I have a picture somewhere of a pour like that in San Diego, about a dozen concrete pumps where on all 4 sides pouring simultaneously.
CH3NO2
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21,000 Cubic Yards......
http://www.prweb.com/releases/2013/12/prweb11444141.htm
We poured 4100 cy one day on the CAP Reach 1 - Parker to Bouse. Every day was 3000 plus.
This was machine lining, 4" thick, several miles each day.
CH3NO2