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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Would upgrading my basement with sandstone blocks be worthwhile?

Having a look at an old farmhouse that is for sale in the area, and as with most houses in the area of this age the foundation is built on red sandstone blocks, around five feet deep, with a dirt ...
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Will running a dehumidifier near new concrete cause it to cure poorly?

I have a new house with high humidity in the basement. Will running a dehumidifier constantly cause the new concrete to cure poorly?
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How do I move a slab of concrete?

I want to build a fence in my backyard by my garbage stand is sitting on a concrete slab and that slab is in the way of where I want to put the fence so I want to move it over a few feet. The slab of ...
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Should I be able to just peel tile off the wall by hand if it is installed right?

We hired a contractor to remodel our master bathroom. For the tile installation in the shower, he started with a float-cement backing. To show quick progress, he rushed through this step and the final ...
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Can a cheap angle grinder be used to cut concrete and ceramic tiles?

I am interested in the Black & Decker KG100 600W Angle Grinder because it is cheap enough. I will only use it occasionally for small scale do-it-yourself home improvement works. But, I really ...
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What is the best way to fill a 3 inch gap under my concrete front porch?

I'm in need of some help with my concrete foundation. As I was leaving the house this morning I discovered two or three skunks crawling into a gap under my porch. The hole is on the bottom of the ...
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What are these holes in my concrete wall and how can I mount things to them?

I have several 2.3" holes in my concrete walls. I think they were likely used as part of the construction or assembly process. They're maybe an inch to an inch and a half deep, and they look like ...
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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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Water coming in through the walls of an old concrete garage

I recent bought a house with a detached garage, made of old concrete (high aggregate content) reinforced with steel rods and set into a hill. Built in 1938 or so; no waterproofing. Now that Boston ...
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Should I set wooden porch pillars into, or on to concrete footings?

I'm building a wooden porch on the front of my house. I have six 4" wooden pillars supporting the structure. It's light, doesn't contain concrete, roof tiles, etc, and is made entirely of wood. I'm ...
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How long can I store a bag of Quikrete?

I had planned to find a nook in the low-humidity house in which to shove it, but it would be interesting to know how long the bag will keep in various humidities. The main question is: How long can I ...
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Should I use self-leveling concrete or mortar to level a patched area of concrete prior to tiling it?

I had to repair cast iron pipe in the basement. This left me with a 2ft x 3ft hole in my tiled basement floor. We cut along the grout lines, so I just need to replace the tile and concrete. Well, ...
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How can I paint a concrete floor?

I have an ugly black concrete floor in the laundry and I would like to paint it white over the top. I have a few questions. What different steps do you take when you are painting over a color rather ...
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How can I attach normal framed walls in between concrete columns?

I'd like to add partitions to this grid of columns. I want to make "normal" walls, framed with 2x4 and faced with plywood or drywall. My concern is how to attach the walls to the columns. Naively, I ...
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Are there any rules of thumb for whether a concrete pad needs metal re-inforcement and if so, how much?

I may be doing some concrete work soon around the house and I'm somewhat of a novice at it. One thing that I am unsure about is when I need to reinforce the concrete with re-bar or other metal ...
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657 views

How do I make a fake rock finish for a water feature?

I would like to create basin for a water feature. It would look really cool if it can have a fake rock finish. How would I go about creating it? What material would be recommended, I have seen a ...
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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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What is “mud-jacked”, and why is it not done in the UK?

I have seen of few questions/answers about "mud-jacked", but I have never come across it in the uk.
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How can I fill a void in a concrete seawall?

My concrete seawall (on a freshwater lake) has a void in a bottom corner. It seems to have been created with the void -- it's not a result of trapped water freezing and pushing out a chunk. I'd like ...
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How to fix a through hole in a concrete step?

Here're two photos of a through hole in a step in an enforced concrete staircase in an apartment building. The step is about one inch thick, the hole is about three inches wide and appeared many years ...
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How can I clean a very dirty concrete basement floor?

My basement floor has been made amazingly gross (thank you, cats) and I'd like to get it really clean. Is there an option other than scrubbing on hands and knees? Are there cleaning solutions that ...
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How do I patch these sections of concrete driveway meeting the house?

Where my driveway meets my house there were two sections of loose concrete that were deteriorating and making a mess. I removed the loose concrete and discovered that those sections were placed on ...
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What do I level a 2" slope in my concrete basement floor?

I want to finish a 12'x36' part of my basement. The trouble I am having is that it is sloped to a floor drain. I was told that DRIcore and shims would work but the drain is a 2" slope down from the ...
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What kind of paint should be used on an outdoor concrete walkway?

