In this example for mild exposure and for reinforced concrete, the minimum cement content is 300 kg/m3which is less than 383.2 kg/m 3. Hence cement content adopted = 383.2 kg/m 3. Multiplication Table is an useful table to remember to help you learn multiplication by 15. You should also practice the examples given because the best way to learn is by doing, not memorizing. Online Practice

As mentioned earlier to adjust fresh concrete properties the water-cement ratio should not be changed. Hence x 10 (Hinge), 3.0 x 12 (Hinge), 3.0 x 16 (Hinge), 3.0 x 20 (Hinge), 3.0 x 25 (Hinge), 3.0 x 10, 3.0 x 12, 3.0 x 16, 3.0 x 20, 3.0 x 25, 3.0 x 30, 3.0 x 35, 3.0 x 45, 3.5 x 12, 3.5 x 15, 3.5 x 16, 3.5 x 20, 3.5 x 22, 3.5 x 25, 3.5 x 30, 3.5 x 35, 3.5 x 35, 3.5 x 40, 3.5 x 40, 3.5 x 45, 3.5 x 50, 3.5 x 50, 4.0 x 12, 4.0 x 16, 4.0 x 18, 4.0 x 20, 4.0 x 22, 4.0 x 25, 4.0 x 27, 4.0 x 30, 4.0 x 35, 4.0 x 40, 4.0 x 40, 4.0 x 45, 4.0 x 50, 4.0 x 50, 4.0 x 55, 4.0 x 60, 4.0 x 70, 4.5 x 16, 4.5 x 20, 4.5 x 25, 4.5 x 30, 4.5 x 35, 4.5 x 40, 4.5 x 45, 4.5 x 50, 4.5 x 60, 4.5 x 70, 4.5 x 80, 5.0 x 20, 5.0 x 25, 5.0 x 30, 5.0 x 35, 5.0 x 40, 5.0 x 45, 5.0 x 50, 5.0 x 50, 5.0 x 55, 5.0 x 60, 5.0 x 60, 5.0 x 70, 5.0 x 80, 5.0 x 90, 5.0 x 100, 5.0 x 120, 6.0 x 40, 6.0 x 50, 6.0 x 60, 6.0 x 70, 6.0 x 80, 6.0 x 90, 6.0 x 100, 6.0 x 120, 6.0 x 130, 6.0 x 150, 6.0 x 180, 6.0 x 200, 6.0 x 220, 6.0 x 240, – The volume of aggregate in a total volume of concrete = 1 – [{448.6/(3.15 x 1000)} + (197.4/1000)] = 0.660 m 3With a reduction of 0.05 in w/c, we have to increase of coarse aggregate fraction by 0.01. The following steps are to be followed for concrete mix design calculation, Step-1 Determining the Target Strength of ConcreteEstimated water content for mix = 186+ (3/100) x 186 = 191.6 kg /m 3 Step-4 Selection of Cement Content for Mix One million is equal to 1,000 thousands. This is due to the fact that a million is equal to 1,000,000units of a quantity, but a thousand is equal to 1000units. One million is therefore equivalent to 1,000 × 1,000 units, or 1,000 thousands. How many K is equal to 10 Million?

The percentage increase calculator above computes an increase or decrease of a specific percentage of the input number. It basically involves converting a percent into its decimal equivalent, and either subtracting (decrease) or adding (increase) the decimal equivalent from and to 1, respectively. Multiplying the original number by this value will result in either an increase or decrease of the number by the given percent. Refer to the example below for clarification. Volume aggregate in total volume of concrete = 1 – [{438.7/(3.15 x 1000)} + (197.4/1000)] = 0.664 m 3Himsworth constant for 5% risk factor is 1.65 & standard deviation is taken from IS: 456 2000 for M – 25 Grade of concrete is 4.0. Standard Deviation Because the million to thousand converting factor is 1000, multiply the million value by 1000 to convert it to thousands. To find the resulting product, find the sum of 3 individual product of multiplier and multiplicand. Percentages are computed by multiplying the value of a ratio by 100. For example, if 25 out of 50 students in a classroom are male, . The value of the ratio is therefore 0.5, and multiplying this by 100 yields:

Weight of fine aggregates = 0.6864 x 0.442 x 2.64 x 1000 = 800.94 kg/m 3 Concrete Mix Proportions for Concrete Trial Mix -1 Proper fraction button and Improper fraction button work as pair. When you choose the one the other is switched off. For making trial -1, the mass of ingredients required will be calculated for 4 no’s cubes assuming 25% wastage. All images are for illustrative purposes only. All dimensions are approximate and may vary with manufacturers tolerances. Dimensions contained within product names are approximate, for guidance purposes only. Unless otherwise stated, all measurements are overall including roof overhangs where applicable. Multiplication Table is an useful table to remember to help you learn multiplication by 1000. You should also practice the examples given because the best way to learn is by doing, not memorizing. Online PracticeFind the product of multiplicand and most significant digit (MSD) of 3-digit multiplier, and write down the product under the earlier product but the One’s place value of product should start from the Hundred’s place value of multiplicand. Concrete mix design ensures that the concrete mixture is optimized for both strength and economy. It involves a scientific approach that considers the characteristics of the materials used, their proportions, and their interactions. By carefully selecting the ingredients and their proportions, engineers can create a concrete mix with the desired properties, ensuring the structural integrity and longevity of the construction. Volume of cement = (Weight of cement / Specific gravity of cement) x (1/100) = (383.2/3.15) x (1/1000) = 0.122 m 3 Maximum water content is taken = 186 Kg (maximum size of aggregate = 20 mm)Correction in water content is