BOND OF BRICK IN MASONRY WORKS
Types of Bonds in Brickwork:
The masonry wall in which bricks are used are known as brick masonry wall.
Following are some bonds in brick masonry wall work described below –
1. Stretcher Bond
2. Header Bond
3. English Bond
4. Flemish Bond
5. Garden Wall Bond
STRETCHER BOND:-
a) In this type of bond
all bricks are arranged in the stretcher course.
HEADER BOND:-
a) In this type of bond
the bricks are arranged in header course.
ENGLISH BOND:-
This type of bond is generally used in practice. It is considered as the
strongest bond in brick work.
a) The alternate course
consists of header and stretcher.
b) The Queen Closer is
put next to the header to develop the face lap.
c) Each the alternate header
is centrally supported over a stretcher.
d) If the wall thickness
is an even multiple of half brick the same course show header or stretcher in
both the front and the back elevation, but if the wall thickness is an uneven
multiple of half-brick a course showing stretcher on the face, shows header on
the back and vice versa.
e) The brick in the same
course don’t break joints with each other. The joints are straight.
f) In this bond the
continuous vertical joints are not formed except at certain stopped end.
g) The number of mortar
joint in the header course is nearly doubles tan that in the stretcher course.
Hence
care should be taken to make the header joints thinner; otherwise the face lap
disappear quickly.
h) A header course
should never start with queen closer. As it is liable to get displaced in the
position.
i) The Queen Closer are
not required in stretcher course.
FLEMISH BOND:-
In this type of bond the header are distributed evenly and hence it
creates the better appearance than English Bond.
a) In every course
header and stretcher are provided alternately.
b) The Queen Closer is
put next to the header in alternate course to develop the face lap.
c) Every header is
centrally supported over a stretcher and below it.
d) The Flemish bond may
be divided into two parts –
i.
Double Flemish Bond.
ii.
Single Flemish Bond.
i.
Double Flemish Bond:
In double
Flemish Bond the header and stretcher are placed alternately in front as well
as back elevation.
ii.
Single Flemish Bond:
In single
Flemish Bond the face elevation of Flemish Bond and the filling as well as
backing is of Flemish Bond.
e) The brick in the same
course don’t break joints with each other. The joints are straight.
f) In this bond the
shocked continuous. The vertical joints are formed.
g) The bricks beds are
to be used for walls having a thickness equal to or even number of a half
brick.
GARDEN WALL BOND:-
a) This type of bond as
the name suggest is used for the construction of boundary wall, compound wall,
garden wall etc.
b) The wall is one brick
wall and its height does not exceed 2.0m.
c) The wall may be
constructed either English Bond or Flemish Bond.
d) In the English Garden
Wall Bond, one header course is provided to three or four stretcher course.
e) The Queen Header are
placed in alternate course and a Queen Closer is placed next of Queen Header in
a header course to developed the necessary lap.
f) In the Flemish Garden
Wall Bond, each course contains one header to tree or five stretchers.
g) A three forth brick
bed is placed next to the Queen header in every alternate course to developed
the necessary course.
No comments:
Post a Comment