CeNTI -
Building & Smart Spaces
DUST +

Innovative composites with powder incorporation resulting from limestone cutting sludge
The project DUST + aims to develop composites based on stone powder from the residual sludge that result from the processing of limestone, with the incorporation of hydraulic or polymeric binders. In the initial phase, a new sludge decanting system will be designed, allowing the replacement of flocculant products currently used by others of biological origin. At the same time, sludge treatment processes will be developed to ensure their compatibility with the binders. Subsequently, the compositions for the new composites will be defined, studying and experimentally optimizing the physical, mechanical performance, and durability of the resulting materials. Specific compositions will be developed to allow the application of the composites by 3D printing and/or projection. In parallel, new products will be designed and projected so they can be manufactured from these novel composites and interconnected with natural stone elements, such as reinforcement sublayers, decorative pieces, and urban furniture.
The new composites and products will be produced in industrial environment and subject to extensive validation of their functional and environmental performance, guaranteeing the pre-established requirements and the proposed innovation potential.

Main Goals/Activities
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Results
- Composite materials based on polymeric binders and incorporation of stone powder compatible with additive and subtractive manufacturing processes.
- 3D printing of the developed formulation for construction of stone reinforcement structures or decorative objects.
Project Number
POCI-01-0247-FEDER-47076Measure
PT2020 – SI I&DT Empresarial – CopromoçãoProject duration
January 2021 to June 2023Intervention Region
Centre and North of PortugalApproval date
27 April 2021Financial support EU
FEDER – 614 171.94 €Total Eligibel Cost
848 683.25 €