Masonry Flashcards
Running bond
Bricks are staggered by 1/2 brick from the course above and below, in a classic one-over-two pattern. Also called a stretcher bond. Wall thickness is half brick thickness.
Flemish bond
Stretchers and headers are laid alternately in a single course. Weaker than English bond. It’s often used for walls that are two bricks thick.
Flemish Garden Bond
Three stretchers to one header in each row.
Stretcher
Longer narrow face of the brick.
Header
Is the shorter square face of the brick
Corbel
Shelf or ledge formed by projecting successive courses of masonry out from the face of the wall.
Racking
Masonry in which successive courses are stepped back from the face of the wall.
Toothing
An arrangement of bricks alternately projecting at the end of a wall to permit bonding into a later continuation of the wall.
Type N mortar
Medium compressive strength and it is composed of 1 part Portland cement, 1 part lime, and 6 parts sand. General-purpose mix
At least 750 (psi) and a 28-day strength of 1,500 to 2400 psi.
A lintel
Is a structural member placed over and opening in a wall. May consist of reinforced brick masonry, brick masonry arches, precast concrete, or structural steel shapes.
Supports the load (masonry) above the opening
RBM
Reinforced brick masonry consists of brick masonry which incorporates steel reinforcement embedded in mortar or grout. Increases resistance to forces that produce tensile and shear stresses.
Stack bond
Bricks are stacked on top of one another, resulting in a continuous horizontal edge joints and the vertical head joints. Typically used in non load bearing situations
Common bond
Also called American bond. Between three and nine courses of stretchers between each course of headers.
English bond
Combines alternate courses of stretchers and headers. One of the strongest bonds and is commonly used for bridges and engineering.
Facing brick
Manufactured to be used as facing (seen / exposed). Very clean and even appearance
