Quote Originally Posted by peteeng View Post
Hi Thomas - I think testing in opposite directions is a good idea. What is the biggest size of aggregate? Add stress to the spreadsheet so you have an estimate of breaking. Peter

Specific Beam Loading Case: Simply Supported: Center Load (efunda.com)
The biggest size is 4mm in the Silimix282...if this works out fine, i think i'll cast a couple more, but with some larger aggregates in...

I'm not sure if i can calculate anything that will tell me the breaking point of the EG?