The total mass is up to 20 tons.
The total mass of concrete is as high as 20 tons, in which the mass ratio of cement, sand and stone is skillfully controlled at 2: 3: 5. This proportion not only ensures the firmness of the building, but also reflects the ingenuity of the engineer.
Calculation of proportional distribution
Adding cement, sand and stone together, the total mass is exactly 20 tons. How is proportional distribution realized? Through calculation, we know that the quality of cement is 4 tons, sand is 6 tons, and stone accounts for 10 tons.
It is important to understand the topic.
Here we need to pay attention to the difference between the mass ratio and the direct mass value in the topic. Sometimes, our understanding will be disturbed, and we need to read the questions carefully to better understand and answer them.