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है”ह”ह

IS 15058 (2002): PVC Water-Stops at Transverse ContractionJoints for Use in Masonry and Concrete Dams [WRD 9: Damsand Spillways]

IS 15058:2002

W?a%7mm

f%l$au%m-latiwidP-T+i@m-aqRQT*d@i

w MMh-FT iwm-mlrk

Indian Standard

PVC WATER-STOPS AT TRANSVERSECONTRACTION JOINTS FOR USE IN MASONRY

AND CONCRETE DAMS — SPECIFICATION

ICS 23.040.45; 93.160

.. “

0 BIS 2002

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

June 2002 Price Group 3

1

-+!

Dams and Reservoirs Sectional Committee, WRD 9

FOREWORD

This Indian Standard was adopted by the Bureau of Indian Standards, afler the draft finalized by the Dams andReservoirs Sectional Committee had been approved by the Water Resources Division Council.

The contraction joints in masonry and concrete dams provide passages through the dam which unless sealed,would permit the leakage of water from the reservoir to the downstream face. To check this leakage, water-stopsare installed in the joints adjacent to the upstream face. The recent advances in the manufacturing of PVC haveincreased confidence in the use of this material for water-stops in dams. This standard has been formulated tocover the complete specification for PVC water-stops used in the masonry and concrete dams. The method ofuse of such water-stops has been covered in IS 12200:2001 ‘Code of practice for provision of water-stops attransverse contraction joints in masonry and concrete dams’.

There is no 1S0 standard on the subject. This standard has been prepared based on the data received fromindigenous manufacturers’ and also taking into consideration the practices prevalent in the field in India.

The Composition of the Committee responsible for the formulation of this standard is given in Annex E.

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 withIS 2: 1960 ‘Rules for rounding off numerical values (revise~.’ The number of significant places retained in therounded off value should be the same as that of the specified value in this standard.

.,

IS 15058:2002

Indian Standard

PVC WATER-STOPS AT TRANSVERSECONTRACTION JOINTS FOR USE IN MASONRY

AND CONCRETE DAMS — SPECIFICATION

I SCOPE

This standard covers the requirements for PVC water-stops used in masonry and concrete dams to checkleakage of water.

2 REFERENCES

The Indian Standards listed below contain provisionswhich through reference in this text, constituteprovisions of this standard. At the time of publication,the editions indicated were valid. All standards aresubject to revision, and parties to agreements basedon this standard are encouraged to investigate thepossibility of applying the most recent editions of thestandards given below:

IS No.

8543(Part 4/See 1):1984

9766:1992

Title

Methods of testing plastics : Part 4Short term mechanical properties,Section 1 Determination of tensilepropertiesFlexible PVC compounds

IS No.

13360(Part 5/See 11):1992

Title

Methods of testing plastics : Part 5Mechanical properties, Section 11Determination of indentation hard-ness of plastics by means ofdurometer (Shore hardness)

3 PVC WATER-STOPS

3.1 Materials

The water-stop should be fabricated from a plasticcompound, the basic resin of which shall be polyvinylchloride. The compound shall contain additionalresins, plasticizers, inhibitors or other materials suchthat when the material is compounded, it shall meetthe requirements given in this standard.

3.2 Test Requirements

PVC water-stops shall meet the requirements specifiedin Table 1.

3.3 The colour of water-stops shall be black or white.

Table 1 Requirements for PVC Water-Stops

(Clause 3.2)

slNo.

(1)

Oii)

iii)

iv)

v)

vi)

vii)

Characteristic

(2)

Tensile strength, Min

Elongation, &fin

Hardness (Shore A), A&r

Water absorption, percent by mass, Max

Cold bend temperature at which samplesdoes not crack, Min

Accelerated extraction testia) Tensile strength, Min

b) Elongation, MitrStability in effects of alkalies testa) Weight increase at 7 days, pereent by

mass, Maxb) Weight decrease at 7 days, pereent by

mass, Maxc) Change in hardness at 7 days (Shore A)d) Weight increase at 28 days, Maxe) Weight decrease at 28 days, MUX

t) Dimension change

Requirements

(3)13.8 Mpa

285%

65

0,6

-25°C

10.3 Mpa280%

}

10.25 -

0.10

*5o.qo~o

().30’%0

& 1“/0

Method of Test, Ref to

(4)

IS 8543 (Part 4/See 1)

IS 8543 (Part 4/See 1)

1S 13360 (Part 5/See 11)

Annex A of this standard

Annex G of IS 9766

Annex B of thk standard

1

Annex C of this standard

1

IS 15058:2002

4 SHAPE AND DIMENSIONS

4.1 The cross-section of PVC water-stops shall varydepending upon the water head and site conditions.However a typical cross-section of PVC water-stopsis given in Fig. 1.

NOTE — The length shall be as per user’s requirement to ensureminimum nomberofjoints.

4.1.1 Tolerances on Dimensions

The permissible to tolerance on widthshall be as follows:

and thickness

Width — + 10mm

+ZmmThickness — _ o

5 WORKMANSHIP AND FINISH

5.1 The surface of water-stop shall be ribbed. Theoutside edges shall be at the level of the central bulb.

5.2 The water-stops shall be free from blisters,pinholes, cracks and embedded foreign matters.

6 SAMPLING AND CRITERIA FORCONFORMITY

The sampling procedure to be adopted and criteriafor conformity shall be as given in Annex D.

7 PACKING

The water-stop shall be packed in coil form, the insidediameter of which shall not be less than 300 mm.

8 MARKING

8.1 The water-stops shall be marked with the followinginformation:

a) Size of the water-stops;

b) Name of manufacturer or trade-mark, if any;and

c) Month and year of manufacture.

8.2 BIS Certification Marking

The PVC water-stops may also be marked with theStandard Mark.

8.2.1 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 licence forthe use of the Standard Mark may be granted tomanufacturers or producers maybe obtained from theBureau of Indian Standards.

15, 45 I

I

N ---

All dimensionsin millimetres.

FIG. 1 TYPICAL CROSS-SECTION OF PVC WATER-STOIJ

2

IS 15058:2002

ANNEX A

[Table 1, S2No. (iv), col 4]

TEST FOR WATER ABSORPTION

A-1 TEST SPECIMENS

Three specimens shall be tested. The specimen shallbe of size 50 mm x 20 mm and of full thickness. Thespecimen shall be taken from the flat portion betweenany two ribs of the water-stops.

A-2 APPARATUS

A-2.1 Balance, with an accuracy of + 1 mg.

A-2.2 Oven, capable of being controlled at 50 + 2“C.

A-2.3 Containers, containing distilled water, or waterof equivalent purity.

A-2.4 Desiccator

A-2.5 Vernier Caliper

A-3 PROCEDURE

A-3.1 Dry the specimens for 24 + lh in the ovencontrolled at 50 + 2“C, allow to cool to ambienttemperature in the desiccator and weigh each specimento the nearest 1 mg (ml). Then place the specimen in

a container containing distilled water controlledat 27 * 2°C.

A-3.2 After immersion for 24+ 1h, take the specimensout from water and remove all surface water with aclean, dry cloth or with filter paper. Re-weigh thespecimens to the nearest 1 mg within 1 min of takingthem out from water (m2).

A-4 RESULTS

Calculate the water absorption for each specimen as apercentage by mass of initial mass, by the followingformula:

.Dxloo—

ml

where

m, = mass of dry specimen, and

mz = mass of specimen after immersion inwater.

Take the average value of water absorption for threespecimens.

ANNEX B

[Table 1, S1 No. (vi), col 4]

ACCELERATED EXTRACTION TEST

B-1 Conformance shall be detemnined on the averagetensile strength and elongation values for 5 specimensthat have been subjected to the accelerated extractiontreatment.

B-2 The extraction treatment shall be done as follows:

a) The specirlens shall be weighed and thentotally immersed, in a solution consisting of5.0 g CP (crystalline pure) sodium hydroxideand 5.0 g CP potassium hydroxide dissolvedin a litre of distilled water. The solution,which shall be renewed daily, shall bemaintained at 60-66°C and shall have airbubbled through it at the rate ofapproximately 380 bubbles per minute. After14 days of this treatment, the specimens shall

be removed daily, rinsed with water, surfacedried, air dried for 10 min and weighed, andthen placed again in a fresh solutionmaintained at 60-66°C temperature. Thedaily treatment shall be continued either forthe period necessary for the weight to becomeconstant (constant weight shall be assumedif the weight change in 3 consecutive daysdoes not exceed 0.05 percent of originalweight, or for a total period of 90 days(inclusive of first 14 days), whichever periodis shorter.

b) After this treatment, tensile strength andelongation test shall be carried out asdescribed in IS 8543 (Part 4/See 1).

3

IS 15058:2002

ANNEX C

[Table 1, S1No. (vii), COI 4]

STABILITY IN EFFECTS OF ALKALIES TEST

C-1 Conformance shall be determined from the resultof tests on specimens each 2.5 + 0.2 mm thick, 20 mmwide and approximately 150 mm long. The numberof specimens shall be such that the total weight of thespecimen material is between 75 gm and 125 gm.

C-2 For the test the specimens shall be weighedtogether, not singly, to the nearest milligram. Hardnessshall be measured in accordance with IS 13360(Part 5/See 11).

C-3 The alkali treatment shall be done as follows:

The specimens shall be totally immersed in a solution

consisting of 5.0 g CP (crystalline pure) sodiumhydroxide and 5.0 g CP potassium hydroxide dissolvedin one Iitre of distilled water. The solution shall bemaintained at 21-24°C and shall be replaced every7 days with fresh solution at the same temperature.At 7 and at 28 days the specimens shall be removed,rinsed with water, surface dried, air dried for 10 rein,and then checked for changes in weight anddimension. At 7 days, it shall also be checked for anychange in hardness. Weight changes shall be recordedas a percentage of the original weight and hardnesschange in durometer units.

ANNEX D

(Clause 6)

SAMPLING AND CRITERIA FOR CONFORMITY

D-1 SCALE OF SAMPLING D-1.2 Samples shall be selected and tested from each

D-1.l Lotlot separately for ascertaining its conformity orotherwise to the requirements of this specification.

In a consignment all the PVC water-stops of the same.

size and colour manufactured under essentially similarD-1.3 The number of PVC water-stops to be selected

conditions of production shall be grouped together toat random from a lot for different tests shall dependupon the size of the lot and shall be in accordance

constitute a lot.with CO11 and 2 of Table 2.

Table 2 Scale of Sampling and Permissible Number of Defective

No. of PVC Eor Dimensions,Water-Stops in Workmanship and Finish

the Lot/ A

Y

Sample Permissiblesize No. of

N Defective

(1) (!) (3)up to 100 5 0

101 to 150 8 0

151t0300 13 0

301 to 500 20 0

501 to 1000 32 1

1001 and above 50 2

No. of Samples, for Hardness,Tensile Strength, Elongation, Water

Absorption and Cold BendTemperature Tests

(4)

3

3

3

3

5

8

No. of Samplea, for AcceleratedExtraction Tests and Stability in

Effect of Alkali Tests

(5)

1

1

1

1

2

3

4

r,

* 6<-

IS 15058:2002

D-1.3.1 The PVC water-stops to selected from the lotshall be chosen at random. In order to ensure therandomness ofselection, random number tables shallbe followed. In case random number tables are notavailable, the PVC water-stops maybe selected fromthe lot in the following manner:

Starting ffom any PVC water-stops in the lot, the PVCwater-stops shall be counted as 1.2. .. ...,r and so onin one order, where r is the integral part of N/n (N andn being the lot size and sample size respectively). Everyrth PVC water-stops thus counted shall be withdrawnto constitute the samples.

D-2 NUMBER OF TESTS AND CRITERIA FOR>CONFORMITY

D-2.1 All the PVC water-stops selected accordingto D-1.3 shall be examined for dimensions,workmanship and finish. Any PVC water-stops failingin one or more of these characteristics shall beconsidered as defective. If the number of defectivefound ,in the sample is less than or equal to thecorresponding permissible number of def~tives givenin CO13 of Table 2, the lot shall be declared asconforming to these requirements, otherwise not,

D-2.1.1 In the case of those lots which have been found

unsatisfactory according to D-2.1 all the PVC water-stops may depending upon the agreement between thepurchaser and the supplier, be inspected for thesecharacteristics and the defective ones removed.

D-2.2 The lot having been found satisfactory forworkmanship, finish and dimensions accordingto D-2.1 shall then be examined for hardness, tensilestrength, elongation, water absorption and cold bendtemperature tests. The number of samples to be takenfor each of these characteristics is given in CO14 ofTable 2 and they shall be selected from those alreadyselected under D-1.3 and if necessary, from the lot.For each of the characteristics the various tests shallbe conducted on independent test pieces. The lot shallbe declared as satisfactory if it satisfies the relevantrequirements and none of the tests fails.

D-2.3 The lot which has been found satisfactoryaccording to D-2.2 shall then be subjected toaccelerated extraction tests and stability in effect ofalkali tests. The number of samples for each of thecharacteristics is given in CO15 of Table 2 and theyshall be selected from those which have been testedand found satishctory under D-2.2. The lot shall bedeclared satisfactory with respect to acceleratedextraction tests and stability in effect “ofalkali tests ifnone of the test fails.

..t--

IS 15058:2002

ANNEX E

(Foreword)

COMMITTEE COMPOSITION

Dams and Reservoirs Sectional Committee, WRD 9

Organization

Central Water Commission, New Delhi

Bhakra BerrsManagement Board, Chandigarh

Central Board of Imigation& Power,New Delhi

Central Soil & Material Research Station,New DelKl

Central Water & Power Research Station, Pune

Central Water Commission, New Delhi

Consulting Engineering Services (I) Pvt Ltd,14ewDelhi

Gammon India, Mumbai

Geological Survey oflndia, Lucknow

Indian Instituteof Technology,New DelKI

Irrigation &Waterways Dtrector@e,Govemmentof WestBengal, Kolkata

Irrigation Dqmrhm@ Govemmentof AM#ra PradmlLHyderabad

Irrigation Department, Govemmwnt of klary~ Chrmcligdt

Irrigation Dep@ment, Gover?mentofWkash&g Nasik

Irrigation &partment, Govewwnentof Ptmjab,Chan&gsrh

Irrigation Kkpartment,Government of UttarPradesh, Roorkee

Jaiprakash Industries Ltd, New Delhi

Kerala State Electricity Board, ThiruvananthapurarnNarmada & Water Resources Department, Government of Gujarat,

GwdirinagarNational Hydroelectric Power Corporation Ltd, Faridabad

National Institute of Hydrology, Roorkee

North Eastern Electric Power Corporation L@ New IMlhi

Public Works Department, Government of TmsiJNadu, Chennai

TeWlHydroDevelopmentCorporation, Noida

WatrxResources Departmnt, Governmentof Madhya Pradesh,Bhopal

BIS Directorate Generrd

Representative(s)

DR B. K. MITI’AL(Chairman)

CmF ENGSNESR(BHAKM DAM)

DIRECTOR(DESIGN)B&B DESIGNDrRECrORATE(Alfernafe)

f$HRIS. p. K.AUSHISHSrrruT. S. MURTHY(Afterna(e)

DIRECTOR

Smo A, K. DHAVAN(Alternafe)

SHRIR.M. KHATSUIOASFUUP. B. DEOLALIKAR(Alternate)

DIRECTOR(CMDD-N W&S)

DLRECTORI&sERvoraj OPMWI’IONDireCtOrate (Alternate)

SHRIM. K.NARASIMHAIYA

SrrsuS. S. NARANG(Alternate)

SHSUM. S. BISAIUA

SHMR. D. VARANGAONKAR(Alternate)

Smu G. K. KALSTHASHIUR. N. SINGH(Mterrrate)

HEAoeFmrECrvtLEwrrmasmGDEPAKTMSSW

SrauA. DASGUPTA

SW Ii. P. Crrmwwm(Altenrak)

CtirmErwrwmr(I&cAD)SWMWWNGENGSNSSR(DAMS)(Afkmzte)

NcaNEsR(PRorEcTs)r3rtmEDuw30R(EN @03zFUNG)(Alterrrute)

SummmNDINGENGINEER (MD)

ExmmvE ENGJNFER(MD+ (Alternate)

CHSEFEN~ (RSDD)DIRECTORDAMS(RSDD) (Alternate)

Cm ENGINEER(DAMDESIGN)smSmmNLSrNGENGINEER(DAMDFSIGNCIRCLS1)(Alternate)

SHRID. G. K.ADRADE

SHTUNARSNDRASINGH(Ahernate)

SW P, R. MALTIKASJUNA

SW S. M. CrrsrsBI(Alternate)

%U r.kORGSCHEXIYAN

CmEF ENGINESR(MEDIUM&MINOR)ANDAODL SECRETARY

SUPERINTENDINGENGINEER(CDO) (Alternate)

SHMK. S. NAGARAJA

DRS. M. SETH

DR P. K. MAHAPATU(Alternate)

SrnoUmALBORA

ENGINEER-UWHIEF

CHEF ENGINEER(Alternate)

SHRSL. K. BANSAL

SW A. K. RISHI

DIRECTOR(DAMS)(Alternate)

Smu S. S. SETHS,Director& Head (WRD)

[RepresentingDirector General (Iik-oflcio )]

Member-SecretarySW R. S. JUNEJA

Joint Director (WRD), BIS

6

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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 that 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 ‘Standards: Monthly Additions’.

This Indian Standard has been developed from Doc : No. WRD 9 (287).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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