The four basic ingredients of mortar are what? correct answers portland cement, water, sand, and hydrated lime
Hydrated lime is added to mortar to impact what? correct answers the smoothness and workability
What is ASTM C270? correct answers Mortar types
Type N mortar is for what? correct ...
Cosc 253 Exam 3 || with 100% Accurate Solutions.
The four basic ingredients of mortar are what? correct answers portland cement, water, sand, and
hydrated lime
Hydrated lime is added to mortar to impact what? correct answers the smoothness and
workability
What is ASTM C270? correct answers Mortar types
Type N mortar is for what? correct answers General purpose
Type S mortar is used for what? correct answers higher flexural strength
Type O mortar is what? correct answers low strength (interior)
Type M mortar is what? correct answers High strength mortar but with less workability
Type K mortar is what? correct answers Very low strength, used in historic preservation, also not
part of the C270
If mortar is mixed less than 90 minutes prior to use and it becomes stiff, the mason can safely
what it with water to make it workable again? correct answers retemper
Much like concrete, mortar can have what? correct answers Admixtures, such as the accelerators
and retarders can be added
The three major methods used to form bricks are what? correct answers The soft mud process
the dry mud process
the stiff mud process
Which one is high production, cost the least and the most widely used today? (about 90%)
correct answers Stiff mud process
What is brick firing? correct answers this affects the finished brick color, uniformly the shape,
hardness and other physical properties
True/False? Bricks are laid in various positions for visual reasons, structural reasons, or both?
correct answers True
What is a brick laid with its face parallel to the wall and its long dimension in the horizontal
position? correct answers Stretcher
What is a brick laid on its end with its face parallel to the wall? correct answers Soldier
What is a brick laid on its face with its end visible in the wall face? correct answers Rowlock
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