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Well, you make a sidewalk from concrete, not just cement. Concrete consists of cement, sand, gravel and water. You will need 5.5 cubic feet of concrete. A standard sidewalk grade of concrete would be 1 part cement, 2 parts sand, 3 parts gravel- so the sidewalk needs 0.91 cu ft of cement- about 87 pounds worth- plus sand and gravel. If you want to buy the premixed bags of concrete (like Sacrete), you will need about 17 of the 40 pounds bags. And you did not ask, but 3 inches is kind of skinny- I would go for at least a 4 inch thick sidewalk.

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9y ago

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How much cement is needed for sidewalk that is 4 inches thick 3 feet wide and 40 feet long the cement is sold for 76 per cubic yard?

To calculate the amount of cement needed, first convert the dimensions of the sidewalk into cubic yards. The sidewalk's volume is ( \frac{4}{12} ) feet thick × 3 feet wide × 40 feet long = 40 cubic feet. Since there are 27 cubic feet in a cubic yard, the volume in cubic yards is ( \frac{40}{27} \approx 1.48 ) cubic yards. At $76 per cubic yard, the total cost would be approximately ( 1.48 \times 76 \approx 112.48 ).


What is the volume of cement needed for a square slab 4 inches thick and 28 by 28 feet?

You will need at least 9.68 cubic yards of cement.


How much sand and cement you need for 2000 bricks?

To calculate the amount of sand and cement needed for 2000 bricks, you first need to determine the volume of one brick. Assuming a standard brick size of 8 inches by 4 inches by 2 inches, the volume of one brick is 64 cubic inches. For 2000 bricks, the total volume would be 128,000 cubic inches. To convert this volume to cubic feet (since sand and cement are typically measured in cubic feet), you would divide by 1728 (12x12x12). This gives you approximately 74.07 cubic feet of sand and cement needed for 2000 bricks.


How much cement is needed for slab 240 Sq ft 6 inches thick?

13 1/3 cubic yards


How much cement is needed for a 1040 square foot slab?

It depends on how deep it is. If it is 6 inches deep, you will need 77 yards.


How much cement for 392 square feet 4 inches deep?

1 sq. feet = 144 sq. inchesSo,392 sq. feet = 144 * 392 sq inches = 56448 sq. inchesVolume of cement needed = 56448 sq inches * 4 inch = 225792 cubic inches225792 cubic inches = 1568 cubic feet


What rock is needed to make cement?

Limestone is refined to make portland cement.


How many bags of cement are needed per fence post?

On average, one bag of cement is needed per fence post.


How many cement bags needed to mix 0.35 or 0.45 WC for one meter cube cement grout?

How many cement bags needed to mix 0.35 or 0.45 WC for one meter cube cement grout?


How many yards of cement needed for a 40x60 patio?

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What is the measurement of a measurement box of cement?

The measurement box of cement is used for measuring quantity of aggregates for mixing with cement, when the mortar/concrete is specified in volume. As the volumetric content of a 50 kgs bag of cement is 35 litres, the measurement box of size equal to 35 litres is made. Generally the inner size of measurement box is 40cm x 35cm x 25cm.


How many cubic feet are needed to pour a 40 ft long by 3 ft wide by 4 inches thick side walk?

To calculate the volume of concrete needed for the sidewalk, first convert the 4 inches thickness to feet (4 inches = 1/3 feet). Then, multiply the length (40 ft) by the width (3 ft) by the thickness in feet (1/3 ft) to get the total volume in cubic feet. This comes out to be 40 ft * 3 ft * 1/3 ft = 40 cubic feet of concrete needed for the sidewalk.