Wall capping blocks

[DIYspanner]

I have a 4' high two course perimeter wall, the top row being a single row, side on. Some of the top row have cracked and I'm considering making my own 1" high, maybe 2' long capping blocks to sit on the wall.

What would be a suitable mortar mix to make the blocks with?

 

[23vc]

Are you talking about casting your own? If so it’d be a concrete mix

 

[DIYspanner]

If so it’d be a concrete mix

What's the appropriate concrete mix for wall capping?
I presume small gravel is suitable aggregate?

 

[jj4091]

Is it really worth the hassle. I would have thought you would need rebar as well as concrete.

 

[freddiemercurystwin]

.

 

[23vc]

It’d probably not look great either, but if you did want to do it probably something like a 3:3:1 sharp sand some kind of small aggregate and cement. You’d need to make a decent formwork for it, and get air bubbles out etc. can’t think why you’d want to do it tbh

 

[freddiemercurystwin]

Logistics/time/effort/vibrating it etc aside I think there's been a few threads on this over the years, melamine lined with a bit of cooking oil would be good to use as a mould.

 

[noseall]

What's the appropriate concrete mix for wall capping?
I presume small gravel is suitable aggregate?

Without the proper skill set, drip edge and cast moulds, it will look like a pigs ear. You will regret it.

 

[DIYspanner]

So the solution is to replace the top row of bricks I presume?