If you’re using 50lb bags of concrete, you’ll need 72 bags to make a yard. If you’re using 60lb bags of concrete, you’ll need 60 bags to make a yard. If you’re using 80lb bags of concrete, you’ll need 45 bags to make a yard.
Also, How many bags of concrete do I need for a 10×10 slab 4 inches thick?
Regarding this, “how many bags of concrete do I need for a 10×10 slab of 4 inch thick?”, at 4 inches thick, generally you will need 49 bags of 90lb ready mix concrete, 56 bags of 80lb concrete, 74 bags of 60lb concrete or 111 bags of 40lb ready mix concrete for a 10×10 slab.
Hereof, Should you put plastic under concrete?
A concrete vapor barrier is any material that prevents moisture from entering a concrete slab. Vapor barriers are used because while fresh concrete is poured wet, it’s not supposed to stay that way. It needs to dry and then stay dry to avoid flooring problems. … This is why a vapor barrier under concrete is essential.
Also to know How much does 2 yards of concrete cost? Bulk Concrete Prices
|Cubic Yards||Price Range|
How many bags of cement do I need for 1 cubic meter?
One cubic meter of concrete is equal to 1.308 cubic yards of concrete. If there are 5 1/2 bags of cement in 1 cubic yard of concrete, there would be 7.2 bags in 1 cubic meter of concrete. These are the 94 pound bags of portland cement or 42.64 kg bags of cement. Join in and write your own page!
How much area will a 80lb bag of concrete cover?
40 pound bag yields .011 cubic yards. 60 pound bag yields .017 cubic yards. 80 pound bag yields .022 cubic yards.
How much concrete does an 80lb bag make?
6 cubic feet for an 80 lb bag.
Can you pour concrete directly on dirt?
Long story short, yes you can pour concrete over dirt.
Do I 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 a moisture barrier under concrete?
Water vapor will always move from a high relative humidity environment below the building into an area of low relative humidity – even through concrete. That’s why nearly every expert in the concrete industry recommends a below-slab vapor barrier to stop the vapor drive of water upward and into your building envelope.
How many bags of concrete do I need for a 10×10 slab?
The volume of concrete required for a 10- by 10-foot slab depends on the diameter of the slab. For a 4-inch slab, either eight 60-pound or six 80-pound bags are required, while for a 6-inch slab, either 12 60-pound or nine 80-pound bags are necessary.
How do you price concrete work?
Concrete pricing is typically quoted per cubic yard or cubic meter (metre). For an average estimating number, you can use $77 per cubic yard.
Is it cheaper to mix your own concrete?
One of the least expensive ways to get concrete is to mix your own. You can buy bags of the mix from a home improvement store. Typically, you only have to add water for it to be ready to pour. … Otherwise, you risk getting a weaker concrete once it cures, which could lead to cracks or crumbles within a couple of years.
How much does a 25kg bag of cement cover?
As a rule of thumb 1 of our 25kg bags will cover an area of 0.25m to a recommended depth of 50mm. As a rule of thumb 1 of our 25kg bags will cover an area of 0.25m to a recommended depth of 50mm.
How much does 1m3 of concrete cost?
How much is the cost of concrete per m3? The average cost of concrete is anywhere from $200 – $300 per m3 (cubic metre), though you could pay as much as $350 for 40 MPa strength.
How many 25kg bags are in a bulk bag?
One may ask, how many 25kg bags in a bulk bag?, generally a bulk or jumbo, loose tonne bag of building material such as ballast, sand or aggregate generally weight around 850kg which yields 0.5 m3, so number of 25kg bags in a bulk bag such as 850/25 = 34 bags, hence, there are 34 bags of 25kg in a bulk or jumbo or …
How many bags of concrete will fit in a mixer?
Heavy-duty paddles mix the concrete to a uniform consistency. This concrete mixer can fit up to two bags of concrete.
How many bags of cement do I need for 100 square feet?
4 bags ( 401 kg) of cement and 1593 nos bricks are required for 100 square feet 13.5 inch brick wall.
How much does 4 yards of concrete cost?
Each cubic yard of concrete costs
$119 to $147 per cubic yard
Short-Load Concrete Prices.
|Cubic Yards||Mixing On-site Fees|
|3 – 3.75||$90|
|2 – 2.75||$100|
|1 – 1.75||$110|
Can I use pea gravel 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.
How much concrete will a 94 pound bag of Portland cement make?
One 94 lb. bag of Portland Cement makes 4.5 cubic feet of concrete. For thicknesses less than 2 inches and toppings, use: 1 part of Portland Cement with 3–4 parts of concrete sand or general purpose sand.
What type of gravel goes under concrete?
Most concrete contractors want a mix of coarse and fine aggregate to create a compactable base that is going to be safe for settlement and drainage. Crusher run (a mix of crushed stone and stone dust) is one of the best base materials for concrete flatwork.
How many inches of gravel do you need for a concrete slab?
How Much Gravel Do You Put Under a Concrete Slab? You will need 3 inches of gravel under a concrete slab that is 4 inches thick. More gravel is better, but 3 inches is the minimum amount of gravel you should have with a 4” slab. Use ¾” washed and screened gravel, then compact it to level.
What size gravel is best for concrete?
Gravel for Concrete
Ideally, 6 inches of crushed stone or gravel should be used for most driveways. Proper application requires that the driveway hole be dug out, and the soil has to be prepared.