**Concrete Mix Ratio Calculator:** Our daily life in construction industries, tell us many time about **What is a Beauty of Concrete Mix Ratio?** Because now a days, most of architectural marvelous project come in reality, with the beauty of concrete technology.

We are using this formula of concrete mix ratio for many proposes in construction industries. There are many terms like, concrete mix ration for foundations or concrete mix ratio by volume, etc.

## How Much Concrete Mix Ratio Do I Need ???

Today here we see some of interesting facts and figures about concrete mix ratio specifications. As a person of construction industries, i think this beautifully carved out concrete specification texture, in terms of facts and figures, you like it.

### Strong Concrete Mix Ratio for Concrete Grade.

Every Concrete mix have a particular grade. So, what is a Concrete Grade? or What is the meaning of M15 M20 M10 concrete? Here is the simplest term of your question: *M10 M15 M20 etc. are all grades of concrete in the Indian Standard issued by Bureau of Indian Standards. The ‘M’ denotes ‘Mix’ followed by a number representing the compression strength of that mix in N/mm^2. A mix is a specific ratio in which cement, fine(sand) and coarse aggregate(gravel) are mixed. *

- M5 = 1:4:8
- M10= 1:3:6
- M15= 1:2:4
- M20= 1:1.5:3
- M25= 1:1:2

### Clear Mix Ratio Cover to Main Reinforcement.

Concrete cover for reinforcement is required to protect the rebar against corrosion and to provide resistance against fire. The thickness of cover depends on environmental conditions and type of structural member. The minimum thickness of reinforcement cover is indicated in the drawings, or shall be obtained from the relevant code of practice. Below are the specifications for reinforcement cover for different structural members in different conditions.

- FOOTINGS : 50 mm
- RAFT FOUNDATION.TOP : 50 mm
- RAFT FOUNDATION.BOTTOM/SIDES : 75 mm
- STRAP BEAM : 50 mm
- GRADE SLAB : 20 mm
- COLUMN : 40 mm
- SHEAR WALL : 25 mm
- BEAMS : 25 mm
- SLABS : 15 mm
- FLAT SLAB : 20 mm
- STAIRCASE : 15 mm
- RET. WALL : 20/ 25 mm on earth
- WATER RETAINING STRUCTURES : 20/30 mm.

### Concrete Mix Ratio Weight Of Rod Per Meter Length:

Every Concrete Mix Ratio have their percentage of steel and available space to place those steel bars. You can check Reinforcement or steel rod bars weight per meter table at Here.

#### Dia Weight Per Meter.

- 6mm = 0.222Kg
- 8mm = 0.395 Kg
- 10mm = 0.616 Kg
- 12mm = 0.888 Kg
- 16mm = 1.578 Kg
- 20mm = 2.466 Kg
- 25mm = 3.853 Kg
- 32mm = 6.313 Kg
- 40mm = 9.865 Kg
- 1bag cement-50kg
- 1feet-0.3048m
- 1m-3.28ft
- 1sq.m-10.76sq.f ¬t
- 1cu.m-35.28cu.f ¬t
- 1acre-43560sq.f ¬t
- 1cent-435.6sq.f ¬t
- 1hectare-2.47ac ¬re
- 1acre-100cent-4 ¬046.724sq.m
- 1ground-2400sq. ¬ft
- 1unit-100cu.ft- ¬2.83cu.m 1square-100sq.f ¬t

### 1 M Length Steel Rod I Its Volume.

V=(Pi/4)*Dia x DiaX L=(3.14/4)x D x D X 1 (for 1m length) Density of Steel=7850 kg/ cub meter Weight = Volume x Density=(3.14/4)x D x D X 1×7850 (if D is in mm ) So = ((3.14/4)x D x D X 1×7850)/(1000×1000) = Dodd/162.27

### Concrete Mix Ratio For Design Mix:

**Concrete Mix ratio design** is a process of selecting suitable ingredients and determining their relative proportions with the objective of producing **concrete** of having certain minimum workability, strength and durability as economically as possible.

#### What is M10 Concrete Mix? ( 1 : 3.92 : 5.62)

- Cement : 210 Kg/ M 3
- 20 mm Jelly : 708 Kg/ M 3
- 12.5 mm Jelly : 472 Kg/ M 3
- River sand : 823 Kg/ M 3
- Total water : 185 Kg/ M 3
- Fresh concrete density: 2398 Kg/M 3

#### What is M20 Concrete Mix? ( 1 : 2.48 : 3.55)

- Cement : 320 Kg/ M 3
- 20 mm Jelly : 683 Kg/ M 3
- 12.5 mm Jelly : 455 Kg/ M 3
- River sand : 794 Kg/ M 3
- Total water : 176 Kg/ M 3
- Admixture : 0.7%
- Fresh concrete density: 2430 Kg/ M 3

#### What is M25 Concrete Mix? ( 1 : 2.28 : 3.27)

- Cement : 340 Kg/ M 3
- 20 mm Jelly : 667 Kg/ M 3
- 12.5 mm Jelly : 445 Kg/ M 3
- River sand : 775 Kg/ M 3
- Total water : 185 Kg/ M 3
- Admixture : 0.6%
- Fresh concrete density: 2414 Kg/ M 3
- Note: sand 775 + 2% moisture, Water185 -20.5 = 164 Liters,
- Admixture = 0.5% is 100ml

#### What is M30 Concrete Mix? ( 1 : 2 : 2.87)

- Cement : 380 Kg/ M 3
- 20 mm Jelly : 654 Kg/ M 3
- 12.5 mm Jelly : 436 Kg/ M 3
- River sand : 760 Kg/ M 3
- Total water : 187 Kg/ M 3
- Admixture : 0.7%
- Fresh concrete density: 2420 Kg/ M 3
- Note: Sand = 760 Kg with 2% moisture
- (170.80+15.20)

#### What is M35 Concrete Mix? ( 1 : 1.79 : 2.57)

- Cement : 410 Kg/ M 3
- 20 mm Jelly : 632 Kg/ M 3
- 12.5 mm Jelly : 421 Kg/ M 3
- River sand : 735 Kg/ M 3
- Total water : 200 Kg/ M 3
- Admixture : 0.7%
- Fresh concrete density: 2400 Kg/ M 3
- Note: sand = 735 + 2%, Water = 200- 14.7 = 185.30,
- Admixture = 0.7%

#### What is M40 Concrete Mix? ( 1 : 1.67 : 2.39)

- Cement : 430 Kg/ M 3
- 20 mm Jelly : 618 Kg/ M 3
- 12.5 mm Jelly : 412 Kg/ M 3
- River sand : 718 Kg/ M 3
- Water Cement ratio : 0.43
- Admixture : 0.7%
- Note: Sand = 718 + Bulk age 1%

#### What is M45 Concrete Mix? ( 1 : 1.58 : 2.26)

- Cement : 450 Kg/ M 3
- 20 mm Jelly : 626 Kg/ M 3
- 12.5 mm Jelly : 417 Kg/ M 3
- River sand : 727 Kg/ M 3 + Bulk age 1%
- Water Cement ratio : 0.43
- Admixture : 0.7%

#### What is M50 Concrete Mix? ( 1 : 1.44 : 2.23)

- Cement : 450 Kg/ M 3
- 20 mm Jelly : 590 Kg/ M 3
- 12.5 mm Jelly : 483 Kg/ M 3
- River sand : 689 Kg/ M 3 + Bulk age 12%
- Water Cement ratio : 0.36 (188 Kg)
- Admixture : 1.20%3
- Micro silica : 30 Kg
- Super flow 6.7% of cement.

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