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How many concrete cubes to be taken from site for cube test?
6
Why the size of concrete cubes are 150mm?
Basically, the force supplied by a concrete compression machine is a definite value. For normal concrete strength application, say below 50MPa, the stress produced by a 150mmx150mmx150mm cube is sufficient for the machine to crush the concrete sample. However, if the designed concrete strength is 100MPa, under the same force (about 2,000kN) supplied by the machine, the stress under a 150mmx150mmx150mm cube is not sufficient to crush the concrete cube. Therefore, 100mmx100mmx100mm concrete cubes are used instead to increase the applied stress to crush the concrete cubes. For normal concrete strength, the cube size of 150mmx150mmx150mm is already sufficient for the crushing strength of the machine.
What is the probability that a roll of 2 number cubes roll a sum of 24?
If they are standard cubes - with numbers from 1 to 6 - the probability is 0.
How many ice cubes equal 8 lbs?
To determine how many ice cubes equal 8 lbs, we need to know the weight of a single ice cube. The weight of a standard ice cube is approximately 0.5 oz or 0.03125 lbs. To find the number of ice cubes that equal 8 lbs, we divide 8 by 0.03125, which equals 256 ice cubes. So, 256 ice cubes would equal 8 lbs.
What is the probability of rolling a pair of sixes 2 standard number cubes?
1/36
