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Blog : Wednesday Precast class

Posted by margiek on 2010/10/13 14:00:00 (787 reads)

Precast class, day 3: Jeff has the students in the classroom today, going over their mix calculators and formulas...

The end of the Precast class approaches! Students have been in the classroom all day, going over the science behind the mixes and formulas, and treatments, etc. It's amazing how much can be learned in just three days!

In a while we'll go out to the workshop and take a look at the pieces that were cast yesterday. They are not done curing yet, but they have hardened to the point where they can be installed in the mock kitchens, for the purposes of the demo. The students will be able to see what their hard work accomplished! And they'll get to experience the joys of hauling a 300 lb top around, and manhandling it into place--without damaging the property it's being installed into!

TIP I LEARNED: 2-3 days is fine for curing the average job. 7 days is a luxury, not a necessity. Be sure to monitor the moisture, and make sure it cures evenly. No leaving it flat on the casting table, make sure to at least prop it up several inches, so the whole piece stays evenly moist and cures at the same rate.

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