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Question DetailsAsked on 4/1/2020

Long horizontal crack with sheering on four walls of basement, at top of bottom cinder block 6-8” from floor walls

My engineer recommended exterior waterproofing with #5 rebar inserted into walls then fill with grout. Three basement contractors say it won’t work to strengthen walls. They suggest either wire mesh or steel beams instead. One contractor says waterproofing is all I need because of drop in pressure if filling with stones instead of soil. The sheering is 6-8” between bottom two cinderblocks and from 15-25 feet across on each wall. Walls bow in from less than 1/2 to 1 1/2’. Wall is made of 12” cinder blocks from floor to about 4.5 ft then there is a four inch ledge. Top 3 feet is 8” cinder blocks. Outside is brick. One wall is tilting inward, noticeably from outside. What is the best type of repair: beams inside, insertion of rods, carbon mesh or other to go along with exterior waterproofing. Or is guy with 40 years in concrete right that waterproofing is all I need?

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The cracks are not 6-8 inches, the are 6-8" up from floor surface.

Answered 7 months ago by Thebigquestion




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