22.3.1. Crushing test

Try these first

1. 1.

   What does the crushing test measure?

   Hint

   Think about the forces aggregates face in pavements.

2. 2.

   What is a good ACV value for aggregates?

   Hint

   Remember the scale provided for ACV values.

3. 3.

   What is the main purpose of the crushing test?

   • To measure resistance to water absorption
   • To determine resistance to compressive stress
   • To evaluate aggregate shape

   Hint

   Think about what happens when weight is applied to material.

4. 4.

   Is an ACV of 5% considered strong?

   • True
   • False

   Hint

   Remember what ACV values signify strength.

5. 5.

   Analyze two types of aggregates, one with an ACV of 6% and another with 37%. Predict the implications for their use in a high-traffic highway.

   Hint

   Reflect on the implications of strength on longevity in road usage.

6. 6.

   Design a small-scale experiment to measure the crushing value of a new aggregate source. Detail the steps and expected outcomes.

   Hint

   Consider each step carefully, including measuring and applying the standard load.