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My partner & I have a disagreement concerning back filling the inside of a crawl space foundation. The foundation in question is built with 8″ block and type S mortar is used for the joints. There are four courses of block. The back fill used is sand and is spread to about 4 inches throughout the crawl space. We recently back filled a foundation immediately after the mason completed the top course of his block work. The bottom courses had several hours to set up.
My partner argues that you must wait at least 24 hours before back-filling or the quality of the structure is ruined.
I agree that waiting is better, I simply do not agree that major damage will definitely occur to the structure if the back filling is done by hand and caution is used not to move any block.
Any insight would be greatly appreciated.
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Mike,
If 24 hrs. is erroring on the cautious side, what is the emergency that would cause you to fill sooner. I have a saying in my business " sex and flooring is not an emergency", and I would assume backfilling isn't either. But maybe you can expand on this.
*Greg,Generally, we try to wait at least 24 hours to back fill the crawl space. This most recent instance occurred due to a scheduling problem with our framer. The framer had a very small window of time available to frame our house. In order to have the foundation ready for framing; we needed to get the back filling completed as soon as possible. Thanks,Mike
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My partner & I have a disagreement concerning back filling the inside of a crawl space foundation. The foundation in question is built with 8" block and type S mortar is used for the joints. There are four courses of block. The back fill used is sand and is spread to about 4 inches throughout the crawl space. We recently back filled a foundation immediately after the mason completed the top course of his block work. The bottom courses had several hours to set up.
My partner argues that you must wait at least 24 hours before back-filling or the quality of the structure is ruined.
I agree that waiting is better, I simply do not agree that major damage will definitely occur to the structure if the back filling is done by hand and caution is used not to move any block.
Any insight would be greatly appreciated.