That depends on what depth you want the concrete !
To determine how much cement you need for a 20x20 foundation, first calculate the volume of the foundation in cubic feet. If the foundation is, for example, 4 inches deep, convert that to feet (4 inches = 1/3 feet), giving you a volume of 20 x 20 x (1/3) = approximately 133.33 cubic feet. Since concrete is typically measured in cubic yards, divide that by 27 (cubic feet in a cubic yard), resulting in about 4.94 cubic yards of concrete needed. For cement, you'll need about 1/3 of that volume in cement, which is roughly 1.65 cubic yards, but it's best to consult a concrete mix calculator for precise ratios based on your specific mix design.
you wouldn't even need 1 bag of cement and there are also lots of variables, thickness, mix ratio, bag sizes?
5 or 6. An 80 lb. bag of ready mix concrete will make about 1/2 cubic foot of concrete. A 94 lb. bag of portland cement mixed with 1 1/2 cu. ft of stone (coarse gravel) and 1 cu. ft. of sand will make 3 cubic feet of concrete or 6 times as much. (this is a common 1:2:3 mix) Quikcrete ready mix is often made with 1 part cement, and 2 1/2 parts each sand and stone. A 1:1 1/2: 3 mix is a stronger mix but you get less volume, at 5 1/2 cubic feet per bag of cement.
The amount of cement needed for 1 cubic meter of concrete blocks typically ranges between 300 to 400 kg, depending on the specific mix design and desired strength. A common concrete mix ratio for blocks is 1 part cement, 2 parts sand, and 4 parts gravel, which translates to about 350 kg of cement per cubic meter. However, it's essential to consider factors like the type of blocks and local material properties for precise calculations. Always refer to local construction guidelines for specific recommendations.
The number of 6-inch blocks that one bag of cement can produce depends on the mix ratio and the size of the blocks. Typically, one standard 94-pound bag of cement can create about 8 to 12 concrete blocks, depending on the specific mix and the density of the blocks. For accurate calculations, it’s best to refer to specific mixing ratios and local guidelines.
equal parts to mix
it depends on the type of mix and water cement ratio.
That would depend on how thinly you spread it.
19,000lbs of rock. 1340 sand. 338 cement.
8 kilos sand to the 2 kilos cement.
Yes you can. Substitute 20% of the water for the cement mix with latex paint (Water based paint) and mix slow and thorough. Don't over used too much paint it will damage the integrity of the concrete.
4 bags of 50 kg each= 200 kg of cement.
The answer is, remarkably, 6. Answer: "6 sack" or "6 bag mix" has six bags of cement per cubic yard of concrete mix. Since each sack/bag contains 94 lbs of dry cement, this equals 564 lbs of cement per cubic yard of concrete.
If you have added too much water to your mix just add more sand and cement ;but do this right away.
A good mix is four or five of sand to one of cement.
The mix won't set properly, and the lifespan of your cement form will be shortened considerably.
cement/ concrete is made with water, cement mixture and sand. After all of this is added to the right amount, you mix, mix, mix!! Then bofore it drys, pour it ontop the location desired