CM 1112 HEUMANN TEST 3 | ACTUAL QUESTIONS AND
ANSWERS | SOLVED 100% CORRECT.
T/F Brick & Stone are usually served as facing materials - veneers, or decorative
walls. Answer - True
T/F Concrete Masonry Units (CMU) are usually served as foundation walls,
structural support walls (low rise), or backup walls for exterior facing. Answer -
True
T/F Mortar could be used to seal joints between the masonry units, minimizing
the flow of air and water. Answer - True
T/F Mortar could be used to adhere units, providing resistance to lateral forces
from wind, earthquakes. Answer - True
T/F Portland cement is hydraulic cement and it hardens by chemically
combining with water (hydration). Answer - True
T/F A well-graded mix lime mortar should be particles ranging in size from
0.003 - 0.187 feet in diameter. Answer - False
T/F For lime mortar ingredients, sands must be free of contaminants, physically
sound, and may be chemically reactive with the other mortar ingredients.
Answer - False
, T/F Hydrated lime could be liquid or wet powder. Answer - False
T/F For lime mortar ingredients, water must be clean, neutral pH, free of
contaminants or organic material. Answer - True
T/F A minimum amount of water is necessary for the chemical hydration of the
cement; additional water is added to produce a working consistency to the wet
mortar. Answer - True
T/F Masonry cement has no added lime ingredient. Answer - True
T/F Masonry cement has higher bond strength than cement-lime mortars.
Answer - False
T/F Mortar cement produced to a standard that assures higher bond strength
comparable to cement-lime mortar. Answer - True
T/F Lime mortar has hydraulic cement ingredient. Answer - False
T/F Lime mortar has some ability to self-heal hairline cracks that may develop
over time; as water and air enter the joint, carbonation can occur and repair
the joint. Answer - True
T/F Lime mortar is used primarily for the restoration of historic masonry
structures. Answer - True
T/F Set accelerators and retarders are used to adjust setting time only in hot
weather. Answer - False
ANSWERS | SOLVED 100% CORRECT.
T/F Brick & Stone are usually served as facing materials - veneers, or decorative
walls. Answer - True
T/F Concrete Masonry Units (CMU) are usually served as foundation walls,
structural support walls (low rise), or backup walls for exterior facing. Answer -
True
T/F Mortar could be used to seal joints between the masonry units, minimizing
the flow of air and water. Answer - True
T/F Mortar could be used to adhere units, providing resistance to lateral forces
from wind, earthquakes. Answer - True
T/F Portland cement is hydraulic cement and it hardens by chemically
combining with water (hydration). Answer - True
T/F A well-graded mix lime mortar should be particles ranging in size from
0.003 - 0.187 feet in diameter. Answer - False
T/F For lime mortar ingredients, sands must be free of contaminants, physically
sound, and may be chemically reactive with the other mortar ingredients.
Answer - False
, T/F Hydrated lime could be liquid or wet powder. Answer - False
T/F For lime mortar ingredients, water must be clean, neutral pH, free of
contaminants or organic material. Answer - True
T/F A minimum amount of water is necessary for the chemical hydration of the
cement; additional water is added to produce a working consistency to the wet
mortar. Answer - True
T/F Masonry cement has no added lime ingredient. Answer - True
T/F Masonry cement has higher bond strength than cement-lime mortars.
Answer - False
T/F Mortar cement produced to a standard that assures higher bond strength
comparable to cement-lime mortar. Answer - True
T/F Lime mortar has hydraulic cement ingredient. Answer - False
T/F Lime mortar has some ability to self-heal hairline cracks that may develop
over time; as water and air enter the joint, carbonation can occur and repair
the joint. Answer - True
T/F Lime mortar is used primarily for the restoration of historic masonry
structures. Answer - True
T/F Set accelerators and retarders are used to adjust setting time only in hot
weather. Answer - False
