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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New Basement Floor, house not framed yet

We are building a new house with an exposed basement. I had the floors poured a week ago while still warm in December. We have not framed the house up yet, meaning no deck, walls, roof, or HEAT. My ...
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Is permeable concrete suitable for a houses foundations?

I'm curious if using permeable or pervious concrete for all or part of a houses foundations would provide excellent flood protection? Would it be strong enough to support a house and if not could it ...
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How can I replace laminate with polished concrete flooring?

I'd like to investigate whether I can replace my first-level flooring - currently faux-wood laminate - with polished concrete. What do I need to know? Is it even practical to put down polished ...
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Failing foundation outside wall looks like it is buckling but it's not

My contractor poured a grey beam on the outside of the failing wall but it over time made it worse. I was wondering if I make a 3 plate beam out of 2 by 10 approx 20 feet long put it on the inside on ...
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51 views

Good, affordable pathway materials for sidewalk with tree root problems

I recently moved into my first home. Unfortunately, the concrete slab pathway leading from the town sidewalk to the front door is buckling from the roots of an enormous pine tree that grows near it. ...
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Load Bearing or Not How Can I Know For Sure

We have an unusual 3 inch thick poured concrete floor in a steel mesh in the ground floor of our house, under this is a basement like area with an old riveted steel across half of it and a couple of ...
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63 views

Can I use mortar to fill channels in a concrete floor?

I recently had central heating installed in my 2 bedroom ground floor maisonette. We installed all the pipes in the channels which we dug in the concrete floor. I have covered all the pipes with ...
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59 views

How to mount handrail to drywall over concrete

Any help how to hang the railing back up on the stairway. It is townhouse wall with drywall and concrete behind it.
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77 views

How can I achieve a Quartz look using concrete for a bar top?

I want to make my own concrete bar top but I would like it to have a bit of a sparkle like quartz has. Any suggestions?
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535 views

How to cut concrete block with a circular saw

I have some concrete blocks that are 4 inches by 6 inches. I need to cut them in half at a 45 degree angle. Can I do this with a circular saw and a masonry blade ? I would also make a jig to cut ...
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48 views

What is a suitable mold material for a concrete bar top?

I would like to make an L-shaped concrete bar top (single piece). However, I want to make the corner have a large curve (12-15" radius?). How can I create a mold to accomplish this? What materials ...
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Can a seat wall and fire pit be built on existing pavers patio?

I have an existing circular area in my uncovered paver patio area. I would like to have two curved seat walls, either stucco or stone veneer with flag stone or cement seats and no back, and a fire pit ...
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80 views

Bathtub Drain Leak near Concrete

After recently moving into a home (built in the mid 90's and apparently went through a remodel at some point), the guest bathroom tub started leaking. I noticed the leak in the room on the opposite ...
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How should I install flooring over fresh concrete?

I have fresh concrete poured in my basement. Planing to use Metrofloor Engage Select vinyl plank for most of the floor. Contemplating ceramic tile for the bathroom if vinyl is not good enough for that....
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59 views

Wall leaks due to rotten wood in footer!

My home was built in 1979, and I have a small leak in the basement. It appears to me that the water is coming from a piece of 1x4 that is embedded in the footer, presumably this wood goes all the way ...
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1answer
254 views

Cleaning indoor concrete floor without damaging it

I just finished helping a colleague clean out his (large) garage at his new house. He's gradually converting it to a indoor gym for himself and his kids (ie: indoor swing set, toys, etc, with a small ...
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1answer
545 views

Installing a strong-tie post anchor on unlevel concrete

I'm building a short (3.5 ft) fence in my front yard. I have most of the posts sunk in dirt holes, but two of them will need to be mounted on a concrete slab. The problem is that the slab has a ...
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Mount wooden post onto uneven concrete [duplicate]

Hi I'm wanting to mount a 112x112x3000 post onto a concrete slab. I have purchased L shaped brackets to do the job. Because the post will sit at the edge of the concrete I can install at most three ...
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Hanging picture on a very hard concrete wall

Situation: Appartment in a panel building. Very hard concrete walls -- all, thick or thin. No plastic hooks (like these on alibaba that usually work for people around do not work for me, the little ...
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81 views

Concrete Floor for 400 Gallon Water Tank

I am planning to build a concrete slab on a soil surface to hold a 400 gallon water tank (Shown Below). I want to make it 7' x 7'. It should hold about 3,500 lbs. Would I need to put in rebar? I've ...
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65 views

What material provides semi-permanent, strong bonding with a concrete floor?

The professionals doing repairs at a workplace seem to be capable of patching stairs with material so tough, and make it stick to the existing cement with such strength, that the patching survives ...
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8k views

How to level a section of raised concrete floor?

I had a plumber move a toilet drain on cement slab. The new concrete he poured is about 1/8" higher than the rest of the floor. I need the floor to be level for tile installation. The new concrete is ...
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141 views

How to run wire through steel garage floor system

We are building a carriage house, with a 4 car garage and a basement underneath. The basement has steel I-beams and the metal b-decking that the garage floor is poured on top of as a ceiling. What ...
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1answer
392 views

Remove paint from concrete floor (indoors)

I'm trying to find a solution to prep my concrete floors (slab) for tile. A contractor I had hired to remodel my home did an outstanding painting job -- so well that he managed to cover most of my ...
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Why are there metal tabs protruding from my poured concrete foundation walls?

