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है”ह”ह

IS 6073 (2006): Autoclaved reinforced cellular concretefloor and roof slabs - [CED 51: Planning, Housing andpre-fabricated construction]

IS 6073:2006

Indian Standard

AUTOCLAVE REINFORCED CELLULAR CONCRETEFLOOR AND ROOF SLABS — SPECIFICATION

(First Revision)

ICS 91.060.30; 91.100.30

0 EIS 2006

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

October 2006 Price Group 5

—. -...—--——_

Planning, Housing and Prefabricated Construction Sectional Committee, CED51

FOREWORD

This Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, afier the draft finalized bythe Planning, Housing and Prefabricated Construction Sectional Committee had been approved by the CivilEngineering”Division Council.

A series of National Standards on the cellular concrete have been formulated, so as to provide standard productsfor the construction of buildings. This standard for cellular concrete floor and roof eIements has been brought outin order to guide both the manufacturers and users of these elements.

In addition to the physical properties and other general requirements for the precast autoclave reinforced cellularconcrete floor and roof slabs, the specification gives structural requirements essential to ensure safe performanceof slabs under flexural loading without specifying the detailed method of design. The detailed method for thedesign of these members is not within the scope of this standard. As in any other precast concrete products, whichare mass produced, the detailed design of the elements is not in the hands of the user but is only in the hands of themanufacturers. Therefore, from the user’s angle, it would be more useful if any additional requirements regardingthe performance and loading coupled with acceptance tests are included in the specification. Suitable precautionarymeasures, such as use of appropriate coatings, maybe taken for exposed surfaces of autoclave reinforced cellularconcrete slabs.

This standard was first published in 1971. This first revision has been brought out to incorporate the changesfound necessary in light of the use of this standard since its first publication. Following are the major changesincorporated in this revision:

a)

b)

c)

d)

e)

o

g)

References to all cross-referred Indian Standards have been updated,

Only relevant requirements for sand have now been specified,

Use of 53 grade ordinary Portland cement has been permitted,

Sizes of slabs have been rationalized in line with current practices,

Guidance for preferred modular dimensions has been given,

Requirement of minimum cover to reinforcement has been increased from 10mm to 15 mm, and

Provision for ensuring structural integrity of the whole structure has been incorporated.

In the formulation of this standard due weightage has been given to international co-ordination among the standardsand practices prevailing in different countries in addition to relating it to the practices in the field in this country.

The Composition of the technical committee responsible for the formulation of this standard is given in Annex C.

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 accordancewith IS 2: 1960 ‘Rules for rounding off numerical values (revised’. The number of significant places retained inthe rounded off value should be the same as that of the specified value in this standard.

Indian Standard

AUTOCLAVE REINFORCED CELL

IS 6073:2006

ULAR CONCRETEFLOOR AND ROOF SLABS — SPECIFICATION

(First Revision)

1 SCOPE

This standard covers the requirements for autoclavereinforced cellular.concrete floor and roof slabs, havingdensity above 450 and up to 1000 k#m3.

2 -REFERENCES

The Indian Standards listed in Annex A containprovisions which, through reference in this text,

constitute provisions of this standard. At the time ofpublication, the editions indicated were valid. Allstandards are subject to revision, and parties toagreements based on this standard are encouraged toinvestigate the possibility of applying the most recentedit ions of the standards indicated in Annex A.

3 TE-RMINOLOGY

3.0 For the purpose of this standard, the followingdefinitions shall apply.

3.1 Autoclave Cellular Concrete — The materialconforming to this standard and consisting of aninorganic binder (such as lime or cement or both) incombination with a finely ground material containingsilicon dioxide (such as sand), gas generating material(for example, aluminium powder), water and harmlessadditives (optional); and steam cured under highpressure in autoclaves.

3.2 Basic Module — The fundamental module usedin modular co-ordination, the sin of which is selectedfor general application to building and its components.

NOTE — The value of the basic module has been chosen as100 mm for the maximum flexibility and convenience. Thesymbol for the basic module is M.

3.3 Design Load — The permissible superimposedload (excluding the self weight of the slab) on the flooror:roofunder normal service conditions. For the floorslab the superimposed load will include the imposedload on floor and dead loads inchding flooring andceiling finish, if any likely to be carried by the floor.For the roof slab, the superimposed load will includethe imposed load on the roof (including snow orrainwater load) and dead loads including roof andceiling finish likely to be carried by the roof.

4 MATERIALS

4.1 The major materials for the manufacture ofautoclave reinforced cellular concrete floor and roofslabs shall be as given in 4.2 to 4.7.

4.2 Cement

Cement used for manufacturing shall be 33 gradeordinary Portland cement conforming to IS 269 or43 grade ordinary Portland cement conforming toIS 8112 or 53 grade ordinary Portland cementconforming to IS 12269 or Portland slag cementconforming to IS 455 or Portland, pozolana cementconforming to IS 1489 (Part 1) or IS 1489 (Part 2).

4.3 Lime

Lime shall satisfi the requirements for Class C limespecified in IS 712.

4.4 Sand

Sand shall be finely ground silicious sand and itsrequirements shall be as follows:

Proper& Requirement

Slit content 3 percent, MaHumus 3 percent, MmSiOz content 80 percent, MinChloride 0.025 percent, Ma.Loss.on ignition 5 percent, MaMica “Inaccordance with IS 383

4.5 Fly Ash

Fly ash shall conform to IS 3812 (Part 1).

4.6 Granulated Blast Furnace Slag

tianulated blast furnace slag shall conform toIS 12089.

4.7 Water

Water shall cQnform to the requirements given in 5.4of IS 456.

4.8 Pigment

The quality of pigment, if required for aesthetic

1

1S 6073:2006

purposes, shall be accQrding to the requirementsspecified by the purchaser. Alternatively themanufacturer shall declare to the purchaser thecomposition and quality of the pigment.

4.9 Reinforcement

Reinforcement shall be any of the following:

a) Mild steel and medium tensile steel barsconforming to Grade I of IS 432 (Part 1),

b) Hard-drawn steel wire conforming to IS 432(Part 2),

c) High strength deformed steel bars and wiresconforming to 1S 1786, and

d) Welded wire fabric conforming to IS 1566.

4.9.1 Spot welding may be adopted for keeping thereinforcement in position.

5 CLASSIFICATION AND DESIGNATION

5.1 Classification

Autoclave reinforced cellular concrete roof and floorslabs shall be classified into the following five classeson the basis of their oven-dry density (withoutreinforcement) and the compressive strength (see also 8and Table 2).

Class A

‘Class B

Class C

Class D

Class E

Gross density over 850 k~m’ and up to1000 k~m’ and compressive strength7 N/mm*, Min

Gross density over 750 k#m3 and up to850 kg/m3 and compressive strength6 N/mm2, Mjn

Gross density over 650 k#m3 and up to750 kg/m3 and compressive strength5 N/mm2, Min

Gross density over 550 k~m’ and up to650 kg/m3 and compressive strength3.5 N/mm2, Min

Gross density over 450 k#m3 and up to550 kg/m3 and compressive strength2 N/mm2, Min

5.2 Designation

The floor and roof slabs shall be designated byindicating the compressive strength in N/mm*, the loadbearing capacity (design load) in N/mm* and the length(m), breadth (mm), and thickness (mm) respectively,for example:

a) For Floor Slab

FS/7/2 300 x I x b x t will mean a floor slabof compressive strength of 7 N/mm*(of ClassA with a gross density 850 k#m3to 1000 k~m3),load bearing capacity of 2300 N/m*, 1mmlong, b mm wide and tmm thick.

b) For Roof Slab

RS/5/l 100 x 1x b x twill mean a roof slab ofcompressive strength of 5 N/mm*(of Class Cwith a gross density 650 k#m3 to 750 k~m3),load bearing capacity of 1 100 N/m2, 1mmlong, b mm wide and tmm thick.

