Askrant is an experimental composite material made entirely from daily waste.

  • Pellet ash (a byproduct of biomass heating systems), acts as a mineral filler.

  • Newspaper pulp (cellulose fiber), reinforces and binds the structure.

An ash-acrylic coating (a mixture of ash, water, and acrylic paint) forms a matte, mineral surface that can be pigmented, engraved, or sculpted.

Properties

  • Uses post-combustion pellet ash as a mineral filler, giving body and texture to the material.

  • Reinforced with cellulose fibers from old newspapers, providing strength and structural cohesion.

  • Fire resistant due to its pre-combusted mineral filling.

  • Composed entirely of common daily waste, with no need for virgin raw materials.

  • Produced at room temperature, requiring no heat, curing ovens, or energy-intensive processes.

  • Formed from low-density materials, including porous newspaper pulp and fine ash, resulting in a lightweight and airy structure once dried.

  • Fully air-dries without chemical setting reactions, reducing retained moisture and simplifying production.

  • 100% recyclable by rehydrating and adding fresh ash or fiber, creating a continuous reuse in a circular process.

Physical perfomance

  • Lightweight and low-density
    Final dry density ranges from approximately 300–700 kg/m³, significantly lower than conventional concrete (~2,400 kg/m³). This is due to the absence of heavy aggregates and the inclusion of air pockets within the fiber-ash matrix.

  • Thermal and acoustic properties
    The ash content offers thermal insulation, while the fibrous cellulose matrix contributes to sound absorption potential, making it suitable for interior panels or acoustic elements.

  • Dimensional stability
    The composite mantains its shape without warping under normal indoor humidity levels, even during the drying process.

  • Water permeability
    Its fibrous and porous structure enables rapid water drainage, supporting soil permeability, hydrological integration, and applications in flood-resilient design.

  • Biofriendly
    In outdoor environments, Askrant can function as a natural planter. Its porous, mineral-rich surface fosters the growth of microorganisms and lichens, supporting small-scale biodiversity.

  • Additive Manufacturing Potential
    The material can be explored for 3D printing, enabling customized, scalable, and decentralized production using low-tech or modified extrusion systems.

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samples