Wood wool cement board is a versatile building material made from wood wool (excelsior) and cement. The main characteristics are: fire resistance; wet and dry rot resistance; freeze-thaw resistance; termite and vermin resistance; thermal insulation and acoustic absorbance.
JUST A THOUGHT…….
What if we twisted a rope out of wood wool and cement powder, much like a twine, then used steam/water to activate the concrete as we lay out the composite rope using computer controlled placement? Rollers could be used to pull the rope into place as well as compressing the rope into a rectangular cross section, as opposed to round. Twisting the rope creates a tremendous amount of internal tension/compression.
One MAJOR drawback is trying to control moisture loss, so that the concrete can cure properly over time.
Think of this as a combination of the material simplicity of a mud and straw house brought together with the geometric complexity of a termite mound. I offer a few images from my first kick at the can….
The rope is light and surprisingly strong, yet very pliable before curing.