6 SIZES

6.1 The dimensions of autoclave reinforced cellularconcrete floor and roof slab shall be arrived at keepingin view the required load bearing capacity and theconsiderations relating to modular co-ordination.

6.1.1 The preferred dimensions shall be as given below(see Fig. 1):

a) Length lmto6mb) Width 300 mm to 600 mmc) Thickness 75 mm to 250 mm with

increments of 25 mm

Sizes other than thosespecified above may also be usedby mutual agreement between the purchaser and thesupplier.

6.1.2 The preferred dimensions (modular) may alsobe taken as follows:

a) Length Nominal length shall be inmultiples of 1 M

b) Width Nominal width shall be inmultiples of O.5M

c) Thickness Thickness shall be in multiplesOfo.1 M

6.2 Tolerances

Tolerances for dimensions shall be as follows:

a) Below and up to 500 mm *2 mmb) Over 500 mm +5 mm

6.3 Form Tolerances

The form tolerances (see Fig. 2) for the floor and roofslabs shall be as in Table 1.

7 MANUFACTURE AND FINISH

7.1 Reinforcement

Reinforcement shall be located in the unit according tothe design. The reinforcement shall be effectivelyprotected against corrosion by suitable coating. Theprotective coating shall not be damaged during placingand casting, autoclavation and other manufacturingprocess. The applied protective coating shall conformto the requirements given in IS 6441 (Part 4). Inaddition to protecting the reinforcement againstcorrosion, it shall be ensured that the cellular concrete

2

.

r WIDTH1

LENGTH

THICKNESS

L

FIG. 1 illustrating DIMENSIONSOF FLOOR AND ROOF SLABS

#

AsTWIGHTEDGE

(a)/ ////

EDGE(b)

r

\ SQUARE(c)

FIG. 2 ILLUSTRATINGFORM TOLERANCESOF FLOOR AND ROOF SLABS

Table 1 Form Tolerances for Floor and Roof Slabs

(Clause 6.3)

SINo,

(1)

i)

ii)

iii)

Details

(2)

Flatness:WarpTorsion

Edge straightness (does not apply to end edges):

In a plane perpendicular to the plane of the unit[see (a) of Fig. 2]

In the plane of the unit [see (b) of Fig. 2]

Squareness of angle between adjacent faces

Tolerance, mm.

Distance Between Measuring Pins. m Entire kngth/ %

0.25 I .0 2.0 0.5

(3) (4) (5) (6) (7)

●2 %4 *6 — —— — — — 0.1 percent, Max

*1 ●2 ●3 — —

— — — — *3— — — *5 —

[see (c) of Fig. 2]

3

IS 6073:2006

cover to the steel shall not+e less than that necessaryto attain the required fire resistance grading and in anycase not less than 15 mm.

7.1.1 The main reinforcement shall be:

a) at least 3 bars for spans up to 2 m,

b) at least 4 bars for spans up to 5 m, and

c) at least 5 bars for spans longer than 5 m.

For wider slabs, a correspondingly larger number ofbars shall be placed.

7.1.2 The reinforcement of the tension and compressionzones shall lie after the setting of the concrete in such away that the concrete cover is at least 15 mm and thestatic effective height shall, in no case, fall short bymore than 5 mm.

7.2 Formation of Cells of Cellular Concrete

The aerated structure or the cells of the cellular concreteslabs are formed by generation of a gas by chemicalaction with the mix prior to hardening with the aid ofsuitable chemical foaming agents and mixing devices.The cells inthe slab shall be distributed evenlythroughoutits volume.

7.2.1 Method of Ay~oclaving

After accurate proportioning, the raw materials aremixed in a mechanical mixer to form amass of uniformcolour. Water and aluminium powder in accuratelymeasured quantity are then mixed to the mix and thefinal mix is then poured into the moulds quickly. Dueto chemical reaction between the binding material andwater, the mass overgrows over the edges and expandslike a dough and simultaneously hardens. When thechemical reaction is completed as indicated bycessation of the growth phenomenon, the portionbulging out of the mould is cut off to obtain the blockof the desired size and shape. The mould is thenintroduced into the autoclave, where it is subjected tosteam pressure of 0.7 N/mm* and temperature ofabout 185°C.

