Tech From Here: NL · Sources
A castle of concrete sandbags
The work this post covers and every source it draws on, each linked to the original.
The workSANDBAG CASTLE: The future of concrete is now (Yvonne Mak), on the Dutch Design Week 2026 programme ddw.nlOther sources
Images, slide by slide
- Slide 1
- A small castle of stacked gray sandbag shapes with a wooden door and red flags, on a floating platform in a pond beside a museum wallPhoto: Martijn HermansMuseum or journal record
- Slide 2
- Loop diagram: concrete builds flood defences, conventional cement and concrete production emits CO2, and that feeds the rising water we defend againstImage: RN Collins studio, code-drawn. Checked against Dutch Design Week press kit 2479, Sandbag Castle, Yvonne Mak (no figures given)
- Slide 3
- Diagram grouping the approaches named in the castle: binders such as calcined clay and geopolymers, recycled or dredged materials, CO2 use, reinforcement and additives, and self-healing concreteImage: RN Collins studio, code-drawn
- Slide 4
- Diagram side by side: bone repair in steps, from a blood clot to a callus to remodelled bone, and the two self-healing concrete products named in the castleImage: RN Collins studio, code-drawn. Checked against OpenStax Anatomy and Physiology 2e, 6.5 Fractures: Bone Repair; Dutch Design Week press kit 2479
- Ring frame
- Troffel gebruikt voor eerste steen van het gebouw der N.V. Arbeiderspers, Rijksmuseum (NG-1991-4-7)Frame: Rijksmuseum, PD, croppedMuseum or journal record