Share
I had some concrete done by a "professional" concreter and I was never happy with the Band-Aid fix he did to allow water to fall properly away. As he didn't do the fall properly, water was pooling in the center of this square bit of concrete in the picture
The water was supposed to fall in the direction of the arrow. To fix the problem he did a little cut deeper at the bottom and shallow at the top so the water falls.
It does work but looks awkward ( crap ). The problem is trivial so I didn't want to bother him about it but I would like to see if I can patch it up close enough so it doesn't look as bad and I can just drill a small hole or two for water to slowly drain
Can I fill this section with structural grout or would you just mix some cement again? and try fill it and smooth it off?
I can try to colour match it with a couple of test mixes just on some crap wood or something and record the closest match
The concrete quote had 1.8m3 of 25mpa charcoal coloured concrete. I know he used one bag of charcoal colour in 1.8m3 so would have to match the same ratio. I can ring the concrete supplier he bought it off and find out how much was one bag
Would this be the best method you think?
Afternoon @PatDIY_Dad
Small jobs can be a pain. I am unsure how the cut helps it drain unless the concrete section is concave?
I really dont know of a product that yyou could use that would work well and blend nicely.
Is that new section of concrete level with either side of the path?
As much as it hurts maybe remove it and redo would have a better overall effect.
Even trivial things become a pain 
If it bugs you I would be revisiting the person who did the job and letting them know.
If not then id be tempted to remove and replace as a pebble in your foot becomes a huge pain, having your path with an iritant can do the same. 😕
Dave
Hello @PatDIY_Dad
I agree with @Dave-1, it is very difficult to colour match concrete. It's more art than science especially if it involves coloured oxide. Another drawback to patching concrete is that it is very visible. Even if you got very close to the colour you were after, you would still be able to see where the patch occurred.
Using a tube type filler will cover the leak, but it becomes even more obvious. I recommend going with Dave-1's suggestion and that is to contact the trades person who did this and ask them to finish the job properly.
Otherwise, there is always the option of changing the whole thing.
Let me call on some of our experienced members @homeinmelbourne and @Nailbag for their recommendations.
If you need further assistance, please let us know.
Eric
