Hi I live i Massachusetts.tough winters!
My home has an older set of concrete steps (3 steps).I have done some repairs on them over the years..I genarally use "Quickqrete" fast setting cement sold in dry powder form ( sold in a pail),you mix yourself.Recently a chunck of one of the corners broke off,appox 6".I would like any tips for a stronger repairTthis cement is easy to use,and hardens quick,but I seem to have mixed results?Any tips Thanks

 

If you could post pictures it would help us see what you are seeing. http://www.doityourself.com/forum/el...rt-images.html

 

I do not have a way to post a pic. a corner has broken off appox 6"x6"
Any tips for a stronger repair? thanks

 

Sink some rebar into the existing step to attach your patch?

 

Rebar, tapcons, most anything that can be driven or epoxied in, then build a form and make a pour. Not gonna be permanent as most any pressure could break it off again, requiring step replacement.

 

6 x 6 x ? sometimes we use short pieces of s/s all-thread driven into drilled holes

 

I think a better-performing product for your application would be Quikrete 5000. It comes in a paper sack, so you have to furnish a bucket or wheelbarrow to mix it in. Your patch will last longer if you delineate the edges with slightly-inclined (from the plane of the saw blade) sawcuts, and chip out all of the material inside of the sawcuts. Doing so creates a wedge-effect, with the existing concrete holding the patch material in place. Also, squaring off the patch area with the sawcuts to form a square or rectangle will provide more mass than a triangular patch will have, avoiding the pointed corners, and also more likely to remain in place over time.