what is the mix you are using? Also are you using different types of sand in the piece?The concrete appears to me to be crazing.I am wondering if you are using sands with different moisture seeding rates which could be causing the concrete to fracture like this. I am talking about the table that is cracking all over. By the way nice table!
Jason Eller said:
Josh, can you be more specific regarding temperature? I had a bench that got up to 136 degrees, at which point I pulled the blanket off and misted it with water. I noticed small cracking, not sure if that was the cause.
If you have any knowledge of what is happening chemically at that temperature, please share.