IS 2212: Code of practice for brickworks

30 Pages·1991·2.7 MB·English

by  Bureau of Indian Standards

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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 2212 (1991): Code of practice for brickworks [CED 13:
Building Construction Practices including Painting,
Varnishing and Allied Finishing]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
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“Knowledge is such a treasure which cannot be stolen”

IS 2212 : 1991

Indian Stan&d
BRICK WORKS-CODE OF PRACTICE
( First Revision )
First ReprintO CI’OBER 1998
UDC 693-22006-76

Q BIS 1991
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARO
NEW DELHI lMNlO2
rkotco 1991
Building Construction Practices Sectional Committee, CED 13
FOREWORD
This Indian Standard ( First Revision ) was adopted by the Bureau of Indian Standards, after the draft
finalized by the Building Construction Practices Sectional Committee had been approved by the Civil
Engineering Division Council.
This standard was first published in 1962. In this revision types of bricks mentioned in the Table 1 have
been modified to bring it in line with IS 1077 : 1991 ‘Common burnt clay building bricks (jiiiir revision )‘.
Further the materials to be used for mortar have been modified on the basis of IS 2250 : 1981 ‘Code
of practice for preparation and use of masonry mortwa ( jirst rmision )‘.
Figures showing a typical arrangement of cut-brick in a corner has been modified to show the normal
practice adopted by Central Public Works Department and other organizations.
The provisions of this standard do not limit its application to cases where only modular bricks are used; on
the other hand, they can be applied with equal advantage to traditional bricks constructions as well as
special size brick constructions. It is considered that this unified approach in the standard will be parti-
cularly advantageous during the period of transition from traditional brick construction to modular brick
construction resulting in significant saving in bricks, mortar and labour.
it may be noted that the requirements bearing directly QII the dimensions of bricks have been so worded
as to be applicable both to modular and traditional bricks. For example, when the requirements for thick-
ness of wall is stated as ‘one brick’ this will mean 20 cm nominal thickness in case of modular brick and
9 ineh nominal thickness in the case of traditional brick of size 9 in x 44 in x 3 in.
This standard is intended chiefly to cover the technical provision relating to brickwork and it does not cover
all the necessary provisions of a co ntract,

This standard is one of a series of Indian Standards codes of practice covering masonry. Other standards
in the series cover stone masonry and concrete block masonry.
For the purpose of deciding whether a particular requirement of this standard is complied with, the final
value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance
with IS 2 : 1960 ‘Rules for rounding off numerical values ( revised )‘. The number of significant places
retained in the rounded off value should be the same as that of the specified value in this standard.
Indian Standard
BRICK WORKS - CODE OF PRACTICE
( First Revision)
1 SCOPE Footings - A projecting course or courses formed
at the base of a wall to spread the load.
1.1 This standard covers the construction of brick H6dV- A brick laid with its length across the
masonry in general and the erection of brick wall.
walls in particular. Ind6nting- The leaving of reccsscs into which
1.2 Only masonry with clay bricks is dealt with future work can be bonded.
in this standard. Use of unburnt bricks ( kacMu Jamb - The part of the wall at the side of an
bricks ) and use of mud mortar arc not’rpccifically opening.
covered in thii standard.
Joint - A junction of bricks.
B6d Joint - Horizontal joint in brickwork or
masonry.
The Indian Standards listed in Anncz A are CrossJ oint - A joint other than a bed point nor-
necessary adjucts to this zuuxhud.
mal to the wall face.
3 TERMINOLOGY Jointing - The operation of finishing joints as the
masonry work proceeds ( s6# ah 6.5.2 ).
3iO For the purpose of this code, the following
JKominal Thicktuss of a Wall - Thir ia the thickness
definitions shall apply.
of wall that is stated in the cztimatcs for calcula-
tion of quantities. It iz a gCCtitiOd dimension,
3.1 General
which is neither the actual thicknas of wall cz-
eluding rurfacc finishes like pla&cr, rtndwing, ctc,
Bsam Fiui?lg - The filJing of the gap between the
nor necessarily the overall thickness including
ceiling level and the wall bearing level excluding
such iinishcs. The following example will illustrate
portions occupied by beams, r&em, etc. this point:
BOnd- The arrangement of the bricks in succcs- %&Jl Actual
sive courses tie the brickwor k together both TtiknatJ Thieknus
longitudinally and transversely; ,t h e arrangement For traditional brick
is usually daigncd to ensure that no vertical joint of 9 in length ( with
of one coume is ezactly over the one in the nezt allowance of f: in
course above or below it, and there is the greatest for mortar joint ):
possible amount of lap,
One-brick wall 9 in 84 to 8f in
coping O? w6Oth6TiUg - The cover appliof ed over or 1 i-brick wall 134 13 to 134 in
the geometrical form given to a part erutcurts in
to enable it to shed rain-water. P-brick wall 18 in 17) to 173
Corba - A cantilcvcr projecting from the face of in
awailtoformabearing. For modular brick ( with
allowance of 1 cm for
Co&6 - Horizontal ornamental feature projcct-
mortar joint ):
ing from the face of a wall.
One-brick wall 20 cm 19 cm
COWS6 - A layer of bricks including bed mortar. Ii-brick wall 30 cm 29 cm
2-brick wall 4Ocm 39 cm
’ Damp-proof~ urs6 - A layer of impervious mate-
rial laid or inserted in a structure to arrest the Parapet - A solid or pierced guard wall for flat
permeation of dampness. terrace of a balcony ( or a bridge ) or a curb wall
at the lower part of a pitched roof, which is cx-
E&OT6666nC6~- A powdery encrustment of salts left posed to atmosphere on face, back and top.
by evaporation. This may be visible on the aurfacc
or may bc below surface. In the latter case, this is Prrpsnd - An alignment of cross joints whicn can
termed as crypto-florescence. be checked with a plumb line.

1
IS 2212 I 199k
Pointing - The operation of finishing joints subs+
quent to the completion of masonry .( see
also 6.5.3 ).
Pro& - A guide used for setting out brickwork
accurately.
Qu oin - An external corner in brickwork; the
term may also denote the masonry unit based to
form the quoin.
Racking Back - Stepping of the unfinished end of
the wall masonry.
1A Squint
Rrvcal - The visible part of each side of a recess
or opening of a wall.
Slef&er Wall - A dwarf wall usually honeycombed
to carry a plate or sleeper supporting a joisted
floor.
Squint - A brick of special shape used at an
obligue quoin ( see Fig. 1A ),
Stretcher - A brick laid with its length in the
direction of wall.
1B Bevelled Closer
Tuothing - Bricks left projecting in alternate
courses to bond with future work.
3.2 Materials
Bat - Any portion of a brick, cut or broken across
its length usually known according to its fraction
from the whole size, for example, l/2-bats, 3/4
bats, etc.

Closet - Part of a brick either manufactured or
cut from a whole brick and used to maintain
bond.
1C King Closer
Bevelled Closer - Illustrated in Fig. 1B.
King Closer - Illustrated in Fig. 1C.
Queen Closer - Illustrated in Fig. 1 D.
Facing Bricks - Bricks which, being exposed to
view as in the case of unplastered surfaces, are
required to have pleasing appearance, sufficient
resistance to penetrations by rain and greater
durability than common bricks.
Flashing - A sheet of impervious material fixed
to a structure so as to cover an intersection or
joint where water will otherwise leak through. 1D Queen Closer
L - Length of modular brick
W = Width of modular brick
lemplet - A pattern of sheet metal used as aguide H = Height of modular brick
for setting out specific section and shape, FIG. 1 DIFFBRJZNTTY PES OF PART-BRICKS
2
IS 2212 I 1991
ethjmeT ro Bad Block - A kcolb of enots or -noc hearths, flues and syenmihc ni the -kcirb
crete deddeb no a llaw ot etubirtsid the erusserp work.
morf a detartnecnoc .daol
4.2 llA noitamrofni as ni 4.1 llahs eb edam -liava
3.3 slooT and Accessories elba ot those who are elbisnopser for the yrnosam
work. yrasseceN sgniward dna snoitcurtsni for
3.3.1 slooT deriuqer for kcirb yrnosam work, hcus gninnalp the work llahs eb .dehsinruf
as bmulp ,enil ,selur thgiarts edges, ,slewort etc,
4.3 stnemegnarrA llahs osla eb edam for the
are debircsed ni SI 1630 : 1984.
proper egnahcxe of noitamrofni neewteb those
3.3.2 Scafolding and Staging degagne ni yrnosam work dna lla those whose
work lliw affect or lliw eb affected.
esehT are yraropmet emarf works ylnommoc of
,oobmab rebmit or ralubut ,leets/ gnivah ,slacitrev 5 SLAIRETAM
slatnoziroh dna‘ lanogaid secarb deruces or dehsael
together htiw ,slian ropes or other sepyt of -etsaf
5.1 Bricks
,sren hcus as .spmalc esehT are desu for -troppus
gni spmar‘ dna gnikrow smroftalp morf hcihw the
noitcurtsnoc work at rehgih slevel si deirrac .tuo 5.1.1 sselnU deificeps ,esiwrehto yalc-tnrub skcirb
sgnidloffacS are of two ,sepyt ,yleman elgnis dna desu llahs mrofnoc ot SI 1077 : 1991. Heavy ytud
kcirb as per SI 2180 : 1991 llahs eb desu nehw
elbuod .gnidloffacs elgniS gnidloffacs stsisnoc of a
row of slacitrev detcennoc ot sllaw yb slatnoziroh the gnidliub si detcejbus ot yrev yvaeh .gnidaol
pus rted no dna deit ot the .erutcurts elbuoD
sea ”Ft gnidlo stsisnoc of two rows of slacitrev deruces 5.2 Mortar8
or dehsael together htiw latnoziroh dna lanogaid
,sgnicarb gnimrof yllaitnesse a erutcurts -nepedni Mortars for yrnosam llahs eb prep&red ni -drocca
tned of the .gnidliub tI ,yam ,revewoh eb osla ecna htiw SI 2250 : 1981. ehT stneidergni desu
detcennoc $0 the erutcurts at tneinevnoc stniop ni ratrom llahs mrofnoc ot the stnemeriuqer -iceps
for the sake of retteb .ytilibats deif ni 5.2.1 ot 5.2.6,
3.3.3 Storey Rods 5.2.1 Cement
esehT are snettab of wood gninnur eno erom’ro
tnemeC used for brick masonry shall conform to
roolf sthgieh dna gnivah tnenamrep sgnikram
IS 269 : 1976 or SI 455 : 1976 or SI 1489 : 1976
gnidnopserroc ot the noitacol of kcirb sesruoc at
or SI 3466 : 1968 or SI 8041 : 1978 or SI 8043 :
suoirav sthgieh dna of lla ,sgninepo ,sllis ,sletnil
1978.
sedahs-nus dna ralimis serutaef gnirrucco ni the
.sroolf
5.2.2 Lime

