11. Limitations of Plastics in Civil Engineering

Try these first

1. 1.

   What does a low modulus of elasticity indicate about a material's load-bearing capacity?

   Hint

   Think about how deformation relates to rigidity.

2. 2.

   Why is thermal expansion an important factor to consider in engineering designs?

   Hint

   Consider the effects of temperature changes.

3. 3.

   What limitation does a low modulus of elasticity indicate for plastics?

   • It can support heavy loads
   • It has high stiffness
   • It has limited load-bearing capacity

   Hint

   Remember the relationship between stiffness and load-bearing abilities.

4. 4.

   True or False: Most plastics are non-combustible materials.

   • True
   • False

   Hint

   Consider the safety aspects of materials used in construction.

5. 5.

   Design a small structure using plastic materials. Identify how you will address the limitations of plastics discussed in this section.

   Hint

   Think about each limitation and creative solutions to enhance structural integrity.

6. 6.

   Evaluate a hypothetical plastic piping system designed without consideration for thermal expansion. Predict potential problems that may arise.

   Hint

   Consider how temperature variations affect material behavior.