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Both concrete calculators make an allowance for the fact that ballast etc losses volume when mixed to make concrete. Two Concrete Calculator are provided for different concrete mixes: General mix - 1:5 cement:all-in ballast or 1:2½:3½ cement:sharp sand:gravel. and ; Paving mix - 1:3½ cement:all-in ballast or 1:1½:2½ cement:sharp sand:gravel.

May 23, 2017· In general for M25 Grade concrete, which is extensively used for RCC work, cement content of one cubic meter concrete ranges from 300 kg to 350 kg. Each bag of cement weighs 50 kg and so 6 to 7 bags .

How many small bags of ballast would I need to make a metre of concrete. How many small bags of ballast would I need to make a mtr of concrete. Hiw much ballast and cement will i need for a 24 cubic metre shed base. Sorry didnt realise this was on here its a 12ft by 6ft concrete slab i was just typing things on phone then got distacted didnt...

FULLER'S RULE states "mixing of a total of 42 volumes of cement, sand and gravel will produce a 27 volumes of concrete". The unit for this one is in cubic foot. Conversion of 1.0 meter = 3.281 ft, hence (42/27cu.ft) x (3.281ft/m)^3=54.94 or rounded off to a good number of 55. That is how the constant of 55 comes from. Hope it helps. Tumugon I ...

Concrete Mix yield one 20kg bag will cover an area of 1.1m2 to a depth of approximately 10mm. or 108 x 20kg bags equates to one cubic metre of mixed concrete. TyPicAL ProDUcT PErForMAncE Compressive Strength (MPa): BAGS rEqUirED For THE joB: Square Mtrs Number of 20kg Bags 10 82 108 9 74 98 8 66 88 7 58 76 6 50 66 5 42 54 4 34 44 3 26 34 2 18 ...

With the given mix ratio, cured concrete is about 22 percent cement by weight. Thus, a 3,600-pound cubic yard contains about 800 pounds of cement, which comes out to 10 of the 80-pound bags of cement or 13.3 of the 60-pound bags. Pure cement, sand and crushed rock all have about the same density, so a block of pure cement measuring 1 cubic yard ...

Dec 30, 2011· 1 Cement 2.5 Sand 4 Aggregate is OK for fence posts. 13bags of cement per cubic metre. The more cement the more costly of course so don't over do it. Note: These are 20kg bags of General Purpose cement. 8 Comments

To make 1 cubic metre of concrete you will need: 9,2 bags cement + 0,60 cubic metres sand + 0,60 cubic metres stone. 1.2 small batches: use containers such as buckets, drums or tins. Use the same size of container for measuring all the materials in a batch. Use only common cement complying with SANS 50197 cement concrete sand stone 1 bag 13/

Total Bag Weight 1180 kg Calculated at 2160 kg per 1m³ - Allow extra for waste A concrete slab 1000 mm X 1000 mm at a depth of 100 mm, has a volume of 0.1 m³ = 10.8 x 20 kg bags

Dec 21, 2016· Therefore volume of 1 bag cement = 50/1440 =0.0347 cum. ∴ No. of cement bags required in 1 cubic meter = 0.2171/0.0347 = 6.25 bags.

Mix (as per concrete use) No. 20kg bags of cement cubic metres (m3) of sand cubic metres (m3) cement sand stone of stone 1 2 3 16 0.5 0.8 1 2.5 4 13 0.5 0.8 1 3 5 11 0.5 0.9 *Slab thickness in mm. 3. Decide whether to use: (a) Premix concrete from a readymix supplier (b) Bagged cement, sand and stone (c) Bagged concrete

Example calculation Estimate the quantity of cement, sand and stone aggregate required for 1 cubic meter of 1:2:4 concrete mix. Ans. Materials required are 7 nos. of 50 kg bag of cement, 0.42 m 3 of sand and 0.83 m 3 of stone aggregate.