4 YRASSECEN NOITAMROFNI
emiL desu for kcirb yrnosam llahs mrofnoc ot
4.1 roF tneiciffe ,gninnalp ngised dna noitucexe
SI 712 : 1984.
of the work, deliated noitamrofni htiw ragard ot
the gniwollof llahs eb dehsinruf ot those -isnopser
NOTE - Hydraulic and remi-hydraulic limes corres-
elb for the :krow ponding to Claaa A. B and E of IS 712 : 1984 are
;onve&ntly availabie for use in masonry mortars,
4 tuoyaL snalp gniwohs the noitatneiro of the whereas fat limea, corresponding to Clau C and D will
;erutcurts require mixing of burnt clay poazolana and other
pozzolanic material, Clalls C and D limer may also be
4 denoisnemiD sliated of the erutcurts htiw used with addition of cement and pozzolanic material.
sliated of snoitces ( ot a ylbatius egral elacs Quick lime &all never,’ be 4 for, $vctural purpose.
that si 02/l or 1 mc = 20 mc ), slevel of It mmt be slacked first. S :lacking at rite shall be done in
accordance with IS 1635 1975.
,snoitadnuof dehsinif dnuorg ,slevel raelc
roolf ot roolf sthgieh of ,smoor sezis of
,sgninepo etc. 5.2.3 Lime Potzolana h&ture
4 epyT dna ssalc of ,krowkcirb sepyt of dnob emiL analozzop erutxim desu for kcirb yrnosam
dna lanif hsinif for the ;krowkcirb the sexim llahs mrofnoc ot SI 4098 : 1983.
of ratrom ot eb ,desu ;cte lluf sliated.ezis of
larutcetihcra ,serutaef sgnidluom dna other
5.2.4 Pozrolana
laiceps work.
4 noitacoL dna other sliated of ,sgninepo 5.2.4.1 deniclaC yalc analozzop llahs mrofnoc ot
chases, stndmdebme of service lines, such as SI :4431 1981.
for water supply, ‘cirainage, electrical instal-
latiods, etc; and location and details of 5.2.4.2 ylF ash llahs mrofnoc ot SI 3812 : 1981.
2
is 2212 I 1991
5.23 Pin8 Aggrega& d) 0th~ suitable There shall be made of
metal 6Grce- rtructural steel conform-
Sand rhall conform to IS 2116 : 1980. ment, such u ing to IS 226 : 1975
galvanized hoop
5.2.6 Water iron
Water used for making masonry mortar8 shall be 6 DESIGN CONSIDBMTIONS
clean and free from injurious quantities of delete-
rious matcriah. Potable water ir generally conri- 6.1 Selection of Bricka
dmd satirfactory for use in masonry mortar, For
further requirements regarding limits of deletcriour 6.1-l For use in various situationa of brick.
materiala permitkd in water, reference may be masonry, the brick shall be selected in accordance
made to IS 456 : 1978. with Table 1.
6.13 When the requirementa for strength of
3.5 M~torhla for Damp-proof Couner masonry predominate in the particular rituation
of use, the brickr shall be of such grade ( SM IS
Materiala for damp roof cottr~s ahal1 be specified 1877 : 1991 aa ot give eht nquired strength for
to conform to one o F the relevant Indian Stand- masonry an d shall be selected in accordance with
ards or other rquirementr rtated below: their relevant provisions of IS 1905 : 1987.
4 Bituminour felts for Conforming to 6.2 &laction of Mortars
waterproofing and IS 1322 : 1982 6.24 Mortars used for brick masonry shall con-
dampproofiing form generally to IS 2256 : 1981.
Bituminona com- Conforming to 6.2.2 The selection of mortar will alno be gover-,
pound8 for water- IS 1580 : 1969 ned by the strength required for masonry and
pmoting p*parer reference may be made in IS 1905 : 1987 for
lc Mortar or concrete Conforrmxlgto knowing the suitability of combination of various
types of mortars and grad- of bricks for different
for UC in damp u.1.1
strengths required for the masonry.
