Talk:California bearing ratio
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[edit] What it measures
At university (geotechnics course) we are told that this measures bearing capacity and that is related to stiffness and not mechanical strength directly... I propose changing that sentence in the intro. —Preceding unsigned comment added by Edwardando (talk • contribs) 01:59, 17 January 2008 (UTC)
[edit] Removed Text
I removed the "Origin of the CBR" below, it is unreferenced and is in conflict with the referenced claims in the article. It is also hard to beleive that American military engineers in WW2 developed and named a process called the CALIFORNIA BEARING RATIO (CBR). I believe that there was probably something similar to the CBR used as described below, so if someone could find references, for the claims and put it back in the article that would be great. Jeepday (talk) 13:48, 11 May 2007 (UTC)
[edit] Origin of the CBR
The CBR test was developed in World War 2 by american military engineers. As US forces captured pacific islands held by the Japenese new airfields were constructed hurriedly to bring american airpower closer to the main Japenese islands. The CBR test gave engineers instantaneous results allowing the amount of aggregate used in runway construction to be calculated to the minimum requirements, thus ensuring rapid construction. The rapid advancement of US airpower was one of the factors that lead to the surrender of the Japanese.
