1.5. Readiness of Concrete for Finishing

Try these first

1. 1.

   What is a power float?

   Hint

   Think of its basic function.

2. 2.

   What is floating in concrete finishing?

   Hint

   It involves preparing the surface.

3. 3.

   What is the primary purpose of a power float?

   • To lift concrete
   • To finish concrete surfaces
   • To mix concrete

   Hint

   Consider what finishing machines do.

4. 4.

   True or False: A maximum indentation of 1/4 inch is acceptable for machine floating.

   • True
   • False

   Hint

   Remember the specific limits.

5. 5.

   In a scenario where a concrete slab shows an indentation of 1 inch when stepped on, explain the implications for finishing.

   Hint

   Consider the weight the concrete must support.

6. 6.

   A construction site uses a power float that can cover a 3-meter diameter area. What is the maximum area it can cover in a day if it's operated for 8 hours?

   Hint

   Calculate the area using the formula for the area of a circle.