Contec Australia builds multi-story home using 3D printing in record time

In Australia, Contec Australia has successfully completed the nation's first multi-story home constructed using 3D concrete printing technology. The project, known as the Tapping home, exemplifies a significant advancement in construction efficiency, as the structural walls were printed in just 18 hours of active machine time. This innovative approach addresses rising construction costs and labor shortages while promoting more sustainable building practices. The Tapping home demonstrates the potential of 3D concrete printing to revolutionize the housing market by providing a faster and more cost-effective alternative to traditional building methods. Contec's technology resulted in structural walls that are approximately three times stronger than standard brick walls, boasting a compressive strength of 50MPa compared to the 15MPa of typical masonry materials. This remarkable strength, combined with features such as fire-resistant and water-resistant properties, makes the Tapping home well-suited for areas prone to natural disasters like hurricanes and floods. Moreover, the project achieved a noteworthy 22% cost savings on structural walls, allowing developers and builders to consider more affordable options in an increasingly expensive housing market. The overall construction timeline for the entire build was completed in just five months, significantly reducing the time it takes to deliver new homes compared to conventional techniques. This advantage may foster a shift in the construction industry and encourage more builders to explore 3D printing as a viable method for meeting urgent housing demands. The success of the Tapping home could have far-reaching implications for American neighborhoods facing similar challenges, as U.S.-based builders like Icon have also been developing 3D printed homes. However, most current models in the U.S. involve a hybrid approach, combining 3D printing with traditional building materials for upper levels. Contec's achievement of 3D printing both stories using only advanced technology showcases a pioneering step towards fully utilizing 3D concrete printing for multi-story buildings. As interest in sustainable construction grows, innovations like the Tapping home could transform how communities think about housing development and construction standards.