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Concrete Mix designs for M15,M20,M25,M30 and M35
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Answer / sabir
M20=50-138-185 (kg) 22.5ltr water
M25=50-105-147 (kg) "
M30=50- 81-120 (kg) 21ltr water
M35=50- 70-140 (kg) 19ltr water
M40=50- 66-116 (kg) 17.5ltr water
| Is This Answer Correct ? | 22 Yes | 2 No |
Answer / manoj kumar purohit
M15-1:2:4(nominal mix)
M20-1:1.5:3 (nominal mix)
M25-1:1:2 (nominal mix)
M30&M35-Depend upon mix design (compresive strength of concrete in 28 days it is 28N/mm2 & 4N standard deveation)
| Is This Answer Correct ? | 16 Yes | 2 No |
Answer / satyavir singh
as per latest IS codes and Cement technology minimum 33MPa 28days
then approximate mix is follows
Design Mix:
M10 ( 1 : 3.92 : 5.62)
Cement : 210 Kg/ M3
20 mm Jelly : 708 Kg/ M3
12.5 mm Jelly : 472 Kg/ M3
River sand : 823 Kg/ M3
Total water : 185 Kg/ M3
Fresh concrete density: 2398 Kg/M3
M20 ( 1 : 2.48 : 3.55)
Cement : 320 Kg/ M3
20 mm Jelly : 683 Kg/ M3
12.5 mm Jelly : 455 Kg/ M3
River sand : 794 Kg/ M3
Total water : 176 Kg/ M3
Admixture : 0.7%
Fresh concrete density: 2430 Kg/ M3
M25 ( 1 : 2.28 : 3.27)
Cement : 340 Kg/ M3
20 mm Jelly : 667 Kg/ M3
12.5 mm Jelly : 445 Kg/ M3
River sand : 775 Kg/ M3
Total water : 185 Kg/ M3
Admixture : 0.6%
Fresh concrete density: 2414 Kg/ M3
Note: sand 775 + 2% moisture, Water 185 -20.5 = 164 Liters,
Admixture = 0.5% is 100ml
M30 ( 1 : 2 : 2.87)
Cement : 380 Kg/ M3
20 mm Jelly : 654 Kg/ M3
12.5 mm Jelly : 436 Kg/ M3
River sand : 760 Kg/ M3
Total water : 187 Kg/ M3
Admixture : 0.7%
Fresh concrete density: 2420 Kg/ M3
Note: Sand = 760 Kg with 2% moisture (170.80+15.20)
M35 ( 1 : 1.79 : 2.57)
Cement : 410 Kg/ M3
20 mm Jelly : 632 Kg/ M3
12.5 mm Jelly : 421 Kg/ M3
River sand : 735 Kg/ M3
Total water : 200 Kg/ M3
Admixture : 0.7%
Fresh concrete density: 2400 Kg/ M3
Note: sand = 735 + 2%, Water = 200- 14.7 = 185.30,
Admixture = 0.7%
M40 ( 1 : 1.67 : 2.39)
Cement : 430 Kg/ M3
20 mm Jelly : 618 Kg/ M3
12.5 mm Jelly : 412 Kg/ M3
River sand : 718 Kg/ M3
Water Cement ratio : 0.43
Admixture : 0.7%
Note: Sand = 718 + Bulkage 1%
M45 ( 1 : 1.58 : 2.26)
Cement : 450 Kg/ M3
20 mm Jelly : 626 Kg/ M3
12.5 mm Jelly : 417 Kg/ M3
River sand : 727 Kg/ M3+ Bulkage 1%
Water Cement ratio : 0.43
Admixture : 0.7%
M50 ( 1 : 1.44 : 2.23)
Cement : 450 Kg/ M3
20 mm Jelly : 590 Kg/ M3
12.5 mm Jelly : 483 Kg/ M3
River sand : 689 Kg/ M3 + Bulkage 12%
Water Cement ratio : 0.36 (188 Kg)
Admixture : 1.20%3
Micro silica : 30 Kg
Super flow 6.7% of cement
as per CPWD M15=240Kg, M20=320Kg, M25=330Kg, M30=340Kg, M35=350Kg CEMENT FOR RMC
| Is This Answer Correct ? | 13 Yes | 1 No |
Answer / prabhu
for M15 1:2:4
M20 1:1.5:3
M25 1:1:2
M30 depend on design mix
M35 depend on design mix .
Its damp sure this answer is very correct & Please contact for
any doubts on prabhu154@gmail.com
| Is This Answer Correct ? | 7 Yes | 1 No |
Answer / zakir harifal
what is the practical concrete mix design for M30 AND M35
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / izhar ahmed
Mix design depends on the trail mixes in the water content
and water cement ratio is determined
to get the particular design strength of concrete in 28
days. Water Content controls the Strength of Concrete, In
general By Reducing The Quantity of Water we Get More
Strength of the concrete. The Desidn Mix Also Depends on
other factors such as Moisture Content of Materials,
Acidity of Water, Salt content In the water etc.
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / kumar
in m30 how to mix concrete exampal cement sand jall water
propostion please tell me
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / satyavir singh
AS PER IS CODE 456 PARA 9.3.1 CLEARLY STATED THE RATIUO OF
M15 & M20, FOR M20 8 Bag Cement Is required for one cum CC
| Is This Answer Correct ? | 5 Yes | 3 No |
Answer / karma
as what are there in this content are all true n i agree with the above answer
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / bharath chandra.mvgr lateral
M25-1:1:2 M30-1:1:1 Remaining depend upon desighns
| Is This Answer Correct ? | 2 Yes | 2 No |
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