What are these metal things sticking out from my basement walls? Can they be removed? If so, how?
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391 views

how much weight a specific sized concrete slab can carry?

Say I have a portion of 10x10 feets. I need to put a concrete slab for that. The thickness of the slab will go 4 inches. Is there a way to tell, how much weight this slab can carry?
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Is it ok to use pneumatic tools underwater

I have a concrete that is stuck underwater. The concrete piece is too heavy. I think that I could break it into small pieces with my pneumatic impact drill.
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123 views

How long does concrete dust take to settle

I'm getting some wiring done and having the electrician chase the new wires. The walls are concrete so I know that this is going to make a huge mess and need serious work after the electrical stuff is ...
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Concrete question(s) about garage

I'm in a new to me house and have a few questions regarding the concrete setup in the garage. Most importantly, it is getting very dirty with the winter driving and caked with mud constantly. I have ...
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235 views

What type of cleaner should I use to remove a puke stain from concrete?

My cat puked on the basement floor in a couple places, but I can't seem to clean the stain. So far I've tried simply mopping with Pine-Sol®, which didn't work. Then I tried scrubbing/mopping with ...
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10k views

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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181 views

Can I put gypsum and paint finish on top of a concrete fast set repair mortar?

I have a finished concrete pillar in my living room that I need to be patched and painted. The pillar has final gypsum and paint on top of concrete. Since the concrete is chipped off I need to use a ...
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1answer
44 views

How to find a plastered hole?

I have a small issue. Few months ago my apartment got renovated, and I listed all holes in walls i want to keep for future use. The rest was, depending on depth, filled with concrete or plastered. And ...
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152 views

Making an existing concrete step taller

I have a step down out the back door of my house and the first step down is way too far, about nine and a half inches. ...
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684 views

What are these metal tags attached to my poured concrete basement wall?

What are these metal pieces attached to my basement poured concrete walls? They are about 2x2 with holes and were pressed into some kind of goop. These walls were poured in 1979. Can I remove them?
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How do I fix this depression in my concrete patio?

I have a concrete patio with a 4-foot by 2-foot shallow oval area that retains water. The concrete is sort of a knockdown pattern (see photo). How do I resolve this depression without smoothing it ...
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70 views

Electric shock from pellet stove

I accidentally let some hot pellets fly out of my pellet stove while stupidly cleaning the glass while it was on. The few pellets melted some of the carpet. I put them out with some water. When i went ...
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how to repair holes left by expanding anchor bolts in concrete

I have a large workbench which I inherited with my current home, and I'd like to replace it with one I'm currently building, mainly since the current one is pretty small, and the top of the bench has ...
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Pouring concrete for fence posts in heavy rain

My contractor just poured the concrete and set the posts for a new fence we are getting and much of the work was done in the pouring rain. Will this hurt the concrete and effect how it holds up down ...
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Is it common for vertical joints to not be filled?

We live in a high-rise apartment, and the shower room cinder-block wall is covered by sheet rock. The wall separates our apartment from our neighbors' apartment. Anyway, I noticed that the blocks ...
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1answer
102 views

How do I make concrete out of mortar?

I need white concrete for a countertop sample, but the only white concrete-like product is white mortar. If I just add an equal sized bag of gravel to the mortar, will it be close enough to use as ...
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How to fill and finish joints on ceiling between pre-cast concrete planks

They are structural precast planks that form the floor above. I think the line is where the sheets are connected. I found a picture of them at http://ths.gardenweb.com/discussions/2578737/ugly-ceiling-...
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1answer
164 views

Should I stain or paint my blotchy concrete?

The house I just moved into has a lot of white spots all over the concrete. I want to stain the whole slab to get it looking fresh and nice. I had a couple contractors come out to help me resolve the ...
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36k views

How do weather conditions affect pouring a concrete foundation?

I'd like to understand how weather conditions affect pouring a concrete foundation. Are there concerns about pouring a foundation during cold, snowy, rainy, or otherwise inclement weather? Is it ...
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108 views

How can I prevent clothes and food stuff from going bad in a moist cabinet

My neighbors are constructing their house from ground up. We have concrete structures for almost all buildings here. When the walls are ready they need to water it so the concrete settles and get ...
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How to insulate a concrete slab foundation in an older house?

What are some ways to insulate a concrete slab type foundation in an older home built in the 1950's? As far as I can tell, the slab is not insulated at all and results in a very cold floor and living ...
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280 views

replace load bearing post with steel column

So I have a joist that stops short of a stairwell and doesn’t connect to the foundation and I’m going to move the supporting beam back 2 feet (it’s about an 8 ft run between the header and other ...
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2answers
65 views

Low spot in patio

I have a low spot where rain/snow melt pools in a stamped concrete patio. There is a small crack that runs through the low spot. I know it's not an ideal situation as I live in an area that has ...
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2answers
154 views

Ground level deck - how to attach bearers to concrete

I'm building a free-standing deck that is at ground level on one side, and the ground slopes away to about 60cm on the other. My question is, what's the best approach for the bearers at the point ...
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39k views

What is the difference between building sand and plaster sand

Recently I mixed a batch of mortar for building and was unsure if the hardware provided me with building sand or plaster sand.. What are the properties that differentiate the two? and are there any ...