What is OPC? OligomericProanthroCyanidin or something else? I always thought of this as a free radical scavenger to help us aged lose our wrinkles;)
Ron
I've never experinenced any problem with papercrete using OPC and no pozzolan, so I'm unclear how the lime content in it would be a problem. Have other people found problems when not using a pozzolan?
> - pozzolan is indicated and it is how the industry has dealt with these problems for 30 years - Good Question though - Thank you - Clyde T.
I thought most of us made papercrete ok without it.
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