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Old August 30th, 2013, 07:02 AM   #1
grandcherokee
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Masons...brick layers question about Mortar and humidity

I am about to do Ledgestone all around a my front porch... I was wondering with this frickin high humidity is there anything special that I should add to my mix?

Tarpaper and mesh is up and I am at the scratchcoat stage ...also.will 12 hours be enough to set the scratchcoat before I start my stone?
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Last edited by grandcherokee; August 30th, 2013 at 07:43 AM. Reason: Spellin
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Old August 30th, 2013, 07:23 AM   #2
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Old August 30th, 2013, 09:08 AM   #3
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I know that the biggest similarity between a fat lady and a brick, is that sooner or later, they will both get laid by a Mexican. Does this help in any way?
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Old August 30th, 2013, 11:41 AM   #4
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I'm not a pro but have done a little work of my own. Concrete cures by hydration not "drying". The heat may speed up the process a little but the humidity may keep your mud "fresh" a little longer. If you've got to retemper your mud IIRC you can only do it once. Then toss the batch. I've done a LOT of block (think house basement and 28*48*12 shop all 10" block) but I've not done brick....yet.
Wondering with the stone if you have to wet it like your supposed to with brick. From what I recall reading before doing my projects block was fine to lay up dry but brick would suck too much moisture out of the mortar too quickly and it wouldn't set properly. A quick mist with a hose was recommended. I've no idea but thought I'd mention it.
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Old August 30th, 2013, 03:51 PM   #5
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Quote:
Originally Posted by welderboyjk View Post
I'm not a pro but have done a little work of my own. Concrete cures by hydration not "drying". The heat may speed up the process a little but the humidity may keep your mud "fresh" a little longer. If you've got to retemper your mud IIRC you can only do it once. Then toss the batch. I've done a LOT of block (think house basement and 28*48*12 shop all 10" block) but I've not done brick....yet.
Wondering with the stone if you have to wet it like your supposed to with brick. From what I recall reading before doing my projects block was fine to lay up dry but brick would suck too much moisture out of the mortar too quickly and it wouldn't set properly. A quick mist with a hose was recommended. I've no idea but thought I'd mention it.
This!

Slow cure is good! Do not add water & remix , bad news! Mix Small batches. We used to soak the stones/bricks in a wheelbarrow for 10-15 min. Try to eliminate as much of the air trapped behind/under as possible and keep your tool clean!
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Old August 30th, 2013, 03:53 PM   #6
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Quote:
Originally Posted by welderboyjk View Post
I'm not a pro but have done a little work of my own. Concrete cures by hydration not "drying". The heat may speed up the process a little but the humidity may keep your mud "fresh" a little longer. If you've got to retemper your mud IIRC you can only do it once. Then toss the batch. I've done a LOT of block (think house basement and 28*48*12 shop all 10" block) but I've not done brick....yet.
Wondering with the stone if you have to wet it like your supposed to with brick. From what I recall reading before doing my projects block was fine to lay up dry but brick would suck too much moisture out of the mortar too quickly and it wouldn't set properly. A quick mist with a hose was recommended. I've no idea but thought I'd mention it.
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Originally Posted by yyj87 View Post
This!

Slow cure is good! Do not add water & remix , bad news! Mix Small batches. We used to soak the stones/bricks in a wheelbarrow for 10-15 min. Try to eliminate as much of the air trapped behind/under as possible and keep your tool clean!
Spot on.
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Old August 30th, 2013, 03:55 PM   #7
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Spot on.
using your screen name as a guide, I would listen to you on this subject before anyone else
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Old August 30th, 2013, 06:32 PM   #8
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I'd never re-wet regular concrete but IIRC you could retemper mortar one time only. If your mixed batch is a little too big then stir it occasionally and it won't "set" quite so quick.
BTW I always found when mixing mortar when you think it's almost right but you need just a touch more water just mix a little more and it'll probably be spot on. But then again I mixed all mine by hand in a wheelbarrow with a hoe. My gosh WTH was I thinking???? Guess I was trying to save a buck by not having to rent a real mortar mixer LOL
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Old August 30th, 2013, 06:48 PM   #9
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Keep your tool clean!
Good advice for brick work or life in general.
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Old August 30th, 2013, 07:19 PM   #10
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My masons start at the top and work down when doing ledge or field stone to keep the stone below clean.
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Old August 30th, 2013, 09:04 PM   #11
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My masons start at the top and work down when doing ledge or field stone to keep the stone below clean.
Also..... to answer the original question.

Humidity= good

Heat = bad
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