Cob: Re: Earthquake.

[Robert Bolman]

>>>>>>>>WRT cement - I'm given to understand it is nearly as old as cob -
>>>>>>>>that the first recorded use was by the early Romans, somewhere
around
>>>>>>>>100 BCE or 100CE.

That may be true, but it's still a very energy intensive product that is
used in such vast quantities the world over that it accounts for 4 - 5
percent of the world's greenhouse gases.  Portland cement is a major
environmental problem in and of itself.  So the purist cob enthusiasts are
to be commended on their refusal to use it, but in many cases, a small
amount of cement could make a big difference in terms of a building's safety
in earthquakes.

Rob