Need to know how many bags of cement I will need for a 20x10 space?
I would recomend your flat work not be thinner than 3.5 ". A 20 x 12" would require 3 yards of concrete... if you just use sand and cement, I don't think you will be happy with the results.
@ 1:5 mix, 15 cement and 71 25kg bags of sand (1,175kgs)
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.
10
in india, for m-20 cement concrete, for 1 cu.m.- 3.47 quntl cement-0.45 cu.m. sand( fine aggr.)- and 0.90 cu.m. chips( course aggr.), that means 6.94 or 7 of 50 kgs.cement bags so for M-25, for 1 cu.m. 4.03 qntls cement- 0.45 sand- 0.90 cu.m. chips, so 8.06 cement bags
100
That depends on the size of your bags! My bags are 25 kg (20 l) 5 inches is 120 mm I would use 2 bags of cement and 4 bags of sand and 6 bags of gravel (well I do not buy my gravel in bags but the equivalent volume). I would mix with as little water as necessary to get a pourable consistency.
how many bags of cement for a pad 4x7x4 inches thick
You will need about 7 25kg bags of cement.
@ 1:5 mix, 15 cement and 71 25kg bags of sand (1,175kgs)
If a 20kg bag of cement=0.1m3 with 100 lots o 0.01 to 1m3 then you will need 12.5 bags per m3. So you need approx 11.5m3 of sand and 144 bags of cement (144 x 0.01 = 1.44m3) to give you a total of 12.94m3
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.
10
in india, for m-20 cement concrete, for 1 cu.m.- 3.47 quntl cement-0.45 cu.m. sand( fine aggr.)- and 0.90 cu.m. chips( course aggr.), that means 6.94 or 7 of 50 kgs.cement bags so for M-25, for 1 cu.m. 4.03 qntls cement- 0.45 sand- 0.90 cu.m. chips, so 8.06 cement bags
100
7 bags per 1000 on mortar mix and half a truckload of "mortar" sand aught to do it.
The answer will depend on the size of the cement bags! The answer will depend on the size of the cement bags! The answer will depend on the size of the cement bags! The answer will depend on the size of the cement bags!
6 Bags of masons lime