# How many bags of cement in m20 grade of 1m3 of concrete

### How many bags of cement in m20 grade of 1m3 of concrete

#### ■ what is the ratio of m20 concrete

■ introduction :-in this topic we know about how many bags of cement in m20 grade of 1m3 of concrete. we know that concrete is generally two types RCC that is reinforced cement concrete and PCC which is plain cement concrete. in RCC concrete there is a used of Steel and PCC concrete is plain concrete without Steel ,concrete is mixture of cement sand and aggregate in fixed proportion and m20 is standard grade of concrete that is used in both RCC & PCC work

#### ■ what is the ratio of m20 concrete

There are different types of grade of concrete like M 7.5 ,M10, M15, M20, M 25 and so on. But in this topic we have to study about m20 grade of concrete.M Stand for mix and numerical figure 20 is compressive strength of curing time of 28 days. And mix ratio in m20 grade of concrete is (1:1.5:3) in which one part is cement 1.5 part is sand and 3 part is aggregate.

How many bags of cement in m20 grade of 1m3 of concrete

Given volume of concrete = 1m3

Wet volume = 1m3

Dry volume = wet volume×1.54

For calculation of dry volume we multiply 1.54 into wet volume

Dry volume = 1m3×1.54 =1.54 m3

Density of cement = 1440 kg/m3

Mix ratio = 1 : 1.5 :3

Total proportion = 1+1.5+3=5.5

Part of cement = 1/5.5

Part of sand = 1.5/5.5

Part of aggregate = 3/5.5

#### 1)■ bags of cement in m20

Weight = volume× density

Weight = 1/5.5×1.54 m3×1440 kg/m3

Weight = 403.2 kg

1 bags cement = 50 kg

bags of cement = 403.2/50 =8.064

bags of cement in m20 = 8.064

### 7) what is admixture of concrete and its types and its properties

2) volume of sand in cft

1m3 = 35.32 cft

Volume =( 1.5/5.5) × 1.54×35.32

Sand volume = 14.83 cft

3) volume of aggregates in cft

1m3 = 35.32 cft

Volume =( 3/5.5) × 1.54×35.32

Sand volume = 29.67 cft

So quantity of material in m20 grade of 1 cubic metre concrete is following

bags of cement in m20 = 8.064

Volume of sand = 14.83 cft

Volume of aggregates = 29.67 cft