7.3 Finishes

The faces of the slabs shall be rectangular, oppositefaces shall be parallel and all edges shall be straight.The different faces shall be at right angle. The slabsshall be free from all defects liable to affect adverselytheir suitability for use.

7.4 Joints

Each floor and roof slab shall be provided with tongueat one side and groove at the other side to match withthe correspond ing tongue and groove in the adjacentunit; alternatively, the slab may have a groove at eithersides matching with the groove in the adjacent unit to

permit easy filling with cement mortar, or some othersuitable provisions may be made to allow for thetransfer of force from unit to unit. The longitudinaledges of the bottom face of each slab shall bechamfered.

8 PHYSICAL PROPERTIES

Autoclave reinforced cellular concrete floor and roofslabs shall have the properties specified below:

a)

b)

c)

d)

e)

Density of Element (Excluding Reinforce-men~ — Itshall be in the range specifiedin 5.1 when tested in accordance with IS 6441(Part 1).

Drying Shrinkage — Itshall not be more than0.09 percent when tested in accordance withIS 6441 (Part 2).

Residual Water Content at the Time ofDelivery to the User — Itshall be declaredby the manufacturer.

Compressive Strength and ThermalConductivity — They shall be as given inTable 2 when tested in accordance withIS 6441 (Part 5) and IS 3346 respectively.

Fire Resistance — Itshall not be less than 2 hwhen tested in accordance with IS 3809.

Table 2 Compressive Strength and ThermalConductivity

(Clauses 5.1 and 8)

class of Compressive ‘rherrnal Conductivity in

Slab Strength, Mirr Air-Dry Conditioo, &f(r.r(N/mm2) (kcal/m/h/°C)

(1) (2) (3)

Class A 7 0:36Class 11 6 0.32Class C 5 0.26Class D 3.5 0.21

Class E 2 0.18

NOTE — Tl~e compressive strength shall be the average ofthree sample cubes tested and the lowest individual value shallnot bc less than 85 percent of the required average value.

9 STRUCTURAL REQUIREMENTS

9.1 Loading

The slabs shall be designed for loading in accordancewith IS 875. However, the dead load of the slab propershall be assessed in accordance with densities specifiedin 5.1 plus the mass of reinforcement.

9.2 Design Load and Deflection

The manufacturer shall indicate the design load(see 3.3) for which the floor and roof slab has beendesigned. When tested in accordance with the methodgiven in Annex B, the deflection of the slab under the

IS 6073:2006

design load and the self weight of the slab shall not bemore than 1/300 of the effective span.

9.3 Ultimate Load

The manufacturer shall indicate the ultimate load forthe floor and roof slab, which in any case shall not beless than the following:

Ultimate load = (1.5 x Design Dead Load) +(2.2 x Design Imposed Load)

9.3.1 The ultimate load, when tested in accordancewith the method given inAnnex B, shall neither be lessthan the value indicated in 9.3 nor less than the valueindicated by the manufacturer.

9.4 While using the autoclave cellular concrete floorand roof slabs, the structural integrity of the wholestructure has to be ensured. For various applications,for ensuring diaphragm action, the provisions specifiedin IS 1893 (Part 1) and IS 4326 shall be followed.

10 STORAGE AN D HANDLING

Cellular concrete slabs shall be stock-piled on planksor other supports free from contact with the ground.The slabs of different densities and shapes shall be keptin separate stacks. The slabs shall be handled with careaccording to the instructions of the manufacturer anddamaged slabs shall be rejected. Slabs shall not be cutwithout permission of the -designer or engineer-in-charge. Such permission shall be granted by designeror engineer-in-charge after finding out the suitabi Iityof the slab for the intended purpose and, if necessary,in consultation with the manufacturer.

11 MARKING

11.1 Each slab shall be clearly and permanently markedwith the following information on the face not visiblein actual use in the structure:

a) Identification of the source of manufacture,

b) Year of manufacture,

c) Designation,

d) The words ‘Do not Cut’, and

e) The word ‘Top’ on the face of the slab.

11.2 The manufacturer shall provide technical literaturecontaining irtformation on:

a) the design load and the deflection on designload,

b) the ultimate load,

c) residual water content on deliveryi

d) the provisionsfor making holes,

e) the detailed storage and handling instructions(see Note), and

~ the thermal conductivity of different classesof products.

NOTE — Unsuitable storage and handling afier deliverycan cause permanent deformation in the slab, especiallywith regard to torsion and warp.

11.3 BIS Certification Marking

Each slab may also-be marked with the Standard Mark.

11.3.1 The use of the Standard Mark is governed bythe provisions of the Bureau of Indian Standards Act,1986 and the.Rules and Regulations made thereunder.The details of conditions under which the Iicence forthe use of the Standard Mark may be granted tomanufacturers or producers may be obtained from theBureau of Indian Standards.

12 COST OF TESTS AND MANUFACTURER’SCERTIFICATE

12.1 The manufacturer shall arrange to maintainproduction control measures, so that the floor and roofslabs conform to the requirements of this standard and,if requested, shall apply a certificate to this effect tothe purchaser or his representative.

12.1.1 In case the slab does not possess the requiredload-carrying capacity in certain positions, themanufacturer shall mark the slab in a way, which makesclear in what position it should be handled, assembledand used. Slabs which have to be supported or lifted,at special points, during storage or in handling, shallbe furnished with necessary markings. Slabs intendedfor special hole making shall be marked as to wherethe holes may be made.

12.2 If the purchaser or his representative requiresindependent tests, the samples shall be taken before orimmediately after delivery at the option of the purchaseror his representative and the tests shall be carried outin accordance with this standard.

12.3 Unless otherwise specified in the enquiry or order,the cost of the test shall be borne as follows:

a)

b)

By the manufacturer in the event of the resultsshowing that the slabs do not conform to thisstandard, or

By the purchaser in the event of the resultsshowing that the slabs conform to thisstandard.

13 SAMPLING AND CRITERIA FORCONFORMITY

13.1 Unless otherwise agreed to between the purchaserand the supplier, the method of drawing representativesamples of the slabs and the criteria for conformity shallbe as given in 13.2 to 13.5.2.

5

IS 6073:2006

13.2 Lot

In any consignment, all slabs of the same class (see 5.1)and size and from the same batch of manufacture shallbe grouped together into a minimum number of groups

. of 500 slabs or part thereof. Each such group shaIlconstitute a lot.

13.3 From each lot, a sample of ten slabs shall beselected at random. In order to ensure randomness ofselection, all the slabs in the lot may be arranged in aserial order. Starting from any random slab, every rthslab may be selected till ten slabs are included in thesample; r being the integral part of N/l O, where N isthe lot size.

13.4 Number of Tests

13.4.1 All the ten slabs shall be checked for dimensionsand inspected for visual defects.

13.4.2 Out of the ten slabs, two slabs shall be subjectedto the test for design-load deflection and cracking loadtest, the sample from these two slabs after the designload deflection and ultimate load test shall be testedfor compressive strength (two samples), density (twosamples), drying shrinkage (two samples) and residual

IS No.

269:1989

383 : 1970

432

(Part 1): 1982

(Part 2): 1982

455:1989

456:2000

water content (one sample). One slab shall be subjectedto test for thermal conductivity.

13.5 Criteria-for Conformity

The lot shallbe considered as conforming to requirementsof this standard if the conditions mentioned in 13.5.1and 13.5.2 are satisfied.

13.5.1 Dimensions and Visual Defects

The number of slabs with dimensions outside thetolerance limit andor with visual defects, among tenslabs inspected shall be not more than one. Hthe numberof such slabs exceeds one, all slabs in the lot shall betested for these requirements and those not satisfyingthe requirements shall be.rejected.

