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 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 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 ...