Concrete Aggregates Quiz

What do aggregates influence in concrete?

• Only the color of the concrete.

• Only the cost of the concrete.

• The freshly mixed and hardened properties.

• The time it takes for the concrete to set.

What materials are commonly used as fine aggregate in concrete mixtures?

• Gravel and pebbles

• Sand and/or crushed stone

• Clay and silt

• Cement and water

What is the maximum particle size for most particles in fine aggregate?

• < 10 mm

• < 5 mm

• < 15 mm

• < 20 mm

What is the typical range for the content of fine aggregate in concrete by mass or volume?

• 15% to 25%

• 25% to 35%

• 35% to 45%

• 45% to 55%

What materials are commonly used as coarse aggregate in concrete mixtures?

• Sand and clay

• Gravel and crushed stone

• Wood chips and plastic

• Steel and glass

What is the typical size range for particles of coarse aggregate?

• Between 1 mm and 5 mm

• Between 5 mm and 15 mm

• Between 10 mm and 40 mm

• Between 50 mm and 100 mm

What is the minimum particle size for most particles considered as coarse aggregate?

• 1 mm

• 3 mm

• 5 mm

• 10 mm

Which of the following is NOT a category of rock and mineral constituents in aggregates?

• Minerals

• Igneous rocks

• Metamorphic rocks

• Soil

Which of the following is a mineral commonly found in aggregates for concrete mixtures?

• Basalt

• Marble

• Quartz

• Sandstone

What type of rock is granite classified as?

• Sedimentary rock

• Metamorphic rock

• Igneous rock

• Mineral