2. Materials Used in Plaster

Try these first

1. 1.

   What are the three main types of binders used in plaster?

   Hint

   Think about the ecological aspect and strength.

2. 2.

   Name one property of aggregates in plaster.

   Hint

   Consider their function.

3. 3.

   Which of the following is NOT a binder used in plaster?

   • Lime
   • Cement
   • Sand

   Hint

   Recall the three binders discussed.

4. 4.

   True or False? Additives are always necessary in plaster making.

   • True
   • False

   Hint

   Think about the variability in plaster applications.

5. 5.

   You are tasked with ensuring a plaster mixture has minimum shrinkage. Discuss the steps you would take to select your aggregates and materials.

   Hint

   Consider the quality and type of aggregates.

6. 6.

   A construction team used contaminated water without realizing it. Analyze the potential failures this could lead to in their plaster application.

   Hint

   Reflect on the various properties affected by water quality.