M-30 CONCRETE MIX DESIGN | ||
As per IS 10262-2009 & MORT&H | ||
A-1 | Stipulations for Proportioning | |
1 | Grade Designation | M30 |
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) | 310 kg/m^{3 } |
5 | Maximum Water Cement Ratio (MORT&H 1700-3 A) | 0.45 |
6 | Workability (MORT&H 1700-4) | 50-75 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/m^{3 } |
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 | BASF Chemicals Company |
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) | 42N/mm^{2} |
2 | Characteristic Strength @ 28 days | 30N/mm^{2} |
A-4 | Selection of Water Cement Ratio | |
1 | Maximum Water Cement Ratio (MORT&H 1700-3 A) | 0.45 |
2 | Adopted Water Cement Ratio | 0.42 |
A-5 | Selection of Water Content | |
1 | Maximum Water content (10262-table-2) | 186 Lit. |
2 | Estimated Water content for 50-75 mm Slump | 160 Lit. |
3 | Superplasticiser used | 0.5 % by wt. of cement |
A-6 | Calculation of Cement Content | |
1 | Water Cement Ratio | 0.42 |
2 | Cement Content (160/0.42) | 380 kg/m^{3 } |
Which is greater then 310 kg/m^{3} | ||
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 | 62.00% |
Adopted Vol. of Fine Aggregate ( 1-0.62) | 38.00% | |
A-8 | Mix Calculations | |
1 | Volume of Concrete in m^{3} | 1.00 |
2 | Volume of Cement in m^{3} | 0.12 |
(Mass of Cement) / (Sp. Gravity of Cement)x1000 | ||
3 | Volume of Water in m^{3} | 0.160 |
(Mass of Water) / (Sp. Gravity of Water)x1000 | ||
4 | Volume of Admixture @ 0.5% in m^{3} | 0.00160 |
(Mass of Admixture)/(Sp. Gravity of Admixture)x1000 | ||
5 | Volume of All in Aggregate in m^{3} | 0.718 |
Sr. no. 1 – (Sr. no. 2+3+4) | ||
6 | Volume of Coarse Aggregate in m^{3} | 0.445 |
Sr. no. 5 x 0.62 | ||
7 | Volume of Fine Aggregate in m^{3} | 0.273 |
Sr. no. 5 x 0.38 | ||
A-9 | Mix Proportions for One Cum of Concrete (SSD Condition) | |
1 | Mass of Cement in kg/m^{3} | 380 |
2 | Mass of Water in kg/m^{3} | 160 |
3 | Mass of Fine Aggregate in kg/m^{3} | 711 |
4 | Mass of Coarse Aggregate in kg/m^{3} | 1283 |
Mass of 20 mm in kg/m^{3} | 924 | |
Mass of 10 mm in kg/m^{3} | 359 | |
5 | Mass of Admixture in kg/m^{3} | 1.90 |
6 | Water Cement Ratio | 0.42 |
Sunday, July 10, 2011
M-30 Concrete Mix Design
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