Concrete is composed of cement, aggregate (including crushed rock and sand) and water. In homes, it's frequently seen in the foundation, driveway, sidewalk, patio, and stone walls. Note that bricks use mortar in the joints, not concrete.

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Can I build a deck this low to the ground?

I want to build a deck off the back of my house. The door is near grade level, about 1' above. The grade doesn't have very large slope, so that means that the beam at the far end would be below grade: ...
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How to add on to a concrete patio?

I would like to add on to my existing concrete patio with more concrete. I will about double the size of the patio. My question is, should I have the new patio free floating from the existing or ...
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Extending concrete Slab

I have a 10 x 10 slab (4 inches thick) that is already in my back yard in the corner. I bought a kit to build a 10 x 10 shed on it, and then realized that would put it right up to my fence. So my ...
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How do I know when concrete needs replacing rather than just mud-jacking?

I have a concrete driveway and path to my front door. Much of it has become unlevel and I'm contemplating having it mud-jacked. However, before I do, I wanted to know how I could easily tell when a ...
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How do I hang a chair from a concrete ceiling from a single hook?

I'm putting in a "hanging chair" in the basement and it's supposed to hang from a single hook in the ceiling. The ceiling is reinforced concrete. Now, I'm about 125 kilograms (275 lbs) so I reckon ...
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How to repair cracks in concrete overhang over entrance

I have a slab of concrete over the front entrance of my house with some serious cracks in it. I don't actually know what the proper name for it is, which makes this difficult to Google - so I've ...
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Building on top of 3/4'' plywood subfloor

I want to build this: http://www.mrmoneymustache.com/2012/12/21/how-to-make-a-relatively-sweet-shower-cheap/ and I'm building in my basement bathroom: on top of the foundation I have 2x4 (horizontal) ...
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Do I really need to use primer when painting an unfinished concrete floor?

I'm turning a one car garage into an office and want to paint the floor. I bought some Behr concrete paint, and the guy at Home Depot insisted that I have to put down a layer of primer first. Do I ...
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How to mount hooks into concrete ceiling that must be able to support several times bodyweight?

I am on the top floor of a loft apartment that used to be a factory. I want to install several hooks or some other fixture into my concrete ceiling from which I can hang gymnastic rings, a punching ...
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What is involved in enlarging a concrete garage door opening?

I have a concrete garage with an opening measuring 99" wide by 85" high. There is 10" of concrete from the door opening to the left and right walls and about 1' above. All walls are 8" thick and ...
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Concrete slab at a brick wall

I want to build a concrete slab (upon which a deck will be build later) at the foot of a brick wall (by foot I don't mean the foundation foot, I just mean where the brick meets the grade level). I ...
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How do I fill in around waste pipes?

Broke the concrete in my basement to run new pipes for the basement bathroom. The plumber put sand under the pipes to support them at the correct angle. I asked him not to glue the vertical sections ...
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How can I level my basement floor, which has a 4-inch dip?

I googled today on how to level a basement floor. Most people recommend using SLC (self leveling concrete)... I don't think I can just use that because of the pitch of my floor (and from what I hear, ...
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What should I do about a crack in the concrete slab in my living room?

We purchased the house about 2 years ago. The house is about 50 years old. Today we removed the carpet and the hardwood floors under the carpet. We found out the slab has an approximately 10ft long ...
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Is it possible to patch concrete stairs?

At my church, there is an old set of stairs made of concrete. They've begun to crumble on the top to the point where the treads are no longer flat and smooth. I've not seen any material that has ...
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When would I use epoxy anchors?

Epoxy anchor is essentially a metal alloy rod set onto epoxy. A hole is drilled and cleaned, then epoxy is put into the hole and the rod is inserted into the hole and left until epoxy sets. Using ...
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methods of detecting a copper pipe in concrete floor

We believe that our copper water line is embedded in the concrete (and rebar) basement floor. We would like to excavate a hole to install a sump pump. We don't want to hit the copper line which we ...
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Building a raised wall for a pond

We are looking to build a small pond (9'x18'x6'), but we want the edge to be raised up about 8". I am thinking about using CMUs (Concrete Masonry Units) which are 8x8x16. The entire pond will be lined ...
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What is the best way to remove and prevent leaf stains on concrete pavers?

We have a brand new paver stone walkway/patio. To my dismay, I noticed that their were leaf and acorn stains from the oak tree in the front yard. I've learned my lesson and I'm going to try to keep ...
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Are there any advantages to using metal post spikes set in concrete when building a privacy fence?

My neighbor and I are considering alternatives to wood-in-concrete fence posts for a privacy fence that can have significant wind load in an area that gets up to -30 degree frosts in winter. The ...
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how do i get rust stains off driveway

I used fertilizer with iron and, unfortunately, didn't sweep adequately afterwards. Afterwards I ran my sprinklers and now my driveway and sidewalk are peppered with unsightly rust stains. What are ...