- 1 What is the mix for a concrete path?
- 2 How thick does a concrete path need to be?
- 3 Can you pour concrete directly on dirt?
- 4 Can I make concrete with just sand and cement?
- 5 What is the strongest concrete mix ratio?
- 6 Can I pour a 2 inch concrete slab?
- 7 Do you need gravel under concrete sidewalk?
- 8 What is the minimum depth for concrete?
- 9 Should I put plastic under concrete?
- 10 How do you prepare the ground before pouring concrete?
- 11 Is sand a good base for concrete?
- 12 Can you put too much cement in concrete?
- 13 Is pure cement stronger than concrete?
- 14 What is the best concrete mix?
What is the mix for a concrete path?
The concrete mix for the path is 1 part concrete to 4 parts all in aggregate (10mm max) or 1 part concrete, 2 parts sand, 3 parts coarse aggregate (10mm max). So a 20 metre (65 feet) path, 90cm (3 feet) wide and 75mm depth would give: 20 x 0.9 x 0.075 = 1.35 cubic metres.
How thick does a concrete path need to be?
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.
Can you pour concrete directly on dirt?
Long story short, yes you can pour concrete over dirt.
Can I make concrete with just sand and cement?
You cannot make concrete with only sand and cement because it requires a coarse aggregate like gravel. The stone component is the most critical, as that is what gives it its durability and strength. When mixing merely sand, cement, and water, you get a material closer to mortar.
What is the strongest concrete mix ratio?
A strong concrete mix would be something like 1:3:5 (Cement, Sand, Coarse Gravel). In this case, both the sand and gravel are the aggregate.
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.
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.
What is the minimum depth for concrete?
Minimum Thickness Of Concrete Slabs
Eurocode 2 states minimum thickness for floor slabs in buildings is 125mm.
Should I 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 do you prepare the ground before pouring concrete?
Preparation is the most important aspect of pouring a concrete slab.
- 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.
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.
Can you put too much cement in concrete?
Cement Amount: As a thumb rule, increasing the cement increases the strength. Since major force transfer in a concrete/mortar matrix is from sand-sand interaction, excess cement will turn the mortar very brittle since cement particles cannot transfer normal contact force – they are good at providing shear strength.
Is pure cement stronger than concrete?
No pure cement is not stronger than concrete as cement is only binding materials which bind aggregate and sand with the help of water. If alone cement is used it will shrink and has no compressive strength for which concrete is known for. Pure cement is actually a component of concrete.
What is the best concrete mix?
In terms of the ratio for concrete, it depends on what strength you are trying to achieve, but as a general guide a standard concrete mix would be 1 part cement to 2 parts sand to 4 parts aggregates. For foundations, a mix of 1 part cement to 3 parts sand to 6 parts aggregates can be used.