4. Cracking in Concrete

Try these first

1. 1.

   What are structural cracks?

   Hint

   Think of how cracks might affect load-bearing capacity.

2. 2.

   Name one cause of non-structural cracks.

   Hint

   Consider what happens during concrete curing.

3. 3.

   What is a structural crack?

   • A type of crack that only affects appearance
   • A crack that compromises structural integrity
   • A superficial crack in decor

   Hint

   Consider the role of cracks in load-bearing components.

4. 4.

   True or False: Drying shrinkage occurs while the concrete is still wet.

   • True
   • False

   Hint

   Think about the timing of dry versus wet.

5. 5.

   Critically analyze how environmental conditions contribute to the development of drying shrinkage cracks in a concrete sidewalk exposed to sunlight.

   Hint

   Think about the conditions present during the sidewalk's installation.

6. 6.

   Design a maintenance schedule that addresses both monitoring and repairing cracks in a bridge structure.

   Hint

   Consider the implications of regular inspection.