FAQ: How To Install A Concrete Walkway?

How thick does a concrete path need to be?

Concrete Thickness



Pavements for foot traffic only (e.g. paths and patios) should have a minimum thickness of 75 mm. Pavements for vehicles less than 3 tonne gross mass should have a minimum thickness of 100 mm.

Do you need wire mesh in concrete sidewalk?

It’s a heavy, heavy wire. But if you have reinforcing steel bars that go through it or the wire mesh, that makes it a lot stronger. Now in a sidewalk, typically they don’t put metal mesh in; they don’t put the mesh in there. But if it was like a driveway or a patio, they would.

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.

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Can you pour concrete directly on dirt?

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

Should you put plastic under concrete driveway?

It is still a good idea to have protection against rising damp even though you don’t strictly need it. In fact, most professional shed slab builders will install a polyethylene membrane under a shed concrete slab even if it is not specified.

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.

Can I use chicken wire to reinforce concrete?

Concrete reinforced with chicken wire or hardware cloth yields ferrocement, a versatile construction material. It can also be used to make the armature for a papier-mâché sculpture, when relatively high strength is needed.

How do you prepare a concrete ground for a sidewalk?

  1. use a rake to smooth the surface of gravel. Determine Path Placement and Begin Excavation. Plot out the course of the path using stakes and strings.
  2. match and attach ends of boards to stakes. Build the Formwork.
  3. prev. screed the concrete before it gets too hard.
  4. prev. control joint scribing tool creates joints.
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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.

Can I use pea gravel under concrete?

If you use pea gravel beneath a patio, take a few simple steps to ensure the stability of the base before setting your surface stones, pavers or bricks. Click to see full answer. It should be ok to pour concrete over your gravel walk although you might want to give the concrete a little more depth along the sides.

What type of gravel goes under concrete?

Backfill beneath concrete flat-work along foundation walls should be accomplished with a granular material that is uniform in size. Some fill materials, such as round stones like pea gravel, tend to be self compacting. “I recommend open-graded granular material be used,” says Tull.

Is Clay a good base for concrete?

The clay can compress under the weight of the concrete, causing the slab to shift or sink over time. It also can leach moisture from the concrete itself, resulting in uneven curing and a brittle base. With proper preparation, however, it’s possible to pour a slab on clay soil without encountering these problems.

Is sand a good base for concrete?

Pour concrete over a solid, well-drained base



of sand or gravel over clay and other poorly draining soils to provide even support.

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