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Old 01-21-2009, 02:46 PM   #16
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Mixing Mortar for Tuckpointing


but someone told me that the cement i got (can't remember the brand but it is Type N) already has lime mixed in it ... what gives ?

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Old 01-21-2009, 03:40 PM   #17
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Mixing Mortar for Tuckpointing


If it says, "Type N Masonry Cement", it contains no lime. If it says, "Type N blended portland cement/lime", then it has lime in it. If it has sand in it, same thing, except it will be called mortar.
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Old 01-21-2009, 03:52 PM   #18
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Mixing Mortar for Tuckpointing


okay, thanks. one more question: since tuckpointing is definitely messy, what do you use to clean up mortar smeared around on brick ? i wiped off with a damp sponge but some thin trace of residue still remained after it dried. is there some solution that will wipe it clean, vinegar or something ?
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Old 01-21-2009, 04:23 PM   #19
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Mixing Mortar for Tuckpointing


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Originally Posted by amakarevic View Post
okay, thanks. one more question: since tuckpointing is definitely messy, what do you use to clean up mortar smeared around on brick ? i wiped off with a damp sponge but some thin trace of residue still remained after it dried. is there some solution that will wipe it clean, vinegar or something ?
Clean with water and TSP, if you have stubborn areas use water and 10% muriatic acid.
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Old 01-21-2009, 04:31 PM   #20
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Clean with water and TSP, if you have stubborn areas use water and 10% muriatic acid.
Trisodium phosphate ? is there a commercial name for muriatic acid ?
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Old 01-21-2009, 04:37 PM   #21
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Mixing Mortar for Tuckpointing


no that is it, Home Depot will have it as well as any masonry supply store. Add a little household detergent with the TSP also.
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Old 01-21-2009, 04:39 PM   #22
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Mixing Mortar for Tuckpointing


thanks bob. i called a non-HD construction store in the area and the guy said they had WASHED SAND. he said that would do for custom mortar applications. is that right ?
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Old 01-21-2009, 04:57 PM   #23
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Mixing Mortar for Tuckpointing


TSP is no longer available. The best way to get the mortar off is to not get it on there. I gave you instructions earlier on how not to smear it, didn't I?
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Old 01-21-2009, 05:02 PM   #24
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Mixing Mortar for Tuckpointing


Re the sand, they probably have washed concrete sand, see if it complies with ASTM C144. Concrete sand has too many coarse particles.
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Old 01-21-2009, 05:08 PM   #25
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TSP is no longer available. The best way to get the mortar off is to not get it on there. I gave you instructions earlier on how not to smear it, didn't I?
this is what you said:

"From a hawk, just tuck the joints and leave it alone! Any mortar on the bricks will not be a problem unless you smear it in while wet. Let the bricks suck the moisture out of it for awhile, hit the joints with a jointer, then lightly wire brush them. No mess at all."

didn't work for me. i smeared it all over the place while tucking. i guess that fits in the scenario "unless you smear it in while wet". how can you smear it other than wet ? i guess i am sloppy. but even if i leave it on to harden and later chip it off, the brick absorbs the gray water from the mortar, which remains on the brick. i am sure you know what i am talking about. that is what i am trying to take off. i am sure it is a fairly frequent scenario as most people who do it are imperfect like myself and do leave some mess behind.
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Old 01-21-2009, 05:11 PM   #26
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Mixing Mortar for Tuckpointing


You are playing with it too much. Push it in, leave it alone.
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Old 01-21-2009, 05:15 PM   #27
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Mixing Mortar for Tuckpointing


Quote:
Originally Posted by amakarevic View Post
this is what you said:

"From a hawk, just tuck the joints and leave it alone! Any mortar on the bricks will not be a problem unless you smear it in while wet. Let the bricks suck the moisture out of it for awhile, hit the joints with a jointer, then lightly wire brush them. No mess at all."

didn't work for me. i smeared it all over the place while tucking. i guess that fits in the scenario "unless you smear it in while wet". how can you smear it other than wet ? i guess i am sloppy. but even if i leave it on to harden and later chip it off, the brick absorbs the gray water from the mortar, which remains on the brick. i am sure you know what i am talking about. that is what i am trying to take off. i am sure it is a fairly frequent scenario as most people who do it are imperfect like myself and do leave some mess behind.
Check a real site where a pro is doing brick work. We always wash the wall down a week after the joints are done. Use a commerical cleaner and a power washer, so for the DIYer I did not give that advise. But not cleaning? REALLY?
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Old 01-21-2009, 05:17 PM   #28
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Mixing Mortar for Tuckpointing


i can't pressure wash, it is an indoor application. i need some chemical to rinse it off. if TSP is not available (is it toxic ?), i might have to go with muriatic acid.
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Old 01-21-2009, 05:19 PM   #29
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Mixing Mortar for Tuckpointing


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Originally Posted by Tscarborough View Post
Re the sand, they probably have washed concrete sand, see if it complies with ASTM C144. Concrete sand has too many coarse particles.
No this is not a good sand either. Home Depot will not be able to help. Go to a sand & gravel Yard. But why7 are you mixing your own anyway. Normally we only do this for larger volumes. Just use the mixed bags of stuff. But not from Home depot either.

TSP does still exist. Find it at any paint store.

Cleaning is always done by professionals.. so clean and do not worry about it. We use a pointing tool to make the joints clean, but the way posted is just fine. If you made a mess it was from adding too much water to the mix. Very bad... plan on fixing it in the spring, since it will start falling out by then.
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Old 01-21-2009, 05:31 PM   #30
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Mixing Mortar for Tuckpointing


Power washing especially with acidic cleaners is not recommended. That said, it is often done, and if done with a fan tip is not usually a problem.

TSP is not available in pure form in this area, paint stores or not.

ASTM C-144 is the standard for masonry sand.

I never have to clean after tuckpointing, beyond the wire and soft brush.

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