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Q:A:### Quick Answer

**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.

Before pouring the slab, use concrete forms made of 2x4 or 2x6 lumber, depending on the depth of the slab preferred. Excavate the slab area to a depth 3 inches deeper than the slab desired, place and tamper 3 inches of gravel to give the slab a base upon which to sit. After pouring and leveling the concrete, remember to let it cure.

Learn more about Arithmetic- Q:
## How many cubic feet are there in an 80-pound bag of concrete?

A:

Full Answer >**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.Filed Under: - Q:
## How many feet is the 40-yard dash?

A:

Full Answer >**There are exactly 120 feet in a 40-yard dash.**There are 3 feet in a yard, which means that 40 yards can be converted to feet by multiplying it by three.Filed Under: - Q:
## How many 90-pound bags of concrete are needed for 3 cubic feet?

A:

Full Answer >**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.Filed Under: - Q:
## How many bags of mulch are in a yard?

A:

Full Answer >**The amount of bags of mulch in a yard depends on the size of the bag.**If the bags contain 2-cubic-feet of mulch, then 13.5 bags are needed to fill one yard. Nine bags are needed if using 3-cubic-feet bags.Filed Under: