Thursday, July 2, 2009
Making clay firebricks.
My oldest son William has joined me making bricks. I have contracted out to him the job of making the firebricks for my wood heat boiler. He has done a pretty good job for a near 16 year old kid. Using only a shovel, wheelbarrow, mixer and hand mold, he has made me 60 of these so far.
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Refractory and fire clay mortar are often used to join fire brick together. Ordinary Portland cement mortar is also used, but common mortar cannot withstand extreme temperatures; as a result, many building codes require the use of refractory mortar.
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