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GSBN: Digest for 6/19/02

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-> Re: Technical issues in China
     by Paul Lacinski paul@...


Date: 19 Jun 2002 22:33:51 -0500
From: Paul Lacinski paul@...
Subject: Re: Technical issues in China

Hi Bruce and all,

I wonder what fly ash actually does in concrete, and how similar its 
reaction with lime is to its reaction with cement.  Any ideas?  My 
experience was that the reaction between the lime and the fly ash was 
in no way a weakly pozzolanic one- the inch thick samples from last 
summer were very hard and strong, and well set all through.  They 
seemed in every way comparable to similar samples made with crushed 
brick.  But then, I won't pretend to know anything about the 
chemistry.  Any more ideas?



- -- 
Paul Lacinski
Amy Klippenstein
GreenSpace Collaborative
Sidehill Farm
PO Box 107
463 Main St.
Ashfield, MA 01330 USA


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