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.

Also, How many 80lb bags of concrete make a yard?

how many 80lb bags of concrete are in a yard? You will need 45 bags of concrete mix to make a cubic yard of concrete.

Hereof, What is a cheaper alternative to concrete?

There are a few different types you can find in the home improvement store that can replace concrete cement used for driveways and walkways. These include pea gravel, crushed stone, and quarry process. Cheaper than other surface materials and low-cost to install.

Also to know How much area does a bag of concrete cover? one 20kg bag will cover an area of 1.1m2 to a depth of approximately 10mm. or 108 x 20kg bags equates to one cubic metre of mixed concrete.

How many bags of concrete makes a yard?

60 cu ft. So it will take 45 bag to equal one cubic yard of concrete. If you have a project over a 1/2 a cubic yard you should consider our Mix On-site Concrete especially if you are hand mixing. You will be one tired puppy if you mix a yard of concrete by hand.

21 Related Questions Answers Found

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.

How many bags of cement do I need for 1 yard?

Pure cement, sand and crushed rock all have about the same density, so a block of pure cement measuring 1 cubic yard of volume (about 3,600 pounds) will contain 45 bags of cement.

What is poor man’s concrete?

We have a few companies locally that offer “poor man’s concrete”. I’m not sure exactly what it is, but I’ve seen it in driveways and such. It’s a white powdery material they dump and flatten out and when it gets wet, it’s supposed to harden like cement.

What is an alternative to concrete?

AshCrete is a substitute for traditional concrete that heavily utilizes recycled fly ash. Fly Ash is mixed with lime and water to make it strong and durable, similar to conventional cement.

Is it cheaper to pour concrete yourself?

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 do I calculate how many bags of concrete I need?

For concrete, the formula for volume is as follows: length x width x thickness. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Use the following yields per each bag size: 40 pound bag yields .011 cubic yards.

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!

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.

How much area does a 50 lb bag of concrete cover?

Regarding this, how much does a 50 lb bag concrete cover?, as 133 lb concrete = 1 CF, so a bag of 50 lb concrete = 50/133 = 0.375 CF, therefore, a 50 lb bag of concrete approximately cover around 1.5 square feet area upto standard depth of depth of 3 inch for your patio and sidewalk.

How thick should a concrete slab be?

Standard 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.

How much does a 30×30 concrete slab cost?

How much is the cost of a 30×30 concrete slab? A 30×30 foot concrete slab costs about $5,400 including installation. This is for 6-inch thickness, but can go up or down depending on what your concrete pro recommends.

How much does a 50 lb bag of concrete cover?

One 50-pound bag of Quikrete Fast Setting Concrete Mix yields about . 375 cubic feet. For example, if you need to cover 33.333 cubic feet, using 60-pound bags of concrete, divide 33.333 cubic feet by .

How do you calculate concrete?


How to calculate concrete:

  1. Determine how thick you want the concrete.
  2. Measure the length and width that you’d like to cover.
  3. Multiply the length by the width to determine square footage.
  4. Convert the thickness from inches to feet.
  5. Multiply the thickness in feet by the square footage to determine cubic feet.

How long do you leave forms on concrete?

The forms or “molding” that holds the concrete in place until it dries should be left alone for at least two days to ensure that the concrete is completely dry. If the forms are removed too soon, the concrete can begin to sag, crack and collapse, especially if conditions like temperature affected its strength.

What happens if you use cement without sand?

The proper ratio of materials will determine the strength of your concrete. Cement and water act as the paste of the concrete. If you don’t have enough paste, the concrete will dry with a honeycombed surface and may be too porous.

Is crushed concrete Dusty?

Crushed concrete is very dusty. If you have no intention of pouring concrete ever, go with regrind asphalt. Beware when it packs you won’t be able to shave off an inch here or there. It’ll just come out in chunks however thick it was put down.

What can I use instead of a concrete patio?


BUDGET AND ECO-FRIENDLY CONCRETE ALTERNATIVES

  1. Wheel barrow.
  2. Shovel.
  3. Rake.
  4. Lawn roller – You can also rent one.
  5. Binding Agent (Pick your favorite below!)
  6. Watering Can for some applications.
  7. Gravel – Amount will depend on the size of your project area. …
  8. Edging pavers – I used ones similar to these pavers.

Can I make my own concrete slab?

For most do-it-yourselfers, the best material for building a concrete slab is ready-mix crack-resistant concrete mix. The wet mix is poured into a prepared wood form, then left to cure. … Two people will mix the concrete in the wheelbarrow, while the third person spreads out the mixed concrete in the form.

How much does it cost to pour a 20×40 concrete slab?

Concrete Slab Cost Calculator

Size (in feet) Approximate Cost
20×40
$4,800
30×30 $5,400
30×40 $7,200
30×50 $9,000