Chapter 10

Question 1

Under the alignment of the footing, excavate and place a minimum of what inches of sand?

Answer 1

2 Inches

Question 2

Place drainage tile behind the wall, backfill with what?

Answer 2

Free-Draining angular backfill

Question 3

Wall failure can often be traced to what?

Answer 3

Hydrostatic (Water) pressure

Question 4

Schedule 40 PVC pipes running completely through the base course of the wall every how many feet?

Answer 4

6 to 8 feet

Question 5

Openings in the PVC pipes are called what?

Answer 5

Weepholes

Question 6

Supplemental drainage is recommended in any type wall that exceeds how many feet in height?

Answer 6

6 to 8 feet

Question 7

What should be used in order to save a portion of the pavement

Answer 7

Concrete Saw

Question 8

To effectively remove pavement using jack hammer, what should you use?

Answer 8

Breaker bar to score concrete

Question 9

Start the jack hammer removal by driving shallow indentations, how many inches apart?

Answer 9

4 Inches