IS 13026: bitumen mastic for flooring for industries handling LPG and other light hydrocarbon products

13 Pages·1991·1 MB·English

by  Bureau of Indian Standards

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in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
to the public, particularly disadvantaged communities and those engaged in the pursuit of
education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 13026 (1991): bitumen mastic for flooring for industries
handling LPG and other light hydrocarbon products [CED 5:
Flooring, Wall Finishing and Roofing]
“!ा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””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

IS 13026 : 1991
REAFFIRMED 2006

-
Indian Standard
BITUMEN MASTIC FOR FLOORING FOR
INDUSTRIES HANDLING LPG AND
OTHER LIGHT HYDROCARBON
PRODUCTS — SPECIFICATION
. . .
UDC 69253312: 662 767 013 5
© BIS 1991
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
April 1991 Price Group 3
AMENDMENT NO. 1 JANUARY 1993
TO
IS 13026: 1991 BITUMEN MASTIC FOR FLOORING
FOR INDUSTRIES HANDLING LPG AND OTHER
LIGHT HYDROCARBON PRODUCTS
SPECIFICATION
(Page 1,clause5.1.2,II"" 2)- Substnute 'carbon' for 'certain'.
(Page 1,clause 6.2,line 4)- Subsutute •5x 104ohms'for'5 x144ohms'
(eEDS)
ReprographyUDJI,BlS.NewDelhi,IIXha
Flooring, Wall Finishing and Roofing Sectional Committee, CED 5
FOREWORD
This Indian Standard was adopted by the Bureau ofIndian Standards.after the draft finalized by
the Flooring, Wall Finishing and RoofingSectional Committee had been approved by the CiVIl
Engineering Division Council.
This standard has been formulated witha view to laying down a new specification for bitumen
mastic Booring for areas where light hydrocarbon products are handled, In the petroleum
industry. bitumen mastic particularly ofanti-static, electncally conducting grade is used extensi
vely for the flooring ofLPG bottlmg plants and other such areas, to ensure that no sparks are
produced not only due to production of static electncity, butalso due to Impact of LPG cylinders
and other matallic objects with the Booring.
Birumen sui/ably incorporated wJth certammarenaiscan bemade /0acquire elecrncally conductive
and anti-stanc properties. One ofthe materials commonly used m bitumen mastics is carbonblack!
graphite.
It is knewn that for anti-static purposes, the discharge path through a product should normally
have an upper hmit of electrical resistance around 5 X 10' ohms to give adequate protection
against fire and dangerous electric shcck, If the equipment becomes defective when operated at
voltages i p to 250 V. Hence, the carbon blark/graphIte content rn the bitumen mastic should be
adjusted to this level. In addrncn to thrs the requirement ofimpact. sparking resistance can be
stated to be achieved if the finished floormg, Whilebeing sufficiently hard as to leave mmimum
local mdentatlons on Impact, should be resrlrent enough for these mdentations to recover and
substantially heal up in the course oftime. and also no spark IS produced due to such impact.
These properties have to be achieved by adjusting the proportion ofvarious mgradients m the
bitumen mastic.
This standard shall be read 10 conjunction With IS 8374: 1977Specification for bitumen mastic,
anti-static and electrically conducting grade, IS 1196: 1978Code of practice for laymg bitumen
mastic flooTlng. To provide guidance for preparation ofbase, laying of brturnen mastrc flooring
conforming to this standard, an Indian Standard IS 13974 : 1991'Code ofpractice for laying of
bitumen masuc flooring for mdustries handling LPG and other light hydrocarbon products' has
been formulated.
For the purpose of deciding whether a palticular requrrernent of thisstandard iscomphed With,
the final value, observed or calculated, expressing the result ofa test or analysis, shall be rounded
off in accordance with IS 2: 1960 'Rules for rounding offnumerical values (revised )'. The number
of significant places retamed in the rounded off value should be the same as that of the specified
value in this standard.
IS 13026: 1991
Indian Standard
BITUMEN MASTIC FOR FLOORING FOR
INDUSTRIES HANDLING LPG AND
OTHER LIGHT HYDROCARBON
PRODUCTS -- SPECIFICATION
1 SCOPE 75 percent The combined gradmg ofaggre
gates shall be as specified In Table 2.
1.1 Thrs standard specifies requirements of
bitumen mastic flooring for industrres handling Table 2 Grading of Aggregates and Fillers
LPG and other light hydrocarbon products.
Sieve Designation PercentagebJ
1.2 This standard isalsoapplicable for explosive r------..A.------~ Mas.
