cold joints in retaining wall heel slab
cold joints in retaining wall heel slab
(OP)
Question:
I have another concrete cold joint problem. This one is on the cantilever retaining wall heel slab. The base slab is design for 24" thick. Cold joint is at 10" from ground. My gut feeling is we need to do something. Can somebody tell me what are the remediations other than saw-cutting and replacing it? What about pressure-injetting epoxy to fill up the voids at the cold joint? Please advise. Many thanks.
I have another concrete cold joint problem. This one is on the cantilever retaining wall heel slab. The base slab is design for 24" thick. Cold joint is at 10" from ground. My gut feeling is we need to do something. Can somebody tell me what are the remediations other than saw-cutting and replacing it? What about pressure-injetting epoxy to fill up the voids at the cold joint? Please advise. Many thanks.






RE: cold joints in retaining wall heel slab
Have you taken any core samples and tested them to see if they fail along the cold joint plane?
RE: cold joints in retaining wall heel slab
RE: cold joints in retaining wall heel slab
Longhornse
Have you done an ultra sound test to determine the extent of the voids with in the heel?
RE: cold joints in retaining wall heel slab
No, we haven't. I don't think we have any intention of doing that. Do you think it will help? When the core broke halfway, I was almost certain that it was due to the cold joint. An ultra sound test may not be able to tell me a lot. It would if there is honeycombing in the slab. Please correct me if I am wrong. Thanks.
RE: cold joints in retaining wall heel slab
RE: cold joints in retaining wall heel slab
Have you rechecked the design assuming it to be just 10' thick heel.
Injecting epoxy, can you be sure it will work?
RE: cold joints in retaining wall heel slab
Keano1 may have hit on some thing at looking at the design again, but see how the 14' section reacts in the design rather than the 10'.