They use cementitious materials with high compressive strength (80–100 MPa).
The "open time" (window where material is pumpable but stiff enough to support layers) is typically around 40–80 minutes. Download xtreee(18) txt
The term typically appears in academic literature and technical reports as a shorthand reference to one of the following: Download xtreee(18) txt
If you are looking for a specific or downloadable file related to XtreeE from 2018: Download xtreee(18) txt
Papers such as "3D Printing Using Concrete Extrusion: A Roadmap for Research" (Buswell et al., 2018) are available as PDFs or plain text abstracts on HAL Open Archive and ResearchGate .
Reproduction of natural coral reefs using 3D-printed concrete to support local ecosystems.