Since I’ve been immersed in working with natural binders on our earthbag-cellar journey I’ve been in awe of and thinking a lot about the natural binders lime and clay.
Yesterday this image of chalk under an electron microscope appeared in my twitter feed and took my breath away:
I then searched for and found this image of clay under an electron microscope:
The rich geomtery of these water-loving natural materials seems to explain their amazing binding qualities.
It seems that the lime particle (chalk) is approximately three times larger than the clay particle!
