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Old 03-20-2010, 10:51 PM   #1
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How to prevent cinder blocks from "popping out"


I noticed in my crawlspace that some of the cinder blocks have started to slightly pop out. This is an old enough house (1965). THe foundation overall is in good condition but I noticed that some of the blocks popped out a bit, and I know it's recent since there was a piece of mortar that fell out and landed on the ground which I had vacuumed.

While it's only maybe like a few mm, I'm wondering if this will get worse over time. Is there some preventative maintenance I could do to prevent it?

I was thinking of filling the blocks with cement, and even doing the basement portion, as I could do it from indoors, but how do I fill the last brick to the top (would have to drill holes to fill from the side of the brick)?

I will eventually add studs, insulation and drywall in the basement portion and possibly the crawlspace portion as well.

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Old 03-21-2010, 06:53 AM   #2
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How to prevent cinder blocks from "popping out"


If the mortar is disintegrating and blocks moving, that is not good. I would have a mason familiar with such things have a look-see. 1965 is not old in terms of foundations, but it should not be doing that.

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Old 03-21-2010, 07:07 PM   #3
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How to prevent cinder blocks from "popping out"


Figurd I'd post some pics for better judgement:

http://gal.redsquirrel.me/images/oth...m/dsc02985.JPG
http://gal.redsquirrel.me/images/oth...m/dsc02986.JPG
http://gal.redsquirrel.me/images/oth...m/dsc02987.JPG
http://gal.redsquirrel.me/images/oth...m/dsc02997.JPG

The rest of the walls: (these seem ok, next to no cracks, only hairline cracks here and there)
http://gal.redsquirrel.me/images/oth...m/dsc02988.JPG
http://gal.redsquirrel.me/images/oth...m/dsc02990.JPG

Crawlspace under garage: (this one is a little rough too)
http://gal.redsquirrel.me/images/oth...m/dsc02993.JPG
http://gal.redsquirrel.me/images/oth...m/dsc02996.JPG
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Old 03-21-2010, 08:46 PM   #4
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How to prevent cinder blocks from "popping out"


I would correct your moisture problem causing the stains on the walls. This excess moisture can cause settlement.

From you photos, I did not see any cinder block (actually concrete block) "popping out". I did see some monor cracks due to settlement of a minor footing problem near a corner. I doubt if these would have been recent. - The flash burns out some of the details.

Dick
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Old 03-21-2010, 09:11 PM   #5
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How to prevent cinder blocks from "popping out"


This pic shows it better:

http://gal.redsquirrel.me/images/oth...m/dsc02997.JPG

If you look at the bottom of the block it sticks out a bit.

I think the moisture problem has been corrected on the main crawlspace side. The house had no gutters, so the water was just pouring next to the house. I also want to regrade the lawn so it slopes more off the house, but it's not too bad.

The crawlspace under the garage is worse, and I have a feeling it's because there are no weeping tiles. I will have to dig and see. It used to actually be completely enclosed, so that damage may be from then. It probably got extremely humid in there and the moisture was trapped.
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