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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What kind of mortar should I use to point a fieldstone foundation?

What kind of mortar should I use to point a fieldstone foundation? The old mortar is crumbling, and sandy mortar is falling out onto the basement floor. I plan to remove the crumbling mortar (see ...
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5answers
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What actually happens if I vary proportions of cement and sand in mortar?

When preparing cement mortar proportions of sand and cement can AFAIK be varied. I've always been using the "default recommended" 1-to-3 (one volume of cement for every three volumes of sand) ...
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4answers
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Must I remove all mortar between tiles before grouting?

I'm just getting ready to lay down the grout after successfully tiling our master bathroom. I've been told in no uncertain terms that I must remove the spacers between tiles (or else grouting over ...
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2answers
620 views

Mount an LCD TV to 30 year old masonry fireplace

Power and HDMI are no issue. I'm worried about messing with the mortar. Any advice? Will this be an issue, more trouble than it's worth, etc? I have some alternatives. Leave my TV on the mantle or ...
7
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2answers
1k views

Should I fill eroded mortar in exterior brick?

There's a few bricks around my house about 40cm up from ground level where the vertical mortar between the bricks has completely fallen out / eroded away. In a few spots, there's insects going into ...
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1answer
498 views

What type of mortar should I use?

I'm going to replace these cracked bricks on the front of my home(see pic). What type of mortar should I use? Type S, N, or M? Is there a way to determine the type of mortar that was used when the ...
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0answers
36 views

Water on basement floor and attempting to fix with mortar?

I have waterproofed my basement completely for three sides (digging and using membrane and installing weeping tile), but for the remaining side which is a sidewalk, it would be too expensive to bust ...