In order to have enough concrete for one cubic foot, you’ll require
2.2 bags of 60-lb concrete
. Since bags are only sold in whole (not half, or quarter) quantities, you’ll need to purchase three (3) 60-lb. bags for one cubic foot.
How do you figure concrete footing bags?
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 concrete do I need for a 10 footing?
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.
What concrete do I need for footings?
Typically,
reinforced concrete ranging between 3,500 to 4,000 psi
is used on footing and slabs on grade; between 3,500 to 5,000 psi on suspended slabs, beams and girders; and walls and columns normally require between 3,000 to 5,000 psi. When non-reinforced concrete is used different strengths will be required.
How many bags of concrete does it take to fill a hole?
Regarding this, how many bags of concrete do I need to fill a square hole, if you are filling a round hole of 12 inch width and depth of 24 inch in the ground to set concrete, generally you need around
7 bags of 40 lb
, 5 bags of 50 lb, 4.5 bags of 60 lb, or 3 bags of 80 lb (Total 2 cubic feet or 0.073 cubic yards) of …
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 cubic meter?
How many bags of cement are needed to mix one cubic meter of concrete? A. 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.
What is the strongest concrete mix ratio?
In making concrete strong, these ingredients should usually be mixed in a ratio of
1:2:3:0.5
to achieve maximum strength. That is 1 part cement, 2 parts sand, 3 parts gravel, and 0.5 part water.
How long do concrete footings take to dry?
If you use a concrete that has a quick setting additive you need to wait a minimum of one sunny day, if you are using a standard concrete footing mix I would recommend waiting for a
minimum of seven days and a maximum of 28 days
, of course, that is if the conditions are right for the concrete to cure and set hard .
How far below the ground should a footing be?
Footings should extend to a minimum depth of
12 inches
below previously undisturbed soil. Footings also must extend at least 12 inches below the frost line
How many bags of concrete do I need for a 4×4 post?
When you’re installing a fence post, the amount of concrete you need will be calculated based on the diameter of your fence post and how high the post is above ground. Most fence post holes will need between
1 – 4 bags of concrete
to securely hold the post in place.
Can I pour concrete in a hole full of water?
The good news is that
you can pour the concrete in water
. … The biggest issue with pouring concrete under water is movement. If the water is moving, it can wash away the cement paste that’s holding the sand and gravel together. But if the water is calm, then it’s not a problem at all.
How much area can one bag of cement 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 . 45 cubic feet to get 74.07 total bags of concrete.
How many bags of concrete do I need for a 12×12 slab?
Regarding this, “how many bags of concrete do I need for a 12×12 slab?”, at 4 inches thick, generally you will need approximately either
104 bags of 60lb or 80 bags of 80lb of premixed concrete
for a 12×12 slab, at 5 inches thick slab, either 131 bags of 60lb or 100 bags of 80lb premixed concrete are required, while at …
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 80lb bag of concrete cover?
6 cubic feet
for an 80 lb bag.
