concrete at foundation needs attention; what material(s) to use?

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Old 07-01-17, 10:53 PM
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concrete at foundation needs attention; what material(s) to use?

I removed a section of brick facade from the front of my house.
Removing the bottom course exposed a few problems. I can see into the hollow of the block below through one of the holes in the concrete.
There is around a 1/4" crack between blocks. The facing of some of the block is worn and pitted.
The thin concrete or mortar covering the block below is cracked and crumbling.

What is the best material to use for these various problems; mortar, hydraulic cement, polyurethane sealant?

Here are a couple of pictures of the situation:
Name:  Hole-In-Concrete.jpg
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Name:  Crack-Between-Block.jpg
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Thanks in advance.
 
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Old 07-02-17, 07:37 AM
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Whatever is crumbling & loose has to be removed first. Hydraulic cement might be ok to fill a crack but anything more than that, use type N mortar mix or Portland mixed with sand. Ace has a ready mix.
 
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Old 07-02-17, 09:01 AM
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Thanks @ShortyLong.

For the flat, horizontal, surface that needs to be replaced, would it make sense to lay some screening over the block before spreading the mortar over it? I'm thinking that, without something to stop it, the mortar will just pour into the hollow of the block.
 
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Old 07-02-17, 05:14 PM
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There are times when a mesh is used. I don't think that this is one of them. However, wait until you remove all the loose pieces before you make any decisions. That has to be done no matter what. There used to be some really good cement guys here. I don't know what happened to them.
 
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