This slide share shows you how bonding works in terms of distributing the loads and the types of bonds commonly used
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Language: en
Added: Jan 31, 2015
Slides: 25 pages
Slide Content
Basic Brickwork Bonds
BONDINGis the term given to the various
recognised arrangements of brickwork
walling.
These bond patterns are essential for any
wall which is intended to carryHEAVY
LOADSand they prevent as far as possible,
any structural failure.
For this to be affective the bonding must
distribute the loading evenly throughout the
length of the wall, so that each part of the
wall carries a small amount of the load.
If, on the other hand the load is not
distributed but localised to certain portions
of the wall, then this may cause uneven
settlement and cracking.
LOAD
The bonding of brickwork however, is not
confined to strength requirements only.
Very often a certain bond is introduced for its
pleasing appearance , along with another
bond to give a decorative appearance.
TYPES OF BRICKWORK BONDS
There are a large
number of bonding
arrangements, here
are some of the
more common ones
in use.
STRETCHER BOND
ENGLISH BOND
FLEMISH BOND
ENGLISH GARDEN
WALL BOND
HEADER BOND
STRETCHER BOND
Stretcher Bond -Consists of all bricks laid
as stretchers on every course with the
courses laid half-bondto each other.
This is effected in a plain wall with stopped
ends by introducing a half-batas a starting
brick to alternate courses, and is usually
only used in walls of a half brick thickness.
Here is the bonding progression laying all of
the first course, rackingthe corners up and
then proceeding to run inn.
STRETCHER BOND
Half Bats or Headers
Racking back
Stopped Ends
Stretchers
Half Bond
TASK 1
On the note-paper provided,
using a pencil and ruler draw in
the bonding arrangements for a
stretcher bondwall.
Note:There are Four lines to
each Stretcher.
STRETCHER BOND
ENGLISH BOND
English bond-has alternate courses of headers
and stretchers, with a closer placed next to the quoin
header to form a lap,0r half bond.
The first course is established ,and then corners are
racked back as soon as possible to enable you to
run in the rest of the wall.
In the next slide we will see the technique for
construction of an English bond wall.
ENGLISH BOND
closers
Stretcher Courses
Header
Courses
TASK 2
On the note-paper provided, using
a pencil and ruler draw in the
bonding arrangements for a
English BondWall.
ENGLISH BOND
FLEMISH BOND
Flemish bond-consists of alternate courses of
headers and stretcherswith the headers of one
course being placed centrally over the stretcher in
the course below.
A closer is placed next to the quoin header to form
the lap or half bond.
Forming a Flemish bond wall racking back corners,
and running in main wall.
FLEMISH BOND
Closers Headers
plumbed central
to stretchers
TASK 3
On the note-paper provided, using
a pencil and ruler draw in the
bonding arrangements for a
Flemish Bond Wall.
FLEMISH BOND
ENGLISH GARDEN WALL
BOND
English Garden Wall Bond-Sometimes
called Sussex bond, consists of three or sometimes
five courses of stretchers to one course of headers;
the stretcher course being laid half bond to each
other.
The bonding arrangement can be seen in the
following slide establishing the first course as usual,
racking back the corners , and the proceeding to run
in using a line.
ENGLISH GARDEN WALL
BOND
3 Courses of stretchers
Header courses with
Closer next to quoin
brick to form a lap.
TASK 4
On the note-paper provided, using
a pencil and ruler draw in the
bonding arrangements for
English Garden Wall Bond.
ENGLISH GARDEN WALL
BOND
HEADER BOND
Header Bond-Is satisfactory for walls one brick
thick and consists of all headers, with the bond
being formed by three-quarterbats at the quoin.
This can be used in footing courses, or walling that
is curved.
Bonding is as usual, lay first course, rack corners
back as soon as possible and proceed to run in.
HEADER BOND
Three quarter
Bats forming half
bond
TASK 5
On the note-paper provided,
using a pencil and ruler draw in
the bonding arrangements for a
Header Bond Wall.