To pour a 4-inch slab that measures 1 square yard, use six 80-pound bags of concrete, and for a 6-inch slab, use eight 80-pound bags of concrete. One 80-pound bag of concrete covers 4 square feet at a thickness of 2 inches.
The amount of concrete that comes from a 60-lb. bad of pre-mixed concrete depends on what depth in which the slab is being poured. The Quikrete concrete calculator can help builders determine how much concrete they'll need to perform a given job based on the size of the slab desired.
An 80-pound bag of concrete yields 0.60 cubic feet of wet concrete when mixed with the proper amount of water. Concrete consists of portland cement, sand, stone, gravel and additives that make the substance cure when it dries. An 80-pound bag needs about 6 pints of water to mix properly.
It requires two 80-pound bags of standard concrete mix for a 4- to 6-inch-thick concrete slab that is 2.0801 square feet, which is equal to 3 cubic feet. So, two 90-pound bags of concrete should get the job done.
There are 45 80-pound bags and about 60 60-pound bags of concrete in a cubic yard. Each 80-pound bag of concrete covers about 0.6 cubic feet. There are 27 cubic feet in a cubic yard: 27/.6 = 45.
It will take 60 60-pound bags of ready-mix concrete to make one cubic yard of concrete. This yield is approximate and does not include allowance for uneven subgrade, waste, etc.
When you buy a five-pound bag of flour, you might envision the dozens and dozens of cookies you'll be able to make or the numerous loaves of bread or cakes you'll bake. Although flour is sold by weight, many recipes list measurements of flour in cups. How many cups does that five-pound bag contain? I
To estimate concrete costs, acquire the contact information for three concrete suppliers, get quotes from each company, compare the quotes, and choose a supplier. The process will take approximately 24 hours and requires access to a telephone.
The acronym "lb." stands for pound, an imperial measurement of mass. Mass is a measure of how much matter is in a substance or object. The pound is equal to 16 ounces, which means that any amount of ounces can be converted to pounds by dividing them by 16.
From 1982 to 2015, the cost of concrete rose fairly slowly during most years. The price of concrete varies based on demand; during the recession that began in 2008, for example, the cost of concrete dropped before rising as the recession ended.