Question

Для приготовления 1 м3 тяжелого бетона требуется 200кг цемента, 1200 кг щебня, 0,5 м3 песка, 230л воды. Найдите плотность бетона. Плотность песка 1600 кг/м3, плотность воды 1000 кг/м3.

Answer 1

Решение у файле..............

Answer 2

Calculating Concrete Density

To calculate the density of concrete, we can use the formula:

Density = (mass of concrete) / (volume of concrete)

Given the materials required for 1 m³ of heavy concrete: - Cement: 200 kg - Aggregate (gravel): 1200 kg - Sand: 0.5 m³ - Water: 230 L

We can calculate the mass of the concrete by adding the masses of the individual components: - Mass of concrete = mass of cement + mass of aggregate + mass of sand + mass of water

Let's calculate the mass of the concrete first.

Calculating Mass of Concrete

1. Mass of cement: 200 kg 2. Mass of aggregate: 1200 kg 3. Mass of sand: - Density of sand = 1600 kg/m³ - Volume of sand = 0.5 m³ - Mass of sand = Density * Volume = 1600 kg/m³ * 0.5 m³ 4. Mass of water: - Density of water = 1000 kg/m³ - Volume of water = 230 L = 0.23 m³ - Mass of water = Density * Volume = 1000 kg/m³ * 0.23 m³

Now, we can calculate the total mass of the concrete.

Calculating Total Mass of Concrete

Total mass of concrete = Mass of cement + Mass of aggregate + Mass of sand + Mass of water

Calculating Density of Concrete

Finally, we can calculate the density of the concrete using the formula mentioned earlier.

I will now calculate the mass of sand, mass of water, total mass of concrete, and the density of the concrete.