Q:
# What is the formula for concrete calculations?

**The formula for concrete calculations is (length x width x depth) divided by 27.** The result of this formula provides the number of cubic yards of concrete needed. The measurements must be in feet in order for the equation to work.

Concrete is comprised of several components including water, Portland cement and aggregate, which is granular material such as sand and rocks. Portland cement commonly comes in a powdered form and is the binding agent in the mixture. Proper hardening of a mixture requires a humid environment to achieve optimal strength. In environments where it is difficult to ensure constant humidity, such as the outdoors, water is sprayed on the concrete, which is covered with a plastic sheet. The aggregate materials provide reinforcement and determine the density of the finished product.

There are a variety of concrete densities. Concrete for standard use is premixed with inexpensive lightweight aggregate such as gravel. High-density concrete require heavyweight aggregates such as barites, magnetite, iron or lead. The use of high-density concrete occurs in the construction of nuclear facilities and places where it is necessary to have high structural integrity while taking up little space. It is more costly than standard concrete, but provides superior shielding against radiation while being more cost effective than lead or steel alternatives.

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Q:
## How is the price per yard for concrete determined?

A: The price per cubic yard of concrete is determined by multiplying the desired finished length, width and depth of the concrete and dividing that number by ... Full Answer >Filed Under: -
Q:
## What is the formula for concrete in cubic yards?

A: Multiplying the length, width and depth, converted to yards, of the area in question provides the amount of concrete needed in cubic yards. This formula is... Full Answer >Filed Under: -
Q:
## How do you calculate concrete amounts?

A: Manually calculate concrete amounts in cubic yards for square or rectangular areas by multiplying the length by the width by the depth and dividing by 27. ... Full Answer >Filed Under: -
Q:
## What are some average steel channel dimensions?

A: A steel channel with a depth of 15 inches may have a width of 3.716, a thickness of .716 and a sectional area of 14.7 inches. Alternately, a 15-inch deep s... Full Answer >Filed Under: