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A yard of concrete is a measure of volume. A square foot is a measure of area. A cubic yard is 27 cubic feet of stuff. (3x3x3)To relate volume to area you must extend the area over a third dimension. One square foot that is one foot deep will equal one cubic foot. (1x1x1)So, a yard of concrete is 27 cubic feet or 3 feet tall 3 feet wide 3 feet deep. concrete wieghs 150lbs per cubic foot 27cubic feet times 150 pounds is 4050 pounds. This is 1 cubic yard of concrete.
none, a hole has nothing in it
How many square yards in a 20x18 feet 3 inches thick
ATM is the abbreviation for atmosphere's, which is a measurement of pressure. 1 ATM = 14.696 PSI 30 ATM = 440.88 PSI (440.88 pounds)/1 square inch = (40.88 pounds)/(1/144)square feet 63486.72 pounds per square foot. So 30 atmospheres is equal approximately to 63486.72 pounds per square foot.
A yard of concrete is a cubic yard and cannot be converted directly to square feet of coverage. You must first determine the depth or thickness that the concrete will be. For instance, since 1 cubic yard equals 27 cubic feet, a 1 foot thick layer of concrete will cover 9 square yards of area. A 4 inch (1/3 foot) thick layer would cover 27 square feet of area.
A yard of concrete is a measure of volume. A square foot is a measure of area. A cubic yard is 27 cubic feet of stuff. (3x3x3)To relate volume to area you must extend the area over a third dimension. One square foot that is one foot deep will equal one cubic foot. (1x1x1)So, a yard of concrete is 27 cubic feet or 3 feet tall 3 feet wide 3 feet deep. concrete wieghs 150lbs per cubic foot 27cubic feet times 150 pounds is 4050 pounds. This is 1 cubic yard of concrete.
About 1/2 pound.
27 lbs
83 decanewtons per square meter equals 17.335 pounds force per square foot.
350 pounds per square foot equals 1.71 metric tons per square meter.
Is the concrete filled with pebble or lightweight foam? This is really an impossible question. Not enough data.
Wet concrete is approximately 150 pounds per cubic foot. So 80 pounds is approximately 1/50 th of a cubic yard.
none, a hole has nothing in it
== == A square foot is a (two dimensional) measure of area, while a ton is a measure of weight. The two do not equate. On the other hand, a ton of a specific substance could have a specific (three dimensional) volume. For instance, if a one cubic foot concrete block weighed 100 pounds, 20 concrete blocks would equal a (US) ton.
There is no way to answer without a design and the square footage.
45 per square banana
A 16 foot by 16 foot block has an area of 256 square feet. It would require 4.836 16 foot by 16 foot blocks to cover an area of 1238 square feet.