and crackers manufacturing factories, ordinance Passing IS Retained on IS
Sieve Sieve
factones, ammonia depots, etc.
90 microns 45 to 55
1.3 Thrs standard IS not appucable for less 212 nne-ens 90 rrucrons 10to 30
volatile matenals such as kerosene, diesel and 600 microus 212 microns 10to 30
lubricating all. 236 mm 600 microns 5to20
236 NIl
2 REFERENCES
5 COMPOSITION
2.1 The Indian Standard, listed rn Annex A
are necessary adjuncts to this standard. 5.1 Bitumen mastic cornpositron IS made by
adding suitable materials like carbon black/
3 TERMINOLOGY graphite ofconductrng type.
3.1 For the purpose of tlus standard, termmo 5.1.1 The brtumen content shall be between
logies given III IS 334: 1982 and that given 13and 18 percent by mass of the total mastics.
below shall apply
5.1.2 Carbon black/graphite content shall be
3.2 Anti-Static finer than 90 micronIS sieve WIthcertamcontent
more than 60 percent by mass.
Having a resistance 10 the range of5 x 10' ohms
to 2 X 10"ohms 5.2 Preparation of Bitnmen Mastic
4 MATERIALS 5.2.1 The aggregates and fillers shall be heated
In a mastic cooker to a temperature of 120 to
4.1 Bitumen 150°(' and then the required quantity ofbitumen
heated to 170to 180QC added to It. These shall
Properties of bitumen conforming to IS 702 : be mixed and cooked for about 3 hours until
1988shall be as specified in Table I. the homogeneous mass is obtained taking care
that the temperature does not exceed 205°C at
Table 1 Pbysical Properties of Bitumen any time.
(Clause 4.1 )
6 PROPERTIES
SJ Characteristic Requir-e- Method of
No. ment Test 6.1 The hardness number of bitumen mastic as
(1) (2) (3) (4) lard and tested as per method described in
I) Softenmg potnt (ring 65 tolOOT IS 1205: 1978 Annex B shall be 4 to 12at 35°C.
and ballmethod )
il) Penerranonat 27°C in 10t040 IS 1203: 1978 6.2 The resistance of products after being
1/100em manufactured accordmg to 5.2 and when tested
ill) Loss on heatrng, %Max 0'3 IS 1212: 1978 10 accordance wrth 7 shall have electrical resis
rv) SolubIlity inCS" %Mm 99 IS 1216: 1978 tance between 5 x 14' ohmsand 2 x 10"ohms.
V)Duculrty at 27°C. Min 2 IS 1208: 1978
7 TEST PROCEDURE FOR MEASURING
4.2 Aggregates and Fillers ELECTRICAL RESISTANCE
Aggregates and fillers used in preparing bitumen 7.1 Preparation of Sample
mastic should be lime stone and other carbon
black/graphite materials. The lime stone should In preparing sample for test, mastic as laid shall
have calcium carbonate content of maximum be filled directly from the mixer at the time of
1
IS l3O~ : 1991
laying, into moulds which are not less than 7.2,1 Afterall traces of the powder have been
100 mm in diameter or \00 mm square and float cleaned away, the surfaces shall be WIped over
finished. wrth a pad moistened with distilled water and
rubbed dry with a clean cloth.
The sample, which shall be taken in duplicate,
7.3 Test Procedure
shall be moulded to a thickness of 25 mm.
Where it IS necessary to performtest on samples Immediately afterthe preparation ofthe surface,
taken out from the floor, special precautions
liquid electrodes and metal contactsas descrtbed
should be taken to ensure that the base is level
in Annex C shall be applied as given 1D
and the sample IS of umform thickness. The Annex D. It shall then be kept at a tempera
sample should not be remelted. ture of27 ± 2°C at a relative humidity of less
than 70 percent, and the resistance test as
7.2 Preparation oftbe Surrace specified 10 Anrex 0 shall be carried out after
a period of not less than 15 minutes or more
The surface to be used in test shall be cleaned than two hours. A' some materials are sensitive
by rubbing with dry Fuller's earth using ~ clear to moisture, great care shall be taken to aVOId
pad ofcotton wool, care bemg taken to aVOId breathmg on the samples prior to and dunng
straimng the material. the resistance test.
ANNEXA
( Clause 2.1 )
LIST OF REFERRED INDIAN STANDARDS
IS No. Tille IS No. ntle
334 : 1982 Glossary of term' relating to 1208: 1978 Methods of testing tar and
bitumen and tar ( second biturnmous materrals: Deter
revisron ) mmauon of ductihty (first
revision)
702: 1988 Industnal buumen ( second
revision) 1212: 1978 Methods of testmg tar and
1203 : 1978 Method, of testing tar and bnurrunous materials: Deter
bitummous matcrrals : Deter- mmanon of loss on heating
mmauon of penetration (firsl ( filst revision.)
revision) 1216 1978 Methods of testmg tar and
1205 : 1978 Method, of tesung tar and bitummous matenals: Deter
bitummous materials: Deter- mmatron of solubihtv 10 carbon
mination of softening pomt drsulphide or trlchl~roethylene
( first revision) ( fil st revision )
ANNEX B
( Clause 6.1 )
METHOD FOR DETERMINIMG HARDNESS NUMBER
8-1 DEFINITION OF HARDNESS NUMBER One convenient form ofapparatus is shown ID
FIg. I.
B-l.l The hardness number IS the figure denot
IDg the depth, ID hundredths of a centimetre, B-3 METHOD
to which a flat-ended mdentatron pin III the
form ofa steel rod 6'35 mm III diameter Will B-3.1 In order to ensure that the test results are
penetrate the masnc under a load of 317 N, reproducible. particular attention is called to the
apphed for I minute, the temperature being POlDtS given In B-3.1.1 to B.3.1.S.
maintained at 35° ± o5°C. ThIS load IS equr
valent to 10 N/mm' and is convemently B-3.I.l Samples
applied by means of a lever glvmg a suitable
In preparing samples for test, the mastic as laid
mechanical advantage.
shall be filled directly from the miller at the
B-2 APPARATUS trme oflaying, Into moulds which are not less
than 100 mm in diameter or 100 mm square and
Bo2.1 Theapparatusemployedshould becapable float finished. The samples, which shall he taken
offulfilling the above requirements accurately, in duplicate, shall be moulded to a thickness
2
IS 13026:1991
J
M H
o
A
B
l
R
p
c
A- Yoke, stalk and tray J- Indicatingneedle
B - Weight (central hole) K - Beam support yoke
C - Weight (slotted) L - Support bracket
D - Indentorpm spindle M - Calibrated dial
E- Lock lever N - Water bath
F - Spindlehead P- Control for water stirrer
G- Adjusting nut R- Control for heater blade and thermostat
R-Beam S - Bathilluminator
FIG. I A TYPE OF ApPARATUS FOR HARDNESS TESTING
of 25 mm. Where It IS necessary to make the surface. The pressure should not be greater
a test on samples cut from the floor, special than necessary to prevent lateral movement of
precautions should be taken to ensure that the the specimen.
sample IS ofuniform thickness and that the base
is level. The samples should not be remelted. B-3.1.4 Testing
8-3.1.2 Test Temperature The requisite load shall then be applied for
exactly 1minute and the depth of mdentation
For the purpose of this standard, the sample recorded in hundredths ofacenumetre,
shall be cooled for not less than three hours In
au or not less than one hour III cold runnrng 8-3.1.5 Test Results
water. It shall then be Immersed In water at a
temperature of35 ± O'5°C for at least one hour Test points shall be not less than 25mm apart
immediately prror to testing and shall be main and not less than 25 mm from the edge. At
tamed at that temperature during the test. least five readmgs shall be taken and the results
averaged. Ifany result differs from the mean
B-3.1.3 Adjustment ofPin by more than two hardness determined, except
that If there are fewer than four results to be
Before the load IS applied. the indentation pm averaged the sample shall be discarded and the
shallbe adjusted lightlybutfirmly in contact WIth test shall be made on another samples.
3
IS 13926 : 1991
ANNEX C
( Clause 7.3 )
LIQUID ELECTRODES AND CONTACTS AND TESTING INSTRUMENTS
Col LIQUID ELECTRODES C-I.I.4 The surface of the product shall not be
deformed either during the apphcation of the
C-I.I Liquid electrodes shall ba formed on the
contacts or durmg the test.
surface by means ofa conducting hqurd,
C-2 TESTING INSTRUMENTS
C-I.I.I This shall consist of:
C-2.1 The test shall be earned out With an
Anhydrous polyethylene glycol 800 parts
msulatron tester having a nominal open circurt
ofmol wt 600
voltage of 500V d.c. or, with any suitable
Water 200 parts
Instrument known to give comparable results.
Soft soap I part For values of resistance above 10"ohms, an
Potassium chlonde] 10parts
Instrument WItha nornmal open circuit voltage
C·l.I.2 The electrode area shall be completely of 1000 Vd.c, may be used.
welted and remain so until the end ofthe test.
The instrument shall be sufficiently accurate to
C·I.I.3 Clean metal contacts shall be applied dctermme the resistance within 5percent and
to the wetted areas so that the contact area IS shall not dissipate more than 3 W In the speer
approximately of the same size as but not men. The voltage shall be applied for no longer
greater than the wetted area. The arrangement than IS necessary to carry out the test in order
ofthe electrodes is shown in Fig 2. to reduce the risk of overheating the test piece.
t" 100----j
5°1 I
r
I
I
I
100
I
1__ L-..__-,,<---+-'
2A Testingof Circular Sample
28 Testing of SquareSample
All dimensions inmrlhmetres.
FIG. 2 TESTING OF ELECTRICAL RESISTANCE ON THE SURFACE
4