Today On Building Contractor Secrets i would love to make it easy for those on site thinking about How many wheelbarrows of sand, granite and bags of cement makes up 1 cubic meter (1m³) of Concrete. This is going to be very useful because i am also going to let you know the value of one Head Pan.

With a 1:3:6 mix for 100 cubic meter of concrete you would need 420 x 50kg bags of cement, 56 cubic meters of fine aggregate (sand and gravel passing through a 5mm sieve) and 79 cubic metres of coarse aggregate (gravel retained by a 5mm sieve).

Density of concrete = 2400 kg/cum. So, 1 bag of cement produces = 400/2400 = 0.167 cum. No. of bags required for 01 cum of concrete = 1/0.167 = 5.98 bags ~ 6 bags. From above, if the concrete mix is 1:2:4, to get a cubic meter of concrete we require. 1.Cement = 6 bags = 300 kgs. 2.Fine Aggregate = 115/0.167 = 689 kg

If I break the weights down per cubic yard of concrete, it comes to: 1. Cement = 624 pounds. 2. Stone = 1833 pounds. 3. Sand = 1249 pounds. There are 94 pounds of cement in a "sack or bag" of cement. That means 4000 psi concrete is also called a 6.5 sack or bag mix. What is the concrete mix ratio of 30MPa concrete?

Our concrete calculator provides you an easy way to calculate concrete volume and estimated cost of concrete slabs, footers, walls, columns, steps, stairs, curbs and gutters in cubic feet, cubic yards, and cubic meters and inches. It makes your construction project planning and budgeting more accurate.

From above, if the concrete mix is 1:2:4(by volume), to get a cubic meter of concrete we require. Cement = 6 bags = 300 kgs. Fine Aggregate = 115/0.167 = 689 kgs = 15.2 cft; Coarse Aggregate = 209/0.167 = 1252 kgs = 30.5 cft; Water = 300/0.55 (w/c) = 165 kg/liter. Likewise other concrete mix with varying proportions and materials with different ...

On average it will take 90 40lb bags, 60 60lb bags, or 45 80lb bags to fill one cubic yard of concrete. Add 5%-10% additional material to account for settling, spillage, and waste. This will ensure you can complete your project in a single pour without needing to get more concrete .

For 1 cubic meter, this would equate to approximately, 350kg cement, 875kg sand, 1050kg coarse aggregate (20-5mm) and 180 litres of water. So for 0.15 of a cubic metre you would need 52.5kg cement, 131.25kg sand, 157.50kg aggregate (20-5mm size) and 27 litres of water.

Concrete Mix - to build either a 4 inch or 6 inch slab; Mortar Mix - to lay either 8 inch x 2 inch x 4 inch bricks or 8 inch x 8 inch x 16 inch blocks at a 3/8 inch joint; Fast-Setting Concrete - to set a post; Base Coat Stucco & Finish Coat Stucco; Veneer Stone Mortar; QUIKWALL ® Surface Bonding Cement

Required Cement Quantity for 1 cum = (Cement Part / Total Parts) x 1.55 = 1/(1+2+4) x 1.55 = 0.221 cum Unit weight of cement = 1440 kg / cum. Therefore required cement = 1440 x 0.221 cum = 318.24 Kg or (318.24/50) = 6.37 Bags. Cement Bag Per Cubic Metre Concrete Table – Nominal Mix

To make 1 cubic metre of concrete you will need: 5,8 bags cement + 0,65 cubic metres sand + 0,65 cubic metres stone. Medium-strength concrete suitable for: house floors, footpaths and driveways To make 1 cubic metre of concrete you will need: 7,7 bags cement + 0,62 cubic metres sand + 0,62 cubic metres stone.

Aug 03, 2018· Numbers of Bags in 1 cubic metre cement = 28.8 Bags Specific gravity of cement = 3.15 Grade of cement = 33, 43, 53 Where 33, 43, 53 compressive strength of cement in N/mm2
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