Pointing bricks in garage

MisterNick

I posted recently as i was having a floor laid in the garage and i had found a leak in the utility room that affected the wall between the garage and utility room.
Leak repaired and floor laid with no problems i am aware of.
The bottom rows of bricks, up to the area around where the leak was, have lost their pointing and I was going to repoint them with some Bostik Multi purpose mortar I have. However, I keep getting dust from the joints each time I brush them, despite vacuuming them out.
My questions are
1. Am I ok to give it one last brush and vacuum and then go ahead with the pointing?
2. Am I missing anything?

Previous thread here with pics.
https://forums.moneysavingexpert.com/discussion/comment/80995699#Comment_80995699

I'll post some current pics.

Many thanks 

MisterNick

Latest pictures from the garage side

MikeJXE

Wet the joint before applying new mortar 

MisterNick

MikeJXE said:

Wet the joint before applying new mortar 

Thanks Mike, wil do. Otherwise - just go ahead?

FreeBear

Looks like you have a lime mortar in there - Usual recommendation is to repoint like with like. But being inside a garage, you shouldn't have a problem with using cement.

Rake out the joints to around 20mm deep, give the area a good soaking and leave for an hour or two (you want the bricks damp, not dripping wet). Then repoint. Having damp bricks will stop the moisture in the new mortar from being sucked out and result in a better set.

MisterNick

FreeBear said:

Looks like you have a lime mortar in there - Usual recommendation is to repoint like with like. But being inside a garage, you shouldn't have a problem with using cement.

Rake out the joints to around 20mm deep, give the area a good soaking and leave for an hour or two (you want the bricks damp, not dripping wet). Then repoint. Having damp bricks will stop the moisture in the new mortar from being sucked out and result in a better set.

Thanks - I'll give it aa go