By
Raj Mohammad Khan
Following table shows the M-25Mix Designs as per IS-10262-2009, hope this helps all civil engineers here
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M-25 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 | M25 |
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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) | 310 kg/m3 |
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5 |
Maximum Water Cement Ratio (MORT&H 1700-3 A) | 0.45 |
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6 |
Workability (MORT&H 1700-4) | 50-75 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 | BASF Chemicals Company |
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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) | 36N/mm2 |
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2 |
Characteristic Strength @ 28 days | 25N/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) | 0.45 |
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2 |
Adopted Water Cement Ratio | 0.43 |
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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 50-75 mm Slump | 138 Lit. |
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3 |
Superplasticiser used | 0.5 % by wt. of cement |
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A-6 |
Calculation of Cement Content | |
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1 |
Water Cement Ratio | 0.43 |
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2 |
Cement Content (138/0.43) | 320 kg/m3 |
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Which is greater then 310 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 | 62.00% |
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Adopted Vol. of Fine Aggregate ( 1-0.62) | 38.00% |
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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 | 0.10 |
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(Mass of Cement) / (Sp. Gravity of Cement)x1000 | |
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3 |
Volume of Water in m3 | 0.138 |
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(Mass of Water) / (Sp. Gravity of Water)x1000 | |
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4 |
Volume of Admixture @ 0.5% in m3 | 0.00134 |
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(Mass of Admixture)/(Sp. Gravity of Admixture)x1000 | |
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5 |
Volume of All in Aggregate in m3 | 0.759 |
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Sr. no. 1 – (Sr. no. 2+3+4) | |
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6 |
Volume of Coarse Aggregate in m3 | 0.471 |
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Sr. no. 5 x 0.62 | |
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7 |
Volume of Fine Aggregate in m3 | 0.288 |
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Sr. no. 5 x 0.38 | |
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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 | 320 |
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2 |
Mass of Water in kg/m3 | 138 |
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3 |
Mass of Fine Aggregate in kg/m3 | 751 |
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4 |
Mass of Coarse Aggregate in kg/m3 | 1356 |
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Mass of 20 mm in kg/m3 | 977 |
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Mass of 10 mm in kg/m3 | 380 |
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5 |
Mass of Admixture in kg/m3 | 1.60 |
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6 |
Water Cement Ratio | 0.43 |
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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.
Dear Sir
What is (MORT&H 1700-3 A)?
regards
rajneesh jindal
What is SSD condition? Please explain since it help me a lot.
Saturated surface dry condition.SSD condition will be considered in Concrete mix design
plz give design mix for PORTLAND SLAG CEMENT
What is the content of sand & coarse agregate in M-25 & M-40 concrete
I want detail about civil construction works
Daily I want detail about civil construction works
Please give design mix M35&M45 cement used opc53 grade sand 3zone
Sir I want detail silt&clay diffrence
If the particle passes through 75 micron IS sieve,that can be silt or clay.If the particle size is less than 2 microns it is clay
sir how can we define cement content for M30 & M40 Grade concrete.
sir, how can we take detail mix design of known quantities of materials for m25 grade of concrete such as cement 403kg/cum, C.A. 0.89cum and 0.44cum of sand per cum of concrete
hi, currently i have to perform a job of casting concrete M25 BUT the required strength are @7days must be 22 and @ 28days not less than 28N/mm2 … what is the best mix ratios by weight/Volume to mix 1 bag of cement =50kg.
Sir, please tell me about a curve graph of cement concrete cube.
Hw do u take up the value of target mean strength….?
wid regards..
Is 1:1:2 closest to M25 grade concrete using PENNA OPC 53 grade cement?
Dear Sir, in M-25 opc-43 grade concrete, what percent water is abserve?
Can u explain me i want to quantity material for m20,m25, m30
sir please tell about M25 GRADE OF DESIGN MIX CONCERET .400KG \PER M CUB
dear sir
how to calculate mix ratio concrete with cement content
what is the mix ratio of M25 Grade of concrete?
Thankyou for explaining us But I have a doubt that at some places people are using 1:1:2 ratio (nomnal mix) for finding cement, fine and coarse aggregate. Can you tell me which one is correct or which method should be used and when
Thank you for the information .. I would like to know the same m25 for natural coarse aggregates ?