3 – Concrete Ingredients

State the component and their proportion.

“Water”

State the component and their proportion.

“Air”

State the component and their proportion.

“Portland cement”

State the component and their proportion.

“Course aggregate”

State the component and their proportion.

“Fine aggregate”

Identify types of portland cement and their uses.

large piers

Identify types of portland cement and their uses.

pavement

Identify types of portland cement and their uses.

prestressed concrete plants

Identify types of portland cement and their uses.

sidewalks

Identify types of portland cement and their uses.

retaining walls

Identify types of portland cement and their uses.

prestressed concrete plants

Identify types of portland cement and their uses.

large gravity dams

Identify types of portland cement and their uses.

where soil or water has high alkali content

Identify types of portland cement and their uses.

reservoirs

Identify types of portland cement and their uses.

where heat generated must be low

Identify types of portland cement and their uses.

drainage structures

Identify types of portland cement and their uses.

water pipe

Identify types of portland cement and their uses.

cold weather construction

Concrete is a mixture of ________ and ________.

If the mixture has ________ paste, the concrete will be likely to ________ more.

The water – ________ ratio determines the strength of the paste.

The right concrete mixture combines the desired workability of the fresh concrete with the required ________ and ________ of the hardened concrete.

If the mixture has ________, it will not fill all of the voids between the aggregates.

If the mixture has ________, it will not fill all of the voids between the aggregates.

The concrete is ________ during placement, compacting the concrete within the forms.

When the concrete ingredients are combined, the paste surrounds every particle of ________.

________ allows the hydration process to continue.

Which of the following are NOT characteristics of cement suitable for concrete?

Which of the following are NOT characteristics of aggregates suitable for concrete?

Which of the following aggregate shapes works best for concrete?

Coarse aggregates generally consist of natural sand or crushed stone.

Fine aggregates range in size from very fine up to one-fourth inch.

Coarse aggregates generally range between 2 and 3 inches in diameter.

Fine aggregates generally consist of natural sand or crushed stone.

Coarse aggregates consist of gravels or crushed stone.