council's approach to adopting similar technologies to enhance efficiency and cost-effectiveness in future construction initiatives.