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- Size of Bricks-
According to Indian Standards, the nominal size of brick of the modular
brick is 200 mm * 1000 mm * 100 mm and the actual size of the brick is 190 mm *
90 mm * 90 mm.The nominal size includes the mortar thickness.
- Bricks
Masonry-
The arrangement of laying bricks and bonding them with mortar
properly to form a unified mass which can transmit the super imposed load
safely to the foundation, is called brick masonry.
There are some important terms used in brick masonry are as follow-
Stretcher- the
longest face of a brick as seen in the elevation of the wall is called
stretcher.
Header- the
shortest face of a brick as seen in the elevation off the wall is called
header.
Arrise- the
edges formed by the intersection of plane surface of brick are called arrise.
Bed- the
lower surface ok brick when it laid flat is known as bed.
Perpend-
an
imaginary vertical line which includes the vertical joint separating two
adjoining bricks is called perpend.
Lap- the
horizontal distance between vertical joints of successive course is termed as
lap.
Closer- a
portion of a brick is used to close up the bond at the end of the brick courses
is called closer.
Queen
closer- it is the portion of a brick adjoining by cutting a
brick lengthwise into two portion. That means, it is brick which is half as
Wide as full brick.
King
closer- it is the portion of a brick which is so cat that the
width of its one end is half that of a full brick, while the width of other end
is equal to the full width.
Bevelled
closer- this is the portion of a brick obtained by cutting the
brick in such a way that half width is maintained at one end and full width at
other end.
Mitred
Closer- it is the portion of a brick through its weight and
making angle of 40 degree and 60 degree width the length of brick.
Bat- the
portion of the brick cut across the width is called bat.
Bull
nose- a brick moulded with a rounded angle is called bill
nose.
Quoin- the
corner for external angle of the face side of wall known as quion.
Frog- the
indentation or depression at the top face of a brick to form a key for holding
the motor is called frog.
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