In the rapidly evolving world of construction technology, a groundbreaking study from the Manipal Institute of Technology is set to revolutionize the way we build infrastructure. Led by Shivashankarayya Hiremath, a researcher from the Department of Mechatronics at Manipal Academy of Higher Education, the study focuses on optimizing construction 3D printing (C3DP) through the development of a customized extrusion system. This innovation could significantly impact the energy sector by enabling more sustainable and cost-effective construction methods.
The research, published in the journal Scientific Reports, addresses a critical challenge in the construction industry: the need for efficient and sustainable building materials. Hiremath and his team developed an extrusion system comprising a hopper, auger, and interchangeable nozzles, designed to work with locally sourced, cost-effective cementitious composites. This system is a game-changer for the construction industry, particularly in regions where access to high-quality materials is limited.
One of the key findings of the study is the superior performance of the CSSAW mix, which includes cement, fine sand, fine soil, admixture, and water. This mix demonstrated exceptional printability, achieving a slump height of 27 centimeters after 30 minutes and maintaining structural integrity across 11 printed layers. “The CSSAW mix showed a 92.8% improvement in flowability and a threefold enhancement in shape retention compared to the baseline CSW mix,” Hiremath explained. This breakthrough could lead to more durable and sustainable buildings, reducing the environmental impact of construction projects.
The study also optimized printing parameters, including a speed of 25 millimeters per second and a layer height of 10 millimeters. These adjustments improved interlayer adhesion and surface quality, making the printed structures more robust and reliable. The use of a rectangular nozzle further enhanced deposition consistency and print stability, ensuring that the final product meets high-quality standards.
The implications of this research are far-reaching, particularly for the energy sector. As the demand for sustainable infrastructure grows, the ability to use locally sourced materials and cost-effective composites becomes increasingly important. “This technology has the potential to transform the way we build energy-efficient buildings and infrastructure,” Hiremath noted. “By reducing the need for expensive imported materials, we can lower construction costs and minimize environmental impact.”
The development of this customized extrusion system and the optimization of cementitious composites mark a significant step forward in the field of construction 3D printing. As the technology continues to evolve, we can expect to see more innovative solutions that address the challenges of sustainability and cost-effectiveness. The research published in Scientific Reports, which translates to “Scientific Reports” in English, sets a practical framework for deploying C3DP in real-world construction setups, paving the way for a more sustainable and efficient future in the energy sector.