Table of Contents
Can you pour concrete against a wall?
Concrete is fairly cheap to use, and if poured correctly, can last for decades. When pouring a concrete slab against an existing wall, installing expansion strips between the patio and the wall can protect both structures from the effects of temperature changes on the concrete and the ground beneath it.
Can I pour concrete against my house?
Yes you will need boots, and get in the middle of it. When placing the concrete the edges are floated very close to the finished level, all around the edges. The pour will start from the farthest side, and the pour will proceed closer to the truck.
What goes between concrete slab and wall?
Caulking is the process of filling in cracked concretes or the gap between slab and wall. Now, this is an efficient way of sealing the gap. A large gap can result in water getting into the cracks and making it even bigger. So you must caulk the gap to cover it up.
Can you pour concrete directly on dirt?
Long story short, yes you can pour concrete over dirt.
Can you pour concrete next to concrete?
And you can’t just pour two slabs next to each other and have them meet the structural requirements of your project; you must join the two concrete slabs in the proper way. While it sounds complicated, the proces to join two concrete slabs is easy but might take a few attempts to get it right.
Should concrete steps be attached to foundation?
Some local building codes may require that you anchor concrete steps to the foundation wall. You can either drill at an angle into a poured concrete foundation, or through a concrete block wall and insert rebar in the holes.
Do you need wire mesh in concrete sidewalk?
When it comes to concrete, you can’t avoid cracks entirely, but wire mesh reinforcement will help hold the material together when they do occur. Also, it will help evenly distribute the weight of cars on your driveway. The added strength of steel is especially crucial if your subgrade isn’t up to par.
How thick should a concrete sidewalk be?
Sidewalks should be at least 4″ (100mm) in thickness. Simple slabs for small foundations, bases, etc., normally 4″ to 6″ (100mm to150mm) thick, depending on the load they must bear. Slope the walk away from buildings to provide proper drainage.
Do you need gravel under concrete?
Whether you pour concrete for a walkway or patio, a strong gravel base is required to prevent the concrete from cracking and shifting. Gravel is especially important in clay soil because it doesn’t drain well, which results in water pooling under the concrete slab and slowly eroding the soil as it finally drains.
Do you need rebar for 4 inch slab?
The thickness of rebar should be no more than 1/8 that of the slab, so a 4” slab shouldn’t have steel greater than #4 or 1/2″ bar. It’s best to check with a Structural Engineer if your slab will bridge or cantilever. What is this? For 4” concrete slabs used for driveways and patios, #3 rebar is common.
Is Paving cheaper than concreting?
Paving is cheaper compared to concrete and is a higher quality product. The cost effectiveness also applies in terms of installing. The only time the costs are almost similar is the preparation time because the space has to be excavated, levelled and filled with the bedding material which forms the base.
Can pressure treated lumber sit on concrete?
Can pressure treated wood sit on concrete? – Quora. YES. Any exterior concrete that is in contact with earth may wick moisture. Thus, it is required to place pressure treated wood directly against the concrete if one wishes next to build off that concrete with untreated wood.
What is the black stuff between concrete slabs?
An expansion joint is a material placed in the cracks (or joints) between concrete slabs to protect the slabs from cracking when they contract and expand as the temperature changes. This material acts as a shock absorber, absorbing the stress from the slab’s movement.
Do you have to use pressure treated wood on concrete?
Pressure-treated wood is required whenever you attach framing lumber or furring strips directly to concrete or other exterior masonry walls below grade. Note that this requirement is only for exterior walls, as these may wick moisture onto the lumber.
How do you prepare the ground before pouring concrete?
Dig the ground down to the proper depth. Smooth out the ground with the flat side of a rake so that you have a level surface. Tamp the ground with a hand tamper or mechanical tamper. Pour 2 inches of small, rounded gravel for additional drainage needs.
Can you pour concrete over gravel?
Laying a concrete driveway over an existing gravel one is possible, but it is not generally recommended. However, if the gravel in your driveway is small enough, it is possible to create a cement driveway over the existing one.
