> Looks fine to me. It is a concrete wall, not a piece of art. The colour will somewhat even out over time, but if you want it all the same colour, plan to paint it.
I agree, looks good to me. I'd also worry about the integrity of any skim coating fix you may try. Might end up with more...
I'm looking for some type of reference that supports producing a watertight construction joint by sandblasting or water jetting the surface of the first pour to 1)remove laitance, 2)provide roughness, and 3)enable the new pour to bond directly to the first pour's exposed aggregate.
My...
Here is a follow up to close out this thread.
Two sets of cores were drilled and tested. Average strengths were 4000 psi and 3600 psi and the lowest individual break was 3400 psi. Since the averages are greater than 85% of the specified strength and any one core does not fall below 75% we are...
Thanks for the replies.
First, I don't want to discuss whether or not the concrete needs to be removed. I appreciate all the comments on not being too hasty in removing concrete. I agree, but for this thread let's just assume there is no alternative.
Contractor is very experienced and we...
Assuming that coring confirms a low 28 day break, we are planning on removing a section of a concrete wall we are building. Wall is 18" wide and the section to be removed is 9'x30'. Section is defined by a construction joint along the bottom with steel reinforcement in the upper wall lap...
