[Strawbale] Rlimestone screenings

[Derek Roff]

> I don't know what kind of stone you have in Nova Scotia but if it's
> limestone (as it is here in Ottawa) compacted limestone screenings
> does   result in a concrete-like material as it sucks up CO2 from the
> atmosphere   and turns back into a monolithic-like mass.

Tell me more about limestone screenings.  Is this fragments of 
limestone, crushed and/or graded?  In any case, what is the chemical 
reaction that allows it to suck up CO2 from the atmosphere?

Derelict

(Allegedly from a chemistry exam:  H2O is the chemical formula for hot 
water.  CO2 is the formula for cold water.)

Derek Roff
Language Learning Center
Ortega Hall 129, MSC03-2100
University of New Mexico
Albuquerque, NM 87131-0001
505/277-7368, fax 505/277-3885
Internet: derek at unm.edu