We're building a hot tank (380F design/300F op) in the place where a similar tank once was. The service is asphalt. Multiple hot tanks in our complex, from sulfur to asphalt, have pipe vents radially through the tank ringwall foundation. None of the Civil guys can tell me much about why they are needed. If anything, they think the vents would aid in further dessicating the clay/silt soil and cause additional settling.
I was wondering if anyone had experience with hot service foundations for storage tanks and if you used vents and why.
Thanks in advance for any replies.
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