Difference between revisions of "AY Honors/Masonry/Answer Key"

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==2. Demonstrate ability to use properly the following:==
 
==2. Demonstrate ability to use properly the following:==
 
=== Plumb line===
 
=== Plumb line===
 +
A plumb line is a string with a plumb bob at the end of it.  The plumb bob hangs straight down, so the plumb line can be used to make sure that a wall is perfectly vertical and does not lean in any direction.
 +
 
=== Line stretcher (chicken legs)===
 
=== Line stretcher (chicken legs)===
 
=== Level===
 
=== Level===

Revision as of 00:42, 15 March 2006

Skill Level 3

1. Name at least six materials commonly used by masons in the erection of walls or buildings.

Primary materials include:

  1. Brick
  2. Concrete Block (also known as cinder block)
  3. Poured Concrete
  4. Stone
  5. Glass Block
  6. Tile

Secondary materials include

  1. Mortar
  2. Rebar
  3. Grout

2. Demonstrate ability to use properly the following:

Plumb line

A plumb line is a string with a plumb bob at the end of it. The plumb bob hangs straight down, so the plumb line can be used to make sure that a wall is perfectly vertical and does not lean in any direction.

Line stretcher (chicken legs)

Level

Trowel

S-tool

mason hammer

3. Demonstrate a knowledge of building cement characteristics (know how to prevent sweating, cracking, shrinking, crumbling, and loss of strength).

  • Sweating
  • Cracking
  • Shrinking
  • Crumbling
  • Loss of strength

4. Make useable mortar and state proper proportions of ingredients (lime, sand, etc.).

5. Lay a straight stone, brick, or block masonry wall at least four feet (1.2 meters) high and ten feet (3.0 meters) long, including an inside or outside corner (surface must be struck and broomed).

6. Pour a level footing, using hand mixed cement and proper reinforcement.

7. Make the forms and lay a piece of concrete walk or floor, using commercially mixed cement. Finish it and rule it.

8. Write a paragraph describing the behavior of cement; that is, its reaction to water, its adhesive qualities, how long it takes to set, etc.

References