13.5.2 Other Tests

All the samples tested for other tests shall satisfy therequirements of the concerned test. If one or moresamples fail, twice the number of samples originallytested shall be selected from the concerned lot, andsubjected to the test. If there is no failure among thesesamples, the lot shall be considered to have satisfiedthe requirements of this test.

ANNEX A

(Clause 2)

LIST OF REFERRED INDIAN STANDARDS

Title

Specification for 33 Grade ordinaryPortland cement ~ourth revision)

Specification for coarse and fineaggregates from natural sources forconcrete (second revision)

Specification for mild steel andmedium tensile steel bars and hard-drawn steel wire for concretereinforcement:

Mild steel and medium tensile steelbars (third revision)

Hard-drawn steel wire (thirdrevision)

Specification for Portland slagcement ~ourth revision)

Code of practice for plain andreinforced concrete (third revision)

IS No.

712:1984

875

(Part 1): 1987

(Part 2): 1987

(Part 3): 1987

(Part 4): 1987

(Part 5): 1987

1489

(Part 1): 1991

(Part 2): 1991

Title

Specification for buildinglimes (thirdrevision)

-Code of practice for design loads(other than earthquake) for buildingsand structures:

Dead loads—Unit weightsof buildingmaterial and stored materials (secondrevision)

Imposed loads (second revision)

Wind loads (second revision)

Snow loads (second revision)

Special loads and load combinations(second revision)

Specification for Portland pozzolanacement:

-Flyash based (third revision)

Calcined clay based (third revision)

6

.

IS 6073:2006

IS No.

1566:1982

1786:1985

1893 (Part 1) :2002

3346: 1980

3809:1979

3812 (Pall 1):~oo3

Title

Specification for hard-drawn steelwire fabric for concrete reinforcement(second revision)

Specification for high strengthdeformed steel bars and wires forconcrete reinforcement (thirdrcwision)

Criteria for earthquake resistantdesign ofstructures: Part 1 Generalprovisions and buildings

Method for the determination ofthermal conductivity of thermalinsulation materials (two slabguarded hot plate method) ~irstrevision)

Specification for fire resistance testfor structures @rst revision)

Specification for pulverized fuel ash:Part 1 For use as p-ozzolana incement, cement mortar and concrete(second revision)

IS No.

4326:1993

6441

(Part 1): 1972

(Part 2): 1972

(Part 4): 1972

(Part 5): 1972

8112:1989

12089:1987

12269:1987

Title

Code of practice for earthquakeresistant design and construction ofbuildings (second revision)

Methods of test for autoclavecellular concrete products:

Determjaation of unit weight or bulkdensity and moisture content

Determination of drying shrinkage

Corrosion protection of steelreinforcement in autoclave cellularconcrete

Determination of compressivestrength

Specification for 43 Grade ordinaryPortland cement @rst revision)

Specification for granulated slag formanufacture of Portland slag cement

Specification for 53 grade ordinaryPortland cement

ANNEX B

(Clauses 9.2 and 9.3.1)

DEFLECTION AND ULTIMATE LOAD TEST FOR AUTOCLAVE REINFORCEDCELLULAR CONCRETE FLOOR AND ROOF SLABS

B-1 SELECTION

B-1.l The sample shall be selected in accordancewith 13.

B-1.2 The sample at the time of testing shall haveresidual water content as indicated in 8(c), but it shallnot be less than 10 percent by weight.

B-2 DEFLECTION

B-2.1 The slab shall be placed on -two supports, thecentre-to-centre distance between the supports(called effective span) being equal to the effective spanused in the calculations and as indicated by themanufacturer.

B-2.2 The slab shall be loaded for half an hour withhalf the design load; this load being applied throughtwo individual weights at the outside quarter points ofthe effective span.

B-2.3 Afier half an hour without removing the loadapplied in B-2.2, the balance half of the full designload is applied through the quarter points of the span.

‘B-2.4 The total design load shall be kept in positionfor half an hour after which the sample shall beexamined for any cracking and maximum deflection atmid-span of the slab fQrthe full load (design imposedload + self weight of slab) shall be measured.

