By
Raj Mohammad Khan
Following table shows the M-20 Mix Designs as per IS-10262-2009, hope this helps all civil engineers here
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M-20 CONCRETE MIX DESIGN |
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As per IS 10262-2009 & MORT&H |
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A-1 |
Stipulations for Proportioning | |
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1 |
Grade Designation | M20 |
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2 |
Type of Cement | OPC 53 grade confirming to IS-12269-1987 |
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3 |
Maximum Nominal Aggregate Size | 20 mm |
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4 |
Minimum Cement Content (MORT&H 1700-3 A) | 250 kg/m3 |
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5 |
Maximum Water Cement Ratio (MORT&H 1700-3 A) | 0.5 |
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6 |
Workability (MORT&H 1700-4) | 25 mm (Slump) |
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7 |
Exposure Condition | Normal |
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8 |
Degree of Supervision | Good |
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9 |
Type of Aggregate | Crushed Angular Aggregate |
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10 |
Maximum Cement Content (MORT&H Cl. 1703.2) | 540 kg/m3 |
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11 |
Chemical Admixture Type | Superplasticiser Confirming to IS-9103 |
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A-2 |
Test Data for Materials | |
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1 |
Cement Used | Coromandal King OPC 53 grade |
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2 |
Sp. Gravity of Cement | 3.15 |
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3 |
Sp. Gravity of Water | 1.00 |
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4 |
Chemical Admixture | Not Used |
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5 |
Sp. Gravity of 20 mm Aggregate | 2.884 |
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6 |
Sp. Gravity of 10 mm Aggregate | 2.878 |
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7 |
Sp. Gravity of Sand | 2.605 |
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8 |
Water Absorption of 20 mm Aggregate | 0.97% |
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9 |
Water Absorption of 10 mm Aggregate | 0.83% |
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10 |
Water Absorption of Sand | 1.23% |
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11 |
Free (Surface) Moisture of 20 mm Aggregate | nil |
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12 |
Free (Surface) Moisture of 10 mm Aggregate | nil |
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13 |
Free (Surface) Moisture of Sand | nil |
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14 |
Sieve Analysis of Individual Coarse Aggregates | Separate Analysis Done |
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15 |
Sieve Analysis of Combined Coarse Aggregates | Separate Analysis Done |
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15 |
Sp. Gravity of Combined Coarse Aggregates | 2.882 |
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16 |
Sieve Analysis of Fine Aggregates | Separate Analysis Done |
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A-3 |
Target Strength for Mix Proportioning | |
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1 |
Target Mean Strength (MORT&H 1700-5) | 30N/mm2 |
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2 |
Characteristic Strength @ 28 days | 20N/mm2 |
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A-4 |
Selection of Water Cement Ratio | |
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1 |
Maximum Water Cement Ratio (MORT&H 1700-3 A) | 0.5 |
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2 |
Adopted Water Cement Ratio | 0.5 |
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A-5 |
Selection of Water Content | |
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1 |
Maximum Water content (10262-table-2) | 186 Lit. |
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2 |
Estimated Water content for 25 mm Slump | 145 Lit. |
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3 |
Superplasticiser used | nil |
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A-6 |
Calculation of Cement Content | |
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1 |
Water Cement Ratio | 0.5 |
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2 |
Cement Content (145/0.5) | 290 kg/m3 |
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Which is greater then 250 kg/m3 | |
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A-7 |
Proportion of Volume of Coarse Aggregate & Fine Aggregate Content | |
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1 |
Vol. of C.A. as per table 3 of IS 10262 | 62.00% |
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2 |
Adopted Vol. of Coarse Aggregate | 65.00% |
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Adopted Vol. of Fine Aggregate ( 1-0.65) | 35.00% |
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A-8 |
Mix Calculations | |
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1 |
Volume of Concrete in m3 | 1.00 |
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2 |
Volume of Cement in m3 | 0.09 |
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(Mass of Cement) / (Sp. Gravity of Cement)x1000 | |
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3 |
Volume of Water in m3 | 0.145 |
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(Mass of Water) / (Sp. Gravity of Water)x1000 | |
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4 |
Volume of Admixture @ 0% in m3 | nil |
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(Mass of Admixture)/(Sp. Gravity of Admixture)x1000 | |
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5 |
Volume of All in Aggregate in m3 | 0.763 |
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Sr. no. 1 – (Sr. no. 2+3+4) | |
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6 |
Volume of Coarse Aggregate in m3 | 0.496 |
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Sr. no. 5 x 0.65 | |
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7 |
Volume of Fine Aggregate in m3 | 0.267 |
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Sr. no. 5 x 0.35 | |
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A-9 |
Mix Proportions for One Cum of Concrete (SSD Condition) | |
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1 |
Mass of Cement in kg/m3 | 290 |
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2 |
Mass of Water in kg/m3 | 145 |
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3 |
Mass of Fine Aggregate in kg/m3 | 696 |
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4 |
Mass of Coarse Aggregate in kg/m3 | 1429 |
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Mass of 20 mm in kg/m3 | 1029 |
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Mass of 10 mm in kg/m3 | 400 |
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5 |
Mass of Admixture in kg/m3 | nil |
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6 |
Water Cement Ratio | 0.5 |
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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 would like to know about concrete mix design & his mix propotion.
1-How many types of grade concrete
2-Propotion of grade concrete
3-qty of cement,fine aggregate,coarse aggrete & water.
4-qty of cement,fine aggregate,coarse aggrete & water per m3
5-water cement ratio of material
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Dear Sir,
we need simply calculation for design mix concrete..
how its calculat water ratio
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2-Propotion of grade concrete
3-qty of cement,fine aggregate,coarse aggrete & water.
4-qty of cement,fine aggregate,coarse aggrete & water per m3
5-water cement ratio of material
sir please send me detail of design mix proportions of any grade concreate.what happens when proportion is not maintained?
Dear sir please send me details of mix design proprtions of any concrete.
Dear Sir,Please Send me formula for concrete mix design & qyt of rmc & steel in a slab/beam/colum.
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Dear Sir
Can you send me the standard IS-10262-2009
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sir, can you plzz send me how to calculate the mix design for m20 grade concrete and the tables which are required to make mix deign
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Dear sir,
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