What is the main function of coarse aggregates in concrete?
Practice Questions
Q1
What is the main function of coarse aggregates in concrete?
To provide thermal insulation
To reduce shrinkage
To enhance the compressive strength
To improve aesthetic appearance
Questions & Step-by-Step Solutions
What is the main function of coarse aggregates in concrete?
Step 1: Understand what coarse aggregates are. They are large particles, like gravel or crushed stone, used in concrete.
Step 2: Know that concrete is made up of several components: cement, water, fine aggregates (like sand), and coarse aggregates.
Step 3: Recognize that coarse aggregates take up space in the concrete mix, which is referred to as providing 'bulk'.
Step 4: Learn that the presence of coarse aggregates helps to increase the strength of concrete, especially its ability to withstand heavy loads, known as 'compressive strength'.
Step 5: Conclude that without coarse aggregates, concrete would be weaker and less durable.
