CMP Exam 2| 124 Solved Questions with
Verified Answers Latest 2024
Mortar - ✔✔Bonds individual units together
4 Functions of Mortar - ✔✔-bind
-seal: moisure + air
-compensate: size variation
-esthetic: color + shadow lines
Make up of Mortar - ✔✔-portland cement + lime
-sand (clean washed) (well graded)
-water (clean)
What do we use mortar with - ✔✔-bricks
-stones
-CMU's
mortar plastic state - ✔✔-workable
-water retentative
-bond quality
-consistent rate of hardening
mortar hardened state - ✔✔-appearance
,-seals
-bond
-low efflorescence: white powder appearance
*how to clean: brush + water
Types of mortar - ✔✔*M: 2500psi (best) (above below grade)
S: 1800psi (above below grade)
*N: 750psi (above grade)
O: 350psi (non load bearing)
K: 75psi (truck pointing)
*= most common
Mortar color - ✔✔- depends on type of mortar
- time of tooling(stricking)
- pigments added
- aggregate color
Mortar mixing - ✔✔hand shovel
mortar = 1
sand = 3
handeling/ placing mortar - ✔✔retempering: adding more water
*can only do with mortar not concrete
, typical mortar joint size - ✔✔3/8''
admixtures to mortar - ✔✔-calcium chloride: caution is using steel use liquid
not powder
-cold weather options: hot sand
*caution with hot water... flash set
moisture proofing (mortar) - ✔✔parging: back plaster, tar, mastic
types of tooled mortar joints - ✔✔- concave
- vee
- flush
- raked
- extruded
- beaded
- struck
- weathered
Sheathing and panels - ✔✔exterior layer on the outside wall, but not final
exterior surface
sheathing insulation - ✔✔- polystyrene (foam)
*expanded R- 3.9/inch
*extruded R- 5 (can go below grade
Verified Answers Latest 2024
Mortar - ✔✔Bonds individual units together
4 Functions of Mortar - ✔✔-bind
-seal: moisure + air
-compensate: size variation
-esthetic: color + shadow lines
Make up of Mortar - ✔✔-portland cement + lime
-sand (clean washed) (well graded)
-water (clean)
What do we use mortar with - ✔✔-bricks
-stones
-CMU's
mortar plastic state - ✔✔-workable
-water retentative
-bond quality
-consistent rate of hardening
mortar hardened state - ✔✔-appearance
,-seals
-bond
-low efflorescence: white powder appearance
*how to clean: brush + water
Types of mortar - ✔✔*M: 2500psi (best) (above below grade)
S: 1800psi (above below grade)
*N: 750psi (above grade)
O: 350psi (non load bearing)
K: 75psi (truck pointing)
*= most common
Mortar color - ✔✔- depends on type of mortar
- time of tooling(stricking)
- pigments added
- aggregate color
Mortar mixing - ✔✔hand shovel
mortar = 1
sand = 3
handeling/ placing mortar - ✔✔retempering: adding more water
*can only do with mortar not concrete
, typical mortar joint size - ✔✔3/8''
admixtures to mortar - ✔✔-calcium chloride: caution is using steel use liquid
not powder
-cold weather options: hot sand
*caution with hot water... flash set
moisture proofing (mortar) - ✔✔parging: back plaster, tar, mastic
types of tooled mortar joints - ✔✔- concave
- vee
- flush
- raked
- extruded
- beaded
- struck
- weathered
Sheathing and panels - ✔✔exterior layer on the outside wall, but not final
exterior surface
sheathing insulation - ✔✔- polystyrene (foam)
*expanded R- 3.9/inch
*extruded R- 5 (can go below grade
