By
Raj Mohammad Khan
Following table shows the M-20 Mix Designs as per IS-10262-2009, hope this helps all civil engineers here
|
M-20 CONCRETE MIX DESIGN |
||
|
As per IS 10262-2009 & MORT&H |
||
|
A-1 |
Stipulations for Proportioning | |
|
1 |
Grade Designation | M20 |
|
2 |
Type of Cement | OPC 53 grade confirming to IS-12269-1987 |
|
3 |
Maximum Nominal Aggregate Size | 20 mm |
|
4 |
Minimum Cement Content (MORT&H 1700-3 A) | 250 kg/m3 |
|
5 |
Maximum Water Cement Ratio (MORT&H 1700-3 A) | 0.5 |
|
6 |
Workability (MORT&H 1700-4) | 25 mm (Slump) |
|
7 |
Exposure Condition | Normal |
|
8 |
Degree of Supervision | Good |
|
9 |
Type of Aggregate | Crushed Angular Aggregate |
|
10 |
Maximum Cement Content (MORT&H Cl. 1703.2) | 540 kg/m3 |
|
11 |
Chemical Admixture Type | Superplasticiser Confirming to IS-9103 |
|
A-2 |
Test Data for Materials | |
|
1 |
Cement Used | Coromandal King OPC 53 grade |
|
2 |
Sp. Gravity of Cement | 3.15 |
|
3 |
Sp. Gravity of Water | 1.00 |
|
4 |
Chemical Admixture | Not Used |
|
5 |
Sp. Gravity of 20 mm Aggregate | 2.884 |
|
6 |
Sp. Gravity of 10 mm Aggregate | 2.878 |
|
7 |
Sp. Gravity of Sand | 2.605 |
|
8 |
Water Absorption of 20 mm Aggregate | 0.97% |
|
9 |
Water Absorption of 10 mm Aggregate | 0.83% |
|
10 |
Water Absorption of Sand | 1.23% |
|
11 |
Free (Surface) Moisture of 20 mm Aggregate | nil |
|
12 |
Free (Surface) Moisture of 10 mm Aggregate | nil |
|
13 |
Free (Surface) Moisture of Sand | nil |
|
14 |
Sieve Analysis of Individual Coarse Aggregates | Separate Analysis Done |
|
15 |
Sieve Analysis of Combined Coarse Aggregates | Separate Analysis Done |
|
15 |
Sp. Gravity of Combined Coarse Aggregates | 2.882 |
|
16 |
Sieve Analysis of Fine Aggregates | Separate Analysis Done |
|
A-3 |
Target Strength for Mix Proportioning | |
|
1 |
Target Mean Strength (MORT&H 1700-5) | 30N/mm2 |
|
2 |
Characteristic Strength @ 28 days | 20N/mm2 |
|
A-4 |
Selection of Water Cement Ratio | |
|
1 |
Maximum Water Cement Ratio (MORT&H 1700-3 A) | 0.5 |
|
2 |
Adopted Water Cement Ratio | 0.5 |
|
A-5 |
Selection of Water Content | |
|
1 |
Maximum Water content (10262-table-2) | 186 Lit. |
|
2 |
Estimated Water content for 25 mm Slump | 145 Lit. |
|
3 |
Superplasticiser used | nil |
|
A-6 |
Calculation of Cement Content | |
|
1 |
Water Cement Ratio | 0.5 |
|
2 |
Cement Content (145/0.5) | 290 kg/m3 |
|
|
Which is greater then 250 kg/m3 | |
|
A-7 |
Proportion of Volume of Coarse Aggregate & Fine Aggregate Content | |
|
1 |
Vol. of C.A. as per table 3 of IS 10262 | 62.00% |
|
2 |
Adopted Vol. of Coarse Aggregate | 65.00% |
|
|
Adopted Vol. of Fine Aggregate ( 1-0.65) | 35.00% |
|
A-8 |
Mix Calculations | |
|
1 |
Volume of Concrete in m3 | 1.00 |
|
2 |
Volume of Cement in m3 | 0.09 |
|
|
(Mass of Cement) / (Sp. Gravity of Cement)x1000 | |
|
3 |
Volume of Water in m3 | 0.145 |
|
|
(Mass of Water) / (Sp. Gravity of Water)x1000 | |
|
4 |
Volume of Admixture @ 0% in m3 | nil |
|
|
(Mass of Admixture)/(Sp. Gravity of Admixture)x1000 | |
|
5 |
Volume of All in Aggregate in m3 | 0.763 |
|
|
Sr. no. 1 – (Sr. no. 2+3+4) | |
|
6 |
Volume of Coarse Aggregate in m3 | 0.496 |
|
|
Sr. no. 5 x 0.65 | |
|
7 |
Volume of Fine Aggregate in m3 | 0.267 |
|
|
Sr. no. 5 x 0.35 | |
|
A-9 |
Mix Proportions for One Cum of Concrete (SSD Condition) | |
|
1 |
Mass of Cement in kg/m3 | 290 |
|
2 |
Mass of Water in kg/m3 | 145 |
|
3 |
Mass of Fine Aggregate in kg/m3 | 696 |
|
4 |
Mass of Coarse Aggregate in kg/m3 | 1429 |
|
|
Mass of 20 mm in kg/m3 | 1029 |
|
|
Mass of 10 mm in kg/m3 | 400 |
|
5 |
Mass of Admixture in kg/m3 | nil |
|
6 |
Water Cement Ratio | 0.5 |
Advertisements
We are thankful to Er. Raj M. Khan for sharing this information with us on engineeringcivil.com. We hope this would be of great significance to civil engineers.
