Mortar is used between bricks, cinder blocks, or stone to bind them and fill any gaps. It is made from sand, a binding agent (cement or lime), and water.

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Can a problem with heater stack liner cause outside chimney mortar to crack and fall out

I had "high-efficiency" furnace installed in 2009. In 2011 chimney required full grind-out and repoint job, and chimney saver solution was applied to prevent water damage. Service lasted only 18 ...
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How long to wait after tile installation before placing heavy objects on it?

I just installed some 12" x 24" large format tiles in my laundry room using Flexbond mortar over concrete that was machined with a diamond cup disk. Its been ~32 hours since I finished the main ...
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replace one tile bathroom floor

18" tile part adjacent to toilet and under the flange cracked during toilet install (plumber). first try result: replacement tile is too high, i I had to remove it. Complication: tile rocks due to ...
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How can I match existing mortar?

I'm trying to find a good sand that matches the mortar that I have in our house right now. I live in Chicago. The house is 30+ years old and as I look at the existing mortar, I see that it has large ...
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How do I level a summerhouse concrete base that dips in the middle?

I laid a 4x3 metre concrete base for my summerhouse/office thing. The corners are all level and so the summerhouse sits fine, but it dips in between and so the load bearing battens aren't taking any ...
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Will I have any issues installing an in-floor heating mat with premix mortar?

I installed a radiant floor heating mat under ceramic tiles using a premix mortar. I now understand this was not the right thing to do. After further research the only reason I can find that suggests ...
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What maintenance does an 1890s brick-over-fieldstone foundation need?

I know that if when it comes time to repoint, I should get the current mortar analyzed to make sure its curing strength is compatible with the old bricks. I know that brick foundations in the time ...
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What would cause mortar to have a patchy finish?

I started a re-pointing project in my basement, but it was way more work than I had anticipated, so I haven't continued in about six months. However, now that i'm looking at mortar I originally ...
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What is a suitable mortar when repointing a wall made of soft red brick?

I am about to re-point the front of my Victorian (1895) house which has soft red bricks. Is a 4:1 ratio of sand to cement suitable? I have read that cement can force the moisture though the bricks ...