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An average 1:2:3 mix contains one part cement, two parts sand and three parts gravel. To make 1 cubic yard of concrete, you'd need seven 94-pound bags of cement, about 1/2 cubic yard of sand and just over 3/4 cubic yard of gravel. The amount of water you use depends on how wet the sand is.

We have 1 cum of concrete with ratio 1 : 2 : 4 {That means 1 cement : 2 sand : 4 aggregate) 1 + 2 + 4 = 7. 7 = 1 cum. Cement = 1 cum / 7 = 0.143 cum (wet volume) (we know 1 cum of cement = 1440 kg) 0.143 cum = 0.143 x 1440 = 205.92 kg (we know 1 cement bag = 50 kg)

Considering voids in sands, we assume that materials consists of 60% voids. That is, for 1m 3 of wet cement mortar, 1.6m 3 of materials are required. 2. Now we calculate the volume of materials used in cement mortar based on its proportions. Let's say, the proportion of cement and sand in mortar is 1:X, where X is the volume of sand required.

Aug 03, 2018· Where 33, 43, 53 compressive strength of cement in N/mm2. M-20 = 1 : 1.5 : 3 = 5.5, (Cement : Sand : Aggregate) Some of Mix is – 5.5. Where, M = Mix 20 = Characteristic Compressive strength. Consider volume of concrete = 1m3. Dry Volume of Concrete = 1 x 1.54 = 1.54 m3 (For Dry Volume Multiply By 1.54) Now we start calculation for find Cement ...

There are two main ways to design the concrete mix. Design mix method :- In this method, materials are proportioned based on the procedure and rules given in IS 456 (2000) and IS 10262) code . In this method, cement, sand and aggregates are always batched in terms of weight, and concrete can be designed for different environmental conditions and different needs.

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.

· To calculate the individual quantity of cement, sand and aggregate and water in 1 cum of concrete we assuming the nominal mix design concrete of grade M20. Ø As per IS 456:2000 in M20 grade of concrete the proportion of Cement, Sand and Aggregate is,

The dry volume of concrete mixture is always greater than the wet volume. The ratio of dry volume to the wet volume of concrete is 1.54. So 1.54 Cum of dry materials (cement, sand and aggregate) is required to produce 1 Cum of concrete. Volume of Cement required = 1/(1+2+4) X 1.54 = 1/7 X 1.54 = 0.22 Cum

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 Estimating how much cement, sand and stone to order The Ready Reckoner for concrete is a ...

Dec 21, 2016· To achieve 1 cum output, we need 1/0.67 = 1.49 say 1.50 cum dry mix. Now add the wastage of 2%, i.e (1.50 + 0.02) = 1.52 cum. Volume of cement = (cement/cement+sand+aggregate) × Total material

Cement = 50 kgs, Sand = 230 kgs and Water = 56 kgs. Total weight of the mixture = 50+230+56 kgs = 336 kgs. Density of Cement sand mortar = 2200 kg/cum (Approximately) So, Amount of plaster mortar (1: 4) yielded with one Bag of cement (50 kgs) = 336/2200 = 0.153 cum . Step-3: Calculate Plaster volume required

Jun 30, 2017· = 100 m 2 x 0.012m = 1.2 m 3 (This is wet volume of cement mortar (after mixing water) but we need dry volume. To get dry volume consider 35% bulking of sand and 20% wastages = 1.2 m 3 x (1+0.2+0.35) (Rather than 35% sand bulkage and 20% wastage you can add 1.54 as constant)

May 17, 2017· Detailed explanation for No. of bags required for 1 cum of cement. Calculation of Volume of Sand (Fine Aggregate) in 1m 3 of Concrete:-The following steps are followed to find the quantity of sand in 1m 3 of concrete. Volume of Sand = Sand ⁄ Cement+Sand+Aggregate x 1.57. Sand usually consists of moisture content.

Dec 30, 2011· 1 Cement 2 Sand 3 Aggregate (gravel) is too strong. 16bags (costly) 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.

3. Air content of 1 percent has been assumed. 4. For gravel aggregates decrease cement by 5 percent, increase sand by 2 percent and coarse aggregate in proportion to fine aggregate in mix.

Dec 21, 2016· To achieve 1 cum output, we need 1/0.67 = 1.49 say 1.50 cum dry mix. Now add the wastage of 2%, i.e (1.50 + 0.02) = 1.52 cum. Volume of cement = (cement/cement+sand+aggregate) × Total material

Considering voids in sands, we assume that materials consists of 60% voids. That is, for 1m 3 of wet cement mortar, 1.6m 3 of materials are required. 2. Now we calculate the volume of materials used in cement mortar based on its proportions. Let's say, the proportion of cement and sand in mortar is 1:X, where X is the volume of sand required.

Concrete mix ratio: The strength of concrete mixture depends on the ratio in which these four ingredients are mixed. Concrete mix ratio of 1:3:3 - On mixing 1 part cement, 3 parts sand with 3 parts aggregate produces concrete with a compressive strength of 3000 psi.

How heavy is Portland cement? Calculate how many Metric tonnes ( t ) of Portland cement are in 1 cubic meter ( 1 m3 ). Specific unit weight of Portland cement - amount properties converter for conversion factor exchange from 1 cubic meter m3 equals = 1.51 Metric tonnes t exactly for the masonry material type. To convert Portland cement measuring units can be useful when …

1 cubic yard. Enter number of bags of Portland cement or fraction of bag. Example: One and half bag, Enter 1.5 Round off answer to next even higher figures. This calculator is intended for approximate guidance. Working With Concrete Tips Hand Mixing Only use clean water, sand and gravel. Aim for a mix of 1 part cement, 2-1/4 part sand and 3 ...

We have 1 cum of concrete with ratio 1 : 2 : 4 {That means 1 cement : 2 sand : 4 aggregate) 1 + 2 + 4 = 7. 7 = 1 cum. Cement = 1 cum / 7 = 0.143 cum (wet volume) (we know 1 cum of cement = 1440 kg) 0.143 cum = 0.143 x 1440 = 205.92 kg (we know 1 cement bag = 50 kg)

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