I have an outdoor walkway that was freshly painted just before I bought my house two years ago. Two winters have worn down the paint and now it needs another coat or the exposed concrete will crumble. ...
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How do I properly renovate the concrete floor of my balcony?

I live in an apartment that can be characterized as an old soviet-era, 5-story, multi-apartment, concrete block-based building. That means, everything was built by "stroybat" a soviet-time army ...
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Should I use concrete, or some other method to fix this entry area?

I have an entry walkway that's 9ft x 4ft by my front door that I need to fix so it is solid ground. I was thinking of putting concrete down and then laying tile on top of the concrete. I have some ...
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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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Small Concrete Paver patio under BBQ

I have a BBQ that's currently sitting on a not so level grassy area. I'd like to create a very small base for the grill with two 2ft by 2ft concrete pavers so I have a level base, but I don't know how ...
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What is the best way to fill a hole in a concrete basement floor?

My basement floor has a hole cut where the water line enters the house. This hole is around 2ft square, and digging down a little I hit dirt and small roots. I'd like to seal this hole as I believe it ...
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How to hang a baby cradle from a concrete ceiling?

I am considering buying a baby cradle that will hang from the ceiling. We have a concrete ceiling in the apartment and I am not sure that it will be possible to install it safely. It needs to be able ...
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How can I prevent cracking in concrete (or earthen) walls from the freeze/thaw cycle?

I'm interested in building a garden wall from either concrete or rammed earth, or a mixture of the two, but I'm concerned about Michigan winters and the havoc they wreak on everything solid. It seems ...
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Can I use landscaping lava rock as a concrete slab base?

The side of our house if continually overrun with weeds. I'm thinking of fencing it in and laying some concrete to prevent the weeds and provide some storage area. Currently there is red lava rock ...
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Do I need to install dry wall in my basement?

I have a concrete basement with concrete walls. I'm thinking about just painting the basement and not have to put up dry wall because I want to save money. Is that a good idea or should I really ...
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Will I cause problem/cracks with jumping exercise in upper floor?

Every day I am doing my martial art practice in upper floor. It contains jumping and power movements which cause sounds downstairs. Is there any problem for concrete by this continuous jerking ...
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Patching a cracked concrete/brick walkway

A smallish part of the concrete/brick walkway leading up to my front door has broken off. The cracked piece is about six inches long by two inches wide. How do I go about repairing this? Is this ...
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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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How to reinstall iron stair railing in concrete that rusted out at the base?

So one day some time ago our iron stair railing going from the sidewalk to the stoop rusted through at the base of the posts and fell right over. I had a welder friend cut off the rusted portion and ...
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Can I install hardwood floors (not floating) on a concrete floor?

We have recently bought an old house, and the ground floor has a hard floor and is currently covered in tongue and groove laminate - which we hate. We'd like to put reclaimed floorboards down - is ...
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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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How do I reduce height of the curb on my driveway?

I have a concrete driveway (normal 2 car poured driveway) which is cut vertically (90 degrees) about 2.5 inches above the street. My father-in-law lives with us and has a powered wheelchair. The ...
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What are some tips for installing a small shed?

I want to put in a small shed to store my push lawn mower and perhaps a few other things. Our village's website states we need a permit: SHEDS – Must be either anchored to a concrete slab or have ...
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Technique to level a patio for concrete and tiling

I currently have a large patio which has brick paving. unfortunately the paving has started to sink in spots and gathers rain water. I will be removing the brick and laying a slab of concrete, in ...
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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 ...
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How to make 3“ concrete ”legs" via reusable casting structure?

I have a design for a (set of) planter(s) I'm trying to make, and to make the design I have in mind, I need an 18" long 3" OD leg with a bit of rebar in them. (let's say 100 of these bad boys in ...
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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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How should I build an exterior door landing pad?

I've got a building with several exterior doors (all opening inward). The slab and walk-up is about 18+" from the ground. Code requires that I have a 36"x36" landing pad outside each exterior door. ...
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How to patch concrete as invisibly as possibe?

I had a plumbing repair done this week that required them to jackhammer a small hole through a concrete porch in front of my house. It is small enough that I’ll probably attempt the patch myself, but ...
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How can I thicken Acid Stain myself?

I have been doing a lot of decorative concrete around my house, and I have yet to find a masking tape or caulking or anything that can hold the acid stain where I want it. I finally found something ...
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How can I install T molding on concrete subflooring?

I'm at the point where I want to install some T molding for the transition from our main room to the bedrooms. I just took a look at the directions and they only show screwing the track into the ...
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What is the maintenance schedule for a concrete driveway?

I have a concrete driveway that I'd like to keep looking good, and in good working order. What needs to be done to maintain the driveway, and how often should it be done?