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Building Homes or Extensions/cement settling
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Question
I have a concrete porch which has a slab extension of about 4' by 8' which is abiyt 4 inches thick set on a rock wall as a foundation on two sides of the slab extension. The slab extension has settled about 1 1/2 where the slab meets the existing porch. Can cement be poured over the slab extension to level it with the existing porch? The house I live in was built in the 1940's.
g, the proper thing to do would be to remove and replace. If you just want to get some usability from the situation, you can add concrete on top. It is very difficult to get new concrete to stick to old concrete. There are several topping cements that will work well if you do enough surface preparation.
Here is one I would recommend:
Mapei Planipatch
You can plan on several years even through freeze thaw cycles.
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Answers by Expert:
Dan Griffin
Expertise
I can answer almost all questions related to the total construction process. My expertise is in commercial construction, though I can field most any residential question. I have hands on experience in concrete, heavy equipment, masonry, all phases of carpentry, interior finishes, and I am fairly strong in mechanical and electrical.
Experience
I have over 20 years experience as a commercial carpenter and commercial construction superintendent. I have another 20 years experience in facility management for a major school district.
Organizations
My favorite hobby for he past 12 years has been singing bass in a The OkChorale men's barbershop chorus and the Mature Moments quartet.
Education/Credentials
I hold a Bachelor's degree in English and Math. I have completed many continuing education hours in the building trades. I hold a Master Carpenter card from the AGC, Associated General Contractors.
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