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| Joined: | Wed Apr 10th, 2013 |
| Location: | Unanderra, Australia |
| Posts: | 1098 |
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I can understand the brickwork breaking down. Depending on its mineral make-up, one of the things I can remember from my metallurgy training was volume changes in refractory materials with temperature, both on the way up and when cooling off - with about a 10% volume change on the way down.
That's one of the reasons you can't stop things like blast furnaces and coke ovens batteries in the steel industry - the brickwork falls to bits when they cool off.
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Regards,
John Garaty
Unanderra in oz
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