proof course
4
Stone rlab for 6.3 Types of Bonds aad Their Saltability
daWT-%f zEhrn.h g to
6.3.1 The primary object of bond is to give
5.4 MUerial# #niha8lFrof dn8 gnirtbtaeW strength to ma,xnuy, but it may also be employed
to create artistic effects when the brickwork ia
cxpoaed to view.
These shall be specified to c onform to one of the
relevant Indian Standards stated below: The types of bonds generally in use, their charac-
teristics and situations of USC are described in
a) Lad Flashbg Conforming to IS 405 Table 2.
: 7791
Part 2 ) and the
63.2 In brickwork the cross joints in any course
L ‘cknerr shall be bct-
ween 1.6 and 2 mm, shall not be nearer than a quarter of’ brick
length from those in the course below or above it.
b). Bihmimw Falts ~x&rming to IS 1322 :
6.3 Thicknesm of Joint
6.4.1 No bed joint shall be thicker than 12 mm.
5.5 dtoM tmo-dieR
Further the thickness of the bed joints shall be
tuch that four coursat and three joints taken con-
Metal, reinforcement for use in brick masonry secutively shall measure aa follows:
rhall be tpcciiied to conform to one of the rcle-
a) In the case of Equal to four times the
vant Indian Standarda stated below:
traditional bricks actual thickness of the
brick plus 3 cm
a) Mild steel or Conforming to IS 432
medium elisnet (Part I&and 2):1982 b) In the case of Equal to 39 cm
steel bars modular bricks
conforming to
b) Steel fabric or Conforming to IS 1566 : IS 1077 : 1991
hard-drawn steel 1982
wiri: 6.5 Finishing of Joints
c) Expauded metal ~gm$orming to IS 412 : 6.5.1 The face jolts of brickwork may be finished
by ‘jointing’ or by ‘pointing’.
IS 2212I 1991
Tablo1 S&ctioaofBdldingEaickm
( ti’hnua6 .1.1 )
Clam 12’5 common bricka Briclu ,haR be free from
(*1077:1991) minor defect8 ruch an
chipa at the edge of cor-
ners. Colour and texture
may also be specified ifw,
required
2. 8) Subiect to *em he8w IIe8-u~ duty ( u) IS 2190 :
gnidol - -
)b Requiring 8 high rub- do
tance to W8wr penetm-
tion
.3 8) Plinths and foundations Cl- 12’5 orc;kur 7.5
below corn anon ( SCI
d8m z. ps! IS 1077 : 1991 )
zEzlFan?E chance
of continu81 wetting in
foundation8
b) Plinth and foundatiam do The bricka shall be free
behw from eilloretcence. They
coune- m#$zEzz shall 81~0n ot have any ralt
table at 8 hiih level content which will affect
the mortar of the muonry,
The bricks may preferably
be the denest available
with the minimum water
8korption
8) External walls, neither Clam 12’5 common kicks The b&L &all preferably The exposed joints shall be
plutered nor rendered (su IS 1077 : 1991 ) be of uniform colour pointed with 8 dense water
on the outer face tight mormr
)b External waib iiniahed Cl a n 7’5 or better quality For ritu8tionr expooed to
owna tebr-ottihg htf acpelaa rwteirt h o8r c1o0m77m :o n19 91b r)i cks ( su IS sTeavbelree S ) wonealyth eCr lass (1 2M’5T
rendering common bricks shall be
used u in4(8).
Internal walk Clam 7’5 common bricks Clw S-5 common brick,
( SWI S 1077 : 1991’) alro may be connidered for
UM, provided they ratisfy
the mqulrementa for tire-
ngth ( UI IS 1077 : 1991 )
For wallr which are liable
to be frequently in contact
with water ruch u in bath-
rooms, only Clus 7.5 or
better bricks shall be used
.6 Free standing walls, p8r8- Cl- 12’5 common bricks A deme water-tight mortar
pea (WI IS 1077: 1991) rhall be ured for the maso-
nry. Parapet1 rhall prefer-
ably be finished on all
rider with 8 watertight
plutCr

5