Subject: Re: blocks and stress

From: [email-masked] (George A. Gleason)
Date: 24 Jul 1995 06:44:49 GMT

Re Hebel blocks:  When you say  "aerated" blocks, is that as in air-
entrained...?  I can't recall seeing aluminum oxide on any list of air-
entraining agents I'm familiar with... do you have any more info on the mix
design or its properties (ie. compressive strength, etc.)