What is the density of lime fly ash macadam in general

What is the density of lime fly ash macadam in general

The proportion is the weight ratio of materials. Add one item of cement, and determine the amount of cement according to the weight and proportion of lime. At the same time, reduce the amount of lime. Generally, the specific gravity of lime is 2.15 ~ 2.2 tons / m3

Who knows the density of lime, black ash, stone and lime flyash macadam?

The stone is weighed first, and the mass is M1 (g). The empty bottle is filled with water and weighed. The total mass of the bottle and water is M2 (g). Tie the stone with a thin wire and immerse it completely in the water. Then take out the stone bottle and weigh it again. If the total mass of the bottle and water is m3 (g), the mass of the discharged water is m3-m2 (g), the volume of the stone is m3-m2 (cm ^ 3), and the density of the stone is M1 (m3-m2) (GCM ^ 3)

The apparent density of a rock is 2.75 g / cm3, and the porosity is 1.5. Now the rock is broken into crushed stone, and the bulk density of crushed stone is 1560kg / m3?

(1) According to the porosity formula: (1 - apparent density / density) * 100% = porosity
Then: 1-2.73 / density = 1.5%
So the density of rock is 2.77g/cm3
(2) According to the porosity formula: (1 - bulk density / apparent density) * 100% = porosity
Then the porosity: (1-1.56 / 2.75) * 100% = 43.3%

The cuboid has a volume of () cubic decimeter and a surface area of () square centimeter

3dm³
1400cm²

Cut a largest cube from a 6cm long cuboid, the cuboid volume is 64cubic decimeter. How many square centimeters is the original cuboid surface area?

Cube volume = 64 cubic decimeters?
Cube volume = 64 CC
Cube edge length = 4cm
So the cuboid's width = height = 4cm
Surface area of original cuboid
=2（6*4+6*4+4*4）
=2*64
=128 (square centimeter)

The total edge length of a cuboid is 36 decimeters, and the ratio of length to width to height is 3:2:1. 1. How many square decimeters is the surface area of the cuboid?

Length + width + height = 36 △ 4 = 9 (decimeter)
3+2+1=6
Length = 9 × 3 / 6 = 4.5 (decimeter)
Width = 9 × 2 / 6 = 3 (decimeter)
Height = 9 × 1 / 6 = 1.5 (decimeter)
Surface area = (4.5 × 3 + 3 × 1.5 + 1.5 × 4.5) × 2 = 49.5 (square decimeter)
Volume = 4.5 × 3 × 1.5 = 20.25 (cubic decimeter)

Use three cuboids that are 4 decimeters long, 3 decimeters wide and 2 decimeters high to form a cuboid with the largest surface area. What are the surface area and volume of this cuboid?

Cuboid volume unchanged: 3 × 4 × 2 × 3 = 72 cubic decimeters surface area: because the largest must be the smallest surface is covered, the smallest surface is wide and high, the surface area is: 3 × 2 = 6 square decimeters, three separate surface area: [(4 × 3) + (3 × 2) + (4 × 2)] × 3 = 78 square decimeters together to cover

For a cuboid model, the sum of all edges is 72 decimeters, and the ratio of length, width and height is 4:3:2. What is the cuboid model's volume of cubic decimeters?

4 + 3 + 2 = 9 (parts), length: 72 ／ 4 × 49 = 18 × 49 = 8 (decimeters), width: 72 ／ 4 × 39 = 18 × 39 = 6 (decimeters), height: 72 ／ 4 × 29 = 18 × 29 = 4 (decimeters), volume: 8 × 6 × 4 = 192 (cubic decimeters); answer: the volume of this cuboid model is 192 cubic decimeters

The total edge length of a cuboid is 36dm, and the ratio of length, width and height is 5:2:2. The surface area of the cuboid is______ DM2, the volume is______ dm3．

36 △ 4 = 9 (DM), 5 + 2 + 2 = 9 (PHR), length: 9 × 59 = 5 (DM), width: 9 × 29 = 2 (DM), height: 9 × 29 = 2 (DM), surface area: (5 × 2 + 5 × 2 + 2 × 2) × 2, = (10 + 10 + 4) × 2, = 24 × 2, = 48 (DM2); volume: 5 × 2 × 2 = 20 (DM3); answer: the surface area of this cuboid is 48 DM2, volume is 20 DM3

The total edge length of a cuboid is 108 decimeters, and the ratio of length to width to height is 2:3:4. What are the surface area and volume of the cuboid?

Ysjmysysysl, Hello: the sum of length, width and height is 108 ／ 4 = 27 (decimeter). The length of the cuboid is 27 × 2 / (2 + 3 + 4) = 6 (decimeter). The width of the cuboid is 27 × 3 / (2 + 3 + 4) = 9 (decimeter). The height of the cuboid is 27 × 4 / (2 + 3 + 4) = 12 (decimeter). The surface area of the cuboid is 2 × (6 × 9)