If you have a query, you can ask a question here.
I want quantity of cement kg/mq , Aggregate kg/mq, Sand kg/mq in below grade
M-10
M-15
M-20
M-25
M-30
M-40
this will be depend as per design mix.approx ratio will be available in is 456-2000
Dear Sir, Mix Design is ok. Density of concrete is more than 2400kg/m3.i feel this canot be pumpable because 20mm quantity is too much. This is not econamical design.
I want quantity of cement , Aggregate , Sand In Kg/M3 in below grade
M-10
M-15
M-20
M-25
M-30
M-40
M 45
I WANT TO KNOW THE AFTER 7 DAY, WHAT IS THE STRENGTH SHOULD BE ACHIVED ( CUBE TEST)
I want quantity of cement , Aggregate , Sand In cmt in below grade
M-10
M-15
M-20
M-25
M-30
M-40
M 45
please give detail of sand metal I(10mm) metal II(20mm),water & cement requird for mix design M-20 in how much to concerate to be done in 1 bag cement
I want quantity of cement , Aggregate , Sand In cmt in below grade
M-10
M-15
M-20
M-25
M-30
M-40
M 45
I want quantity of cement , Aggregate , Sand In cmt in below grade
M-10
M-15
M-20
M-25
M-30
M-40
M 45
I want quantity of cement , Aggregate, Sand and water for
Deffirent type of mix grade and ratio
M5
M7.5
M10
M15
M20
M25
M30
M35
M40
as per site condition what is the quantity of coarse aggregate and fine aggregate in one cubic metre of concrete of m20 grade
SIR,
KINDLY GIVE ME M20,M25,M30,M35,M40,M45,M50 FOR PUMPABLE CONCRETE FOR MY USE.ALSO USE ADMIXTURE FOR DESIGN MIX CLARIFY THE SAME
Sir,
Arrangement may kindly be made to express the ratio and quantity of the flowing grade
M-25
M-30
M-35
M-40
Kindly send the information as mantion above at my e-mail id
With regards
Liton dey
M10
M15
M20
M25
M30
M35
M40
give me the mix properation of above gradws.
I want detail for M-20 mix design
I want how to caluculate 8 bags cement per Cum
I want to know the mix proportion of materials for M15, M20, M25, M30, M35, M40 and M45 with strength to be gained after 7 days, 14 days and 28 days and also about calculating instruments especially for pillars
I want quantity of cement kg/mq , Aggregate kg/mq, Sand kg/mq in below grade
M-10
M-15
M-20
M-25
M-30
M-40
please send me following grd.mix design for site mix.
M-10, M- 15 , M- 20, M- 30, M- 35, M-40, M-50
Thanking You.
I want quantity of cement , Aggregate, Sand and water for
Deffirent type of mix grade and ratio
M5
M7.5
M10
M15
M20
M25
M30
M35
M40
please send me following grd.mix design for site mix.
M-10, M- 15 , M- 20, M- 30, M- 35, M-40, M-50
Thanking You.
if i use this job mix formulae for m-20 grade concretethe strngth of cubes casted at rmc plant comes to 25 26 and 24 then
1.the mix may accepted at reduced rates
2 the mix may be rejected
3 the mix is as per is specification
I want quantity of cement , Aggregate, Sand and water for
Deffirent type of mix grade and ratio
M5
M7.5
M10
M15
M20
M25
M30
M35
M40