Question: What Is The Cheapest Way To Buy Concrete?

How many 80lb bags of concrete make a yard?

How many 80 lb bags of concrete do I need for 1 yard.

The finished volume of an 80# bag of Sacrete or Quikrete (pre-mixed cement, sand and gravel) is 0.6 cubic foot (stated on the bag).

There are 27 cubic feet in a cubic yard.

Dividing 27 cubic feet by the volume of the bag will give you the number of bags you need..

How many square feet does an 80lb bag of concrete cover?

4 sq feet4 sq feet in that amount of cement.

How much does a yard of concrete cover?

One Cubic Yard of Concrete: 4-inches thick – covers 81 square feet. 5-inches thick – covers 65 square feet.

How many bags of concrete do I need for a 10×20 slab?

For a 10 x 10 slab, you would need 77 60-pound bags or 60 80-pound bags. If we add an extra 10%, that’s an extra 8 60-pound bags or 6 80-pound bags.

What can be used instead of concrete?

Concrete: Cement SubstitutesPulverised Fuel Ash (PFA), aka ‘Fly ash’ as a cement substitute. PFA is a by-product of coal-burning power stations. … Ground Granulated Blast-furnace Slag (GGBS) as a cement substitute. GGBS is a by-product of the iron and steel industry. … Silica fume. … Limestone fines. … Alternative fuels.

Can you pour concrete over grass?

Cheap and versatile and easy to pour, concrete will last you years down the road. You can pour it just about everywhere—including on the grass. Although it takes a little work, pour concrete over grass to create that walkway you always wanted or that mowing preventative you could previously only dream about.

How many bags of concrete do I need for a 4×8 slab?

Your project is 32 square feet at a depth of 4”. Here is the quantity that you will need for your slab. Quikrete Concrete Mix: 24- 60lb bags.

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

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.

Is it cheaper to make 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. However, it is important to get the ratio right and to mix the concrete thoroughly.

How do you estimate a concrete slab?

How to calculate concrete:Determine how thick you want the concrete.Measure the length and width that you’d like to cover.Multiply the length by the width to determine square footage.Convert the thickness from inches to feet.Multiply the thickness in feet by the square footage to determine cubic feet.More items…•

How thick does a concrete slab need to be?

4 inchesStandard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.

What is poor man’s concrete?

We have a few companies locally that offer “poor man’s concrete”. … It’s a white powdery material they dump and flatten out and when it gets wet, it’s supposed to harden like cement. But, it’s not as pretty and won’t get as hard.

How do you bid a concrete slab?

Basic concrete slab cost Take the length of the concrete slab x the width of the slab to get the total square footage. Multiply the total square footage by 6 (dollars) to get the total price. L x W x $6.00 in this example. Those are the basic materials and labor included in the cost of a concrete slab.

How many inches of gravel do you need for a concrete slab?

Construct the form with 2×4 or 2×6 lumber and secure in place by wood stakes and deck screws. Excavate the slab area to a depth of about 7 inches, allowing 3 inches for a gravel base and 4 inches for concrete.

Is quikrete as strong as regular concrete?

Quikrete Fast-Setting Concrete Mix is easy to use — just add water — and it sets in 20 to 40 minutes. It’s the most efficient option for setting posts for things like mailboxes, fences and lamps. … That’s stronger than the concrete used for foundations on most homes.

Can I mix my own concrete?

To mix your own concrete for footings and piers, use 1 part Portland cement, 2 parts clean river sand, and 3 parts gravel (maximum of 1 inch diameter and specially washed for concrete mixing). … Add clean water, a little at a time, as you mix. The concrete should be plastic, not runny.

Can you pour concrete over dirt?

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

Why is concrete so expensive?

Concrete work can easily become expensive because there are many factors that go into it besides the cost of concrete and labor. Other things considered in the final price include the type of concrete job and project elements that could result in additional work and materials required to complete it.

How much does it cost to pour a 20×20 concrete slab?

Concrete Slab Cost CalculatorSize (in feet)Approximate Cost20x20$2,40024×24$3,46020×30$3,60025×25$3,75010 more rows

How much does a load of concrete cost?

Use $90 per cubic yard as a ballpark figure for concrete prices, but concrete slab cost will vary by region. Also, expect a fee of about $60 per load for delivery from a concrete truck for concrete cost. There could be other fees for such things as Saturday concrete truck delivery and small loads.

What is the difference between a concrete slab and a cement slab?

Although the terms cement and concrete often are used interchangeably, cement is actually an ingredient of concrete. Concrete is basically a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement. Concrete gets stronger as it gets older.