Thursday, September 9, 2010

Sept 7: High Mass Storage Compaction Completed

After 36 yards (3 dump trucks) of sand were delivered from a nearby construction site, Todd cancelled the remaining deliveries because we were getting too much organic matter (tree roots) and large rocks (6" to 10" in diameter) mixed in with the sand.  After spending the afternoon removing roots and rocks from the sand by hand, we decided to place an order from a reputable establishment that used a sieve to grade their sand to industry standards.  Todd says that the remaining deliveries of sand were perfect, and the compaction proceeded smoothly.  The last 6" lift was compacted 3/4 minus crushed gravel, which is intended to keep the sand from drawing the water out of the concrete that will be poured directly over the compacted gravel surface to form the finished floor slab.



1 comment:

  1. Lotte and John,
    Though I'm rather in the dark about the project as a whole, this sounds great, and exciting, and creative, and lots of work. I send good wishes!
    Krista

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