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  1. #1
    dan orourke's Avatar
    dan orourke Guest

    Default Cracks in garage slab

    Last edited by dan orourke; 01-02-2008 at 07:01 AM.
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  2. #2
    Join Date
    Mar 2007
    Location
    Houston, Texas
    Posts
    292

    Default Re: Cracks in garage slab

    In New construction the designing engineer should look at it if its anything more than RTS cracking...which this sounds like it is.

    A "repair" may not be justified as yet but the cause should be identified so that the probability of worsening can be assessed. Certanily not off to a good start!


  3. #3
    David Banks's Avatar
    David Banks Guest

    Default Re: Cracks in garage slab

    Not usually foundation company repair issue.If anything it would be SE. A lot of times they do not compact soil properly after being disturbed for foundation construction. It then can settle and get worse as Phil said.
    I have seen them settle enough that you could place another 4 inch slab on top of settled one.
    Look on the edges for the chalk line that was top of slab. Has slab settled below this line. Of course you have to verify slab was placed to this line, usually identified by concrete from slab.
    Is this a foundation with slab poured between walls or slab on grade/monolithic?


  4. #4
    Richard Rushing's Avatar
    Richard Rushing Guest

    Default Re: Cracks in garage slab

    RTS is Repeated Thermal Shock.

    Rich


  5. #5
    Join Date
    Mar 2007
    Location
    Houston, Texas
    Posts
    292

    Default Re: Cracks in garage slab

    Actually by RTS I meant "Resistance To Shrinkage". Also known as "curing cracks" or just "shrinkage cracks".

    I have not heard the term "Repeated Thermal Shock" before related to concrete cracks. Where did that come from Richard?





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