Often asked: How To Build A Cement Sidewalk?

How thick does a concrete sidewalk need to 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 wire mesh in concrete sidewalk?

Reinforcing concrete sidewalks with wire mesh helps to bridge over small imperfections in the subgrade. This lessens the likelihood that sinkholes will develop. Concrete sidewalks can be replaced in sections that mesh together nicely, although the color does not always match (few materials do).

What is the average cost for a concrete sidewalk?

Most U.S. homeowners pay between $6 and $12 per square foot for installation of a new concrete walkway. Prices can go beyond this if significant grading is required or a complex decorative finish is requested. Get estimates for your concrete walkway from contractors near you.

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Can I pour concrete directly on dirt?

Long story short, yes you can pour concrete over dirt.

Do you need gravel under concrete sidewalk?

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.

Can I pour a 2 inch concrete slab?

If done properly, new concrete can often be poured right over an existing slab. For this to be feasible, the contractor needs to pour at least 2 inches thick, use smaller aggregate, and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.

What is the best base for a concrete sidewalk?

A firm, well-drained base is the key to crack-free concrete. The best plan for a solid base usually includes compacted soil followed by several inches of a base material such as gravel. But the best base depends on climate and soil conditions.

Is wire mesh better than rebar?

Considering the support constraint, rebar is undoubtedly stronger than wire mesh. Several constructors consider rebar for domestic jobs. For thicker driveways and locations that involve greater traffic, rebar is always a good option to consider.

Can I use chicken wire to reinforce concrete?

Materials such as chicken wire, stucco mesh, wire screening, expanded metal, fence wire or fiberglass cloth should never be used as primary reinforcement because their properties are too variable or they are not sufficiently strong. You cannot rely on these materials.

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How much does it cost to pour a 12×12 concrete slab?

How much does a 12×12 concrete slab cost? The average cost to pour a 12×12 concrete slab that is 4” thick is between $888 and $1,584, with professional labor and materials included.

Do you put rebar in sidewalk?

Most sidewalks don’t need to be reinforced with rebar.



Rebar is a steel bar used to reinforce the strength of concrete used to withstand heavy weight. General use sidewalks don’t benefit from the addition of rebar.

How much should a concrete driveway cost?

A concrete driveway costs from $8 to $18 per square foot, depending on decorative colors and finishes. While a plain gray concrete driveway costs between $5 and $7 per square foot to install. Concrete is ideal for getting the look of stone or pavers, without the high cost.

Should you put plastic under concrete?

Recently, though, research has shown that the old traditional layer of 6-mil Visqueen (polyethylene plastic) under the slab is seldom effective for two main reasons: Although it may seem water-tight, this grade of material allows a lot of water vapor to pass through.

How long does it take for 4 inches of concrete to cure?

When waiting for concrete to dry, keep these timeframes in mind: 24 to 48 hours – after inital set, forms can be removed and people can walk on the surface. 7 days – after partial curing, traffic from vehicles and equipment is okay. 28 days – at this point, the concrete should be fully cured.

Do you need rebar for 4 inch slab?

No, you do not need rebar for a 4inch slab of concrete on grade. A 4inch-thick slab cast on the ground and in permanent contact with it will float and rebar is not required. Rebar is recommended on concrete measuring 5 – 6 inches thick.

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