B-2.5 If the sample has cracked or if the maximummeasured deflection is more than 1/300 of the effectivespan, the sample shall be considered to have failed thetest.

B-3 ULTIMATE LOAD

Unless cracks-have occurred under the design load, thesample as loaded in B-2.4 shall be loaded further insuitable increments of load till the slab fails. The totalload at failure shall be considered as the ultimate load.

7

1S 6073:2006

ANNEX C

(Forewor~

COMMITTEE COMPOSITION

Planning, Housing and Prefabricated Construction Sectional Committee, CED51

Organization

IIIpersonal capacity (P-233/3, Station House, Oficers Enclave,

Air Force Station, Rajokri, Ne\v Delhi 110 038)

Andhra Pradesh Housing Board, Hyderabad

B. G Shirke Construction Technology L!mited, Pune

Bharat Heavy Electricais Ltd, New Delhi

Bhardwaj Bhardwaj & Associates (P) Ltd. “New Delhi

Builders Association of Indi% Mumbai

Building Materials and Technology Promotion Council,New Delhi

Central Building Research Institute (CSIR), Roorkee

Central Public Works Department, New Delhi

Centre for Application of S&T to Rural Areas, Indian Instituteof Science. Bangalore

City and industrial Development Corporation of MaharashtraLimited, Navi Mumbai

Delhi Development Authority, New Delhi

Department of Science & Technology (Ministry of Science& Technology), New Delhi

Development Alternatives, New Delhi

Directorate General Border Roads, New Delhi

Engirrccr-in-ChieFs Branch, Army Headquarters, New Delhi

Engineering Consultants (India) Ltd, New Delhi

Fly Ash Utilization Programme, TIFAC, Department of Science& Technology. New Delhi

Himachal Pradesh and Urban Development Housing Board,Shimla

Ilindustan Prefab Limited, New Delhi

IIuusing and Urbaa Development Corporation Limited,New Delhi

I[ousing Department. Government of Meghalaya, Shillong

HSCC (India) Limited, Noida

Institute of Town Planners, lndia, New”Delhi

Kolkata Metropolitan Development Authority, Kolkata

Larsen & Toubro Limited, Chennai

Maharashtra Housing and Area Development Authority,Mumbai

Representative(s)

S~RJ V. SURESH(Cllairnlan)

REPRESENTATIVE

Stau V. G JANA

SHtUYWESHP. WwE(A/lernafe)

SHM K. VEEW RAGHAVACHARY

Stun S. PAL(Allernate)

SHRIA. BWRDWAJ

SHRI S. K. CHOUDHURY

SHJUN. KRISHNARAJ(Alfernafe)

SURI R. K. CELLY

SHU ASHOK KUMAR

SHRI S. K. NEG[ (A//ernate)

SHRI S. C. BNAnA

Strtu R. S. KAusNAL(A/ternafe)

DR K. S. JAGDISH

DRR. V. VEWTARAMA MuDy(A/ternafe)

StrtG A. R. JAMSEKARSHRI G L. CHOPRA(Alfernate)

ENGINEERMEMBER

SHRI K. R. S. KRISHNAN

REPWSENTATIVE

SHRI VINOD KUMAR

SHRI T. K. SAHA

SHRi V. K. JAJTLEY(Alternate)

Susi V. K. DOGRA

SHRI NARSNDERPRATAP(A//ernafe)

DR VIMAL KUMAR

DR C. L. VERMA (A/ternate)

REPR~SENTATIVE

SIIRI HMARI LAL

SHRI M. KUNDU (A//errra/e)

DR P. S. RANA

EXECUTIVE DIREmOR (A/ternafe)

EX-DIRECTOR

SHRI UDAI RAVI

SHRI SANJAYMUKHOPADHVAY(Alferrrate)

Dtr S. K. KULSHRWTHA

SHRI S. N. CHATTERJEE

StlRi K. P. RAGHAVAN

SHSUS. KANAPPAN(Alfernafe)

