How much cement sand & aggregate required for m25 concrete, hi guys in this article we know about how much cement sand & aggregate required per 1m3 of m25 grade of concrete & also know about how much cement required for M25 concrete & how to calculate cement sand aggregate required for 1 cubic metre of m25 grade of concrete.

**Different grade of concrete** like M25,M20,M15,M10,M7.5 & M5 are nominal mix grade of concrete in which M represent mix and numerical figure 25, 20, 15,10,7.5 & 5 are characteristics of compressive strength of concrete gain strength time period of 28 days after curing.

● Table 1 :- different grade of concrete and their compressive strength in N/mm2.

● **Understanding grade of concrete**:- Grades of concrete are defined by its strength and composition of the concreting material cement sand and aggregate and the minimum strength the concrete should have following 28 days of initial construction. The grade of concrete is understood in measurements of N/mm2 or MPa, where M stands for mix and the MPa denotes the overall characteristics of compressive strength.

● **concrete grade types** :- there are three types of concrete grade 1) normal grade of concrete, 2) standard grade of concrete& 3) high strength concrete grade. Normal grade of concrete are based on nominal mix ratio of cement, sand and aggregate have comparatively lower compressive strength than standard grade of concrete.

**Normal grade of concrete** are M25,M20,M15,M10,M7.5 & M5 generally based on nominal mix proportion of cement sand and aggregate.

**Standard grade of concrete** are M25,M30,M35,M40,& M45 are made according to design mix have higher compressive strength than normal grade of concrete.

**High strength concrete grade** are M50,M55,M60,M65, & M70 are made according to design mix have higher compressive strength than normal and standard grade of concrete.

According to nominal mix concrete IS456 code book suggest that minimum grade of concrete is M20 which are used for RCC work and M5,M7.5, M10 and M15 are not used for RCC work, generally lower grade of concrete are used in mass concreting, formation of heavy wall, ground filling, retaining wall formation and all PCC work.

**standard grade of concrete** and high strength concrete are used to construction of high rise building, industrial building, commercial building, residential building, apartment, Bridge, dams and heavy structure.

● Table 2 :- different grade of concrete and its types

● cement sand and aggregate mix ratio in concrete :- there are two types of mix ratio in in different grade of concrete 1) nominal mix & 2) design mix.

**Nominal mix concrete IS456 code book** suggest lower and normal grade of concrete like M25,M20,M15,M10,M7.5 & M5 have fix cement sand and aggregate ratio.

**Design mix concrete IS 456 code** book suggest that standard and high strength concrete grade are made according to different types of considering factor like load bearing structure, earthquake resistance, bending moment of column, Environmental factors and quality of cement sand and aggregate.

● Table 3:- grade of concrete types, it’s mix ratio types and mix ratio of concrete.

**How much cement, sand and aggregate are required for 1m3 of m25 concrete**

**M25 concrete ratio:-** M stand for mix and numerical figure 25 is compressive strength of concrete is 25N/mm2 for curing time of 28 days and M25 concrete ratio is 1 : 1 : 2, mixture of cement, sand and aggregate in which one part is cement, 1 part is sand and 2 part is aggregate or stone mix with water.

**M25 concrete mix ratio:-** M stand for mix and numerical figure 25 is compressive strength of concrete is 25N/mm2 for curing time of 28 days. **M25 concrete mix ratio** is 1:1:2, made of mixture of cement, sand and aggregate in which one part is cement, 1 part is sand and 2 part is aggregate or stone mix with water.

**1m3 m25 concrete weight**: unit weight of RCC is 2500kg/m3 and PCC is 2400kg/m3, so weight of 1m3 M25 concrete is 2500kgs when used as reinforced cement concrete and 2400kgs in plain cement concrete.

Calculating quantity of cement, sand and aggregate required for 1 cubic metre of m25 concrete we have given following:-

Wet volume of concrete = 1m3

mix ratio for m25 concrete = 1:1:2

We have to do following calculating steps:-

● **Step 1 :-** we have wet volume of concrete is equal to 1 cubic metre (1m3), but when we calculate actual quantity of dry ingredient cement, sand and aggregate of concrete we have to calculate dry volume of concrete.

For converting wet volume to dry volume of concrete we will multiply 1.54 in wet volume of concrete, now question is why we multiply 1.54 in wet volume of concrete. When mixture of cement, sand and aggregate mix with water, the number of air voids present in dry ingredient are evaporated in wet condition when mix with water so their volume is decreased by 54% in wet condition, so dry volume of concrete is increase by 54% of wet volume.

Dry volume of concrete is equal to 1× 1.54 = 1.54 m3 ( cubic meter)

● **step 2 :-** m25 nominal mix ratio is 1:1:2,in which one part is cement, one part is sand & two part is aggregate, then total mix proportion is equal to 1+1+2 = 4, and part of cement is equal to 1/4, part of sand is equal to 1/4 & part of aggregate is equal to 2/4

**How much cement required for M25 concrete**

● **step 3:-** We have dry volume of concrete is equal to 1.54 m3, part of cement in mix = 1/4 and density of cement = 1440 Kg/m3

**How much cement required for M25 concrete in cubic metre**

● **step 4:**– calculate cement required for 1 cubic metre of M25 concrete in cubic metre is equal to = 1/4 × 1.54 m3 = 0.385 m3

**Ans.** :- 0.385 m3 ( cubic meter) cement required for 1 cubic metre of M25 concrete.

**How much cement required for M25 concrete in Kgs**

● **step 5:-** calculate cement required for 1 cubic metre of M25 concrete in Kgs ( kilogram) is equal to = 1/4 × 1.54 m3 × 1440 Kg/m3 = 554 Kgs

**Ans. :-** 554 Kgs quantity of cement required for 1 cubic metre of M25 concrete

**How many cement bags required for M25 concrete**

● **step 6:-** we know that 1 bag cement weight = 50 kgs,calculate cement bags required for 1 cubic metre of M25 concrete is equal to = 1/4 × 1.54 m3 × 1440 Kg/m3/50 = 11.08 = 11 bags cement

**Ans. :-** 11 bags of cement required for 1 cubic metre of M25 concrete.

Now question is how much cement required for 1m3 of M25 concrete their answer is following:-

**Ans. :-** 11 bags (0.385 m3, 554 kgs) cement are required for 1 cubic metre of M25 concrete.

**How much sand required for M25 concrete**

We have given dry volume of concrete is equal to 1.54 cubic metre and part of sand in concrete mix is equal to 1/4, density of sand is equal to 1620 Kg/m3 and one cubic metre is equal to 35.3147 cu ft

**How much sand required for M25 concrete in cubic metre**

● **step 7 :**– calculate sand required for 1 cubic metre of M25 concrete in cubic metre is equal to 1/4 × 1.54 = 0.385 m3

**Ans. :-** 0.385 m3 quantity of sand is required for 1 cubic metre of M25 concrete

**How much sand required for M25 concrete in Kgs**

● **step 8 :-** calculate sand required for 1 cubic metre of M25 concrete in kgs ( kilogram) is equal to 1/4 × 1.54m3 × 1620 Kg/m3 = 624 Kgs

**Ans. :-** 624 Kgs quantity of sand is required for 1 cubic metre of M25 concrete

**How much sand required for M25 concrete in cft**

● **step 9 :-** calculate sand required for 1 cubic metre of M25 concrete in cft (cubic feet) is equal to 1/4 × 1.54m3/35.3147 × 1620 Kg/m3 = 18 cft

**Ans.** :- 18 cft quantity of sand is required for 1 cubic metre of M25 concrete.

Now question is how much sand required for 1m3 of M25 concrete their answer is following:-

**Ans. :-** 18 cft (0.385 m3, 6244 kgs) sand are required for 1 cubic metre of M25 concrete.

**How much aggregate required for M25 concrete**

We have given dry volume of concrete is equal to 1.54 cubic metre and part of aggregate in concrete mix is equal to 2/4, density of aggregate is equal to 1550 Kg/m3 and one cubic metre is equal to 35.3147 cu ft

**How much aggregate required for M25 concrete in cubic metre**

● **step 10 :-** calculate aggregate required for 1 cubic metre of M25 concrete in cubic metre is equal to 2/4 × 1.54 = 0.77 m3

**Ans. :-** 0.77 m3 quantity of aggregate is required for 1 cubic metre of M25 concrete

**How much aggregate required for M25 concrete in Kgs**

● **step 11 :-** calculate aggregate required for 1 cubic metre of M25 concrete in kgs ( kilogram) is equal to 2/4 × 1.54m3 × 1550 Kg/m3 = 1194 Kgs

**Ans.** :- 1194 Kgs quantity of aggregate is required for 1 cubic metre of M25 concrete

**How much aggregate required for M25 concrete in cft**

● **step 12 :-** calculate aggregate required for 1 cubic metre of M25 concrete in cft (cubic feet) is equal to 2/4 × 1.54m3/35.3147 × 1550 Kg/m3 = 36 cft

**Ans. :-** 36 cft quantity of aggregate is required for 1 cubic metre of M25 concrete.

Now question is how much aggregate required for 1m3 of M25 concrete their answer is following:-

**Ans. :-** 36 cft (0.77 m3, 1194 kgs) aggregate are required for 1 cubic metre of M25 concrete.

Now question is how much cement sand and aggregate required for 1 cubic metre of m25 concrete? Their ans will be following

● **Ans**. 11 bags (0.385 m3, 554 kgs) cement, 18 cft (0.385 m3, 6244 kgs) sand & 36 cft (0.77 m3, 1194 kgs) aggregate are required for 1 cubic metre of M25 concrete.

● **Table 4 :**– cement quantity in bags and kg and aggregate and sand quantity in cubic metre,cubic feet and kg

**Weight of sand and aggregate required for 50 kg cement bag for m25 concrete grade**

1) weight of sand & aggregate required for 50 kg cement bag for M25 grade of concrete

As we find 11 bags of cement,624 kgs sand & 1194 kgs aggregate for 1 cubic metre of m25 grade of concrete.

Hance 11 bags cement = 624 kgs sand

For 1 bag of cement = 624/11= 57 kgs sand

Hance 11 bags of cement = 1194 kgs aggregate

For 1 bag of cement = 1194/11 = 109 kgs aggregate

● **Ans. :-** 57 kgs sand & 109 kgs aggregate are required per 50 kg of cement bag for m25 grade of concrete.

**Volume of sand & aggregate required for 50 kg cement bag for M25 grade of concrete**

As we find 11 bags of cement,18 cft sand & 36 cft aggregate for 1 cubic metre of m25 grade of concrete.

Hance 11 bags cement = 18 sand

For 1 bag of cement = 18/11= 1.64 cft sand

Hance 11 bags of cement = 36 kgs aggregate

For 1 bag of cement = 36/11 = 3.27 cft aggregate

● Ans. :- 1.64 cft sand & 3.27 cft aggregate are required per 50 kg of cement bag for m25 grade of concrete.

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Sumer Singh says

It’s very helpful for us

Thanks so much