# Ribbed 3D-Printed Floor Systems Autodesk Research and Additive Tectonics Unveiled Selective Cement By Colin Smith | Written with AI assistance | Published 2026-03-03 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/selective-cement-activation References: [3dprinting](https://3dprinting.com/news/autodesk-research-and-additive-tectonics-develop-3d-printed-floor-system-with-alternative-materials/) Autodesk Research and Additive Tectonics introduced a 3D-printed floor system that combines permanent printed formwork with alternative materials, featuring econitWood upcycled wood-mineral formwork and a potassium-activated geopolymer mortar. The project used Selective Cement Activation (SCA), a particle-bed process that binds dry mineral powder in layers, designed and analyzed with Autodesk Inventor Nastran to optimize ribbed geometry. [Flax](https://www.trendhunter.com/trends/hybrid-flax-pavilion) fiber reinforcement replaced steel rebar, robotically wound along continuous paths inside the complex formwork to provide tensile strength while reducing weight. The system targeted wasteful single-use formwork, material overuse in flat slabs and embodied carbon from cement and steel, producing a lighter, stronger slab. For builders and designers this approach promises lower carbon footprints, reduced material waste and integrated service opportunities, aligning with broader trends in low-carbon, [additive construction methods](https://www.trendhunter.com/trends/Large-scale-printed-architecture). Image Credit: Additive Tectonics ## Trend Insights (Trend Hunter) - Score: 2.4/10 - Popularity: 3% | Activity: 3% | Freshness: 67% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America, Europe ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### What Makes This Trend Stand Out - **Selective Cement Activation:** A particle-bed binding process enabling layer-wise geopolymerization that could disrupt conventional cast-in-place concrete by decoupling formwork from structural material systems. - **Upcycled Wood-mineral Formwork:** Permanent econitWood formwork combining recycled wood and mineral binders that presents potential to replace single-use timber shuttering and lower embodied carbon in slabs. - **Flax Fiber Reinforcement:** Continuous robotically wound flax fibers substituting steel rebar offer the prospect of lighter, corrosion-resistant reinforcement systems with markedly reduced carbon intensity. ### Sectors Adopting This - **Commercial Construction:** Large-scale building projects may see floor systems optimized for material efficiency and lower lifecycle emissions through integrated printed formwork and geopolymer mortars. - **Prefabrication and Modular Building:** Offsite manufacturing workflows could integrate selective cement printing and upcycled formwork to produce lighter, transportable slab modules with embedded services. - **Sustainable Materials Manufacturing:** Producers of binders and reinforcement fibers face opportunities to develop standardized geopolymer mixes and bio-based composite reinforcements tailored for additive construction processes. ## Related on Trend Hunter - [3D-Printed Floor Lamps](https://www.trendhunter.com/trends/her-floor-lamp.md) - [Corn-Made 3D-Printed Buildings](https://www.trendhunter.com/trends/manufactura-corncretl.md) - [3D-Printed Tall Concrete Towers](https://www.trendhunter.com/trends/the-tor-alva.md) - [Compact 3d-Printed Housing](https://www.trendhunter.com/trends/tiny-house-lux.md) - [Personalized 3D Print Styles](https://www.trendhunter.com/trends/mechstyle.md) - [Organic Urban Playgrounds](https://www.trendhunter.com/trends/the-boulder-park.md) - [Underwater Concrete Printing Systems](https://www.trendhunter.com/trends/darpa-1.md) - [Adaptable 3D Printing Resins](https://www.trendhunter.com/trends/3dprinting-resin.md) - [Architecturally Inspired Exhibition Displays](https://www.trendhunter.com/trends/exhibition-display.md)