Source: https://www.scribd.com/document/25888976/IS-4031-Part3
Timestamp: 2016-10-24 16:39:34
Document Index: 493229823

Matched Legal Cases: ['art3', 'art 3', 'ART 3', 'art 3', 'art 3', 'art 3', 'art 4', 'art 4', 'art 4', 'art3', 'art3', 'art4', 'art2', 'art6', 'art9', 'art8', 'art11', 'art52720', 'art 1', 'art28', 'art-3', 'art1', 'art3']

IS 4031_Part3
BrowseBrowseInterestsBiography & MemoirBusiness & LeadershipFiction & LiteraturePolitics & EconomyHealth & WellnessSociety & CultureHappiness & Self-HelpMystery, Thriller & CrimeHistoryYoung AdultBrowse byBooksAudiobooksComicsSheet MusicBrowse allUploadSign inJoinBooksAudiobooksComicsSheet MusicIS : 4031 (Part 3) - 1988(Reaffirmed 2000) Edition 2.1 (1993-03)
PART 3 DETERMINATION OF SOUNDNESS
UDC 666.94 : 620.17
IS : 4031 (Part 3) - 1988
0. FOREWORD different equipment used for testing of cement, a brief description of which was also covered in the standard, had been published. In this revision, therefore, reference is given to different instrument specifications deleting the description of the instruments, as it has been recognized that reproducible and repeatable test results can be obtained only with standard testing equipment capable of giving desired level of accuracy. This part covers determination of soundness by Le-Chatelier method and autoclave test. 0.4 This edition 2.1 incorporates Amendment No. 1 (March 1993). Side bar indicates modification of the text as the result of incorporation of the amendment. 0.5 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*. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.
*Rules for rounding off numerical values ( revised ).
0.1 This Indian Standard (Part 3) (First Revision) was adopted by the Bureau of Indian Standards on 24 February 1988, after the draft finalized by the Cement and Concrete Sectional Committee had been approved by the Civil Engineering Division Council. 0.2 Standard methods of testing cement are essential adjunct to the cement specifications. This standard in different parts lays down the procedure for the tests to evaluate physical