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CMP 124 Exam 2 Questions and Answers 100% Pass | Graded A+

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CMP 124 Exam 2 Questions and Answers 100% Pass | Graded A+ CMU - Concrete Masonry Unit CMU's are made of - - Portland Cement - Water - Aggregate (Fine) - Admixtures (Sometimes) Types and Reasons for Admixtures in CMU - - Air Entrainment: For protection - Certain admixtures are used for fin...

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  • September 13, 2024
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  • Exam (elaborations)
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  • CMP 124
  • CMP 124
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CMP 124 Exam 2 Questions and

Answers 100% Pass | Graded A+


CMU - ✔✔Concrete Masonry Unit

CMU's are made of - ✔✔- Portland Cement

- Water

- Aggregate (Fine)

- Admixtures (Sometimes)

Types and Reasons for Admixtures in CMU - ✔✔- Air Entrainment: For

protection

- Certain admixtures are used for finish

Weight of Certain CMU's - ✔✔- Standard Weight

* 8'' Block = 45lbs

* Above + Below grade



- Light Weight

*8'' Block = 25lbs

* Above grade

,-Difference in weights comes from aggregate

CMU (block) Height - ✔✔-Full height = full 8''

-Modulars = 7'' 5/8

Type and grade of CMU - ✔✔- Type I: M.C. is controlled (Better)



- Type II: Not restricted to M.C



- Grade N:Suitable for general use (Exterior wall, above or below grade)

(Better)



Grade S: Limited above ground use only

CMU (block) Shapes - ✔✔- Regular

- Bull hose

- Jamb/ Split-able

- Lintel

CMU (block) Cores - ✔✔- 2 core: Cores always line up

*lighter and costs less

, - 3 core: Cores don't line up

Laying out a wall - ✔✔- Find the true corners of the wall (check for

squareness

-shoot corners for height

-build leads (corners)

-run in center

-damp proof

Footings size - ✔✔usually 8'' thick and 16'' wide

Shape of footings - ✔✔*add pictures*

Comparison of Foundation walls - ✔✔-Block: More labor

-Poured Concrete: More material

^those 2 same cost

-Wood: High initial cost but way less cost in labor (fast erection time)

Moisture proofing - ✔✔-Damp proof: Spray, Brush, roll on (Oil Based)

-Moisture proof: Tar, rubber, mastic (more $)

Bricks - ✔✔Made of clay

3 Funtional properties of Exterior brick masonry wall - ✔✔3 funtional

properties

-Strength: compressive

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