What is the main advantage of using lightweight aggregates in concrete?

Practice Questions

Q1
What is the main advantage of using lightweight aggregates in concrete?
  1. Increased compressive strength
  2. Reduced thermal conductivity
  3. Lower cost
  4. Higher water absorption

Questions & Step-by-Step Solutions

What is the main advantage of using lightweight aggregates in concrete?
  • Step 1: Understand what lightweight aggregates are. They are materials that are lighter than regular aggregates used in concrete.
  • Step 2: Learn about thermal conductivity. This is a measure of how well a material conducts heat.
  • Step 3: Recognize that using lightweight aggregates in concrete lowers its thermal conductivity.
  • Step 4: Realize that lower thermal conductivity means the concrete can keep heat in or out better.
  • Step 5: Conclude that this makes concrete more energy-efficient, as it helps maintain temperature and reduces energy costs.
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