R~Pw5ENTATiW

8

Organization

1S 6073:2006

Representative(s)

Ministry oflJrban Employment & Poverty Alleviation,New Delhi

Municipal Corporation of Delhi. Delhi

National Co-operative Housing Federation, New Delhi

National Council for Cement and Building Materials,Ballabgarh

National Housing Bank, New Delhi

National Real Estate Development Council, New Delhi

Public Works Department, Jaipur

Raj Rewal and Associates, New Delhi

S. K. D’as and Associated Architects, New Delhi

School of Planning and Architecture, New Delhi

Shirish Pate] and Associates Consultants Pvt Limited,Mumbai

Siporex India Limited, Pune

Structural Engineering Research Centre (CSIR), Chennai

Tamil Nadll Slum Clearance Board, Chennai

Tandon Consultants Pvt Limited, New Delhi

The Indian Institute of Architects, Mumbai

The Institution of Engineers (India), Kolkata

Town and Country Planning Organization, New Delhi

in personal capacity (E-30, Ekfa Apartments, Saket,Ne\v Delhi 110 01~

BIS Directorate General

SHru D. S. NEGI

SHJUZILE SINGHDISHODIA (A//ernafe)

SHRI RAW DASS

REPRESENTATIVE

SHRI V. V. ARORA

SHN SAnstr SHARMA (Alternate)

SHRI P. K. KAUL

SHRI SUNIL BER~ (A Iterna/e)

BRIG (RETD) R. R. SINGH

SHRI SUMmJfiA (A/fernate)

SHRI G P. SHARMA

REPRESENTATIVE

PROF Suaur SAHA

PROF (DR) NEELiMA Rismro (Alternate)

SIIRI Srnus}i B. PATEL

SHru P. H. SHRINIVASACHAR(Alfernate)

SHRI D. N. DHOGDESHRI,D. V. KUL~AKNI (A//ernafe)

SIIRI T. S. KR15HN~MooRT[iY

DR M. NEELAMEGAM(A/fernate)

CHIEF ENGINEER

SHRI VINAY G~A

StrruALOK PANDEY (Alterrra/e)

SHRI BALBIR VERMA

SHRI DIWA KUSH (Alternate)

SHst P. B. VIJAY

SHRI J, B. KSNIRSAGAR

SIiRI P. C. BHARDWAJ(A //ernate)

SHRI M. N. JOGLEKAR

St+RlJ. C. ARORA, Director and Head (Civ Engg)[Representing Director General (~x-o~ficio)]

Member Secretaries

SNRI SANJAYPANT

Joint Director (Civ Engg), BIS&

SHRI AMAN DEEP

Assistant Director (Civ Engg), BIS

9

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promoteharmonious development of the activities of standardization, marking and quality certification of goodsand attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any formwithout the prior permission in writing of BIS. This does -not preclude the free use, in the course ofimplementing the standard, of necessary details, such as symbols and sizes, type or grade designations.Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates thaj changes are needed, it is taken up for revision. Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of‘BIS Catalogue’ and ‘Stindards : Monthly Additions’.

This Indian Standard has been developed from Doc : No. CED51 (6070).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

BUREAU OF ~DIAN STANDARDS

Headquarters :

Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telegrams : MrmaksansthaTelephones :23230131,23233375,2323 9402 (Common to all ofices)

Regional Offices : Telephon&

Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg

{

2323 “7617’NEW DELHI 110002 23233841

Eastern : 1/14 C.I.T. Scheme VII M, V. I. P. Road, Kankurgachi

{

23378499,23378561KOLKATA 700054 23378626,23379120

Northern : SCO 335-336, Sector 34-A, CHANDIGARH 160022

{

26038432609285

Southern : C.I.T. Campus, IV Cross Road, CHE~AI 600113

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22541216,2254144222542519,22542315

Western : Manakalaya, E9 MIDC, Marol, Andheri (East) .

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‘Rlnkd at Rabhat Otiset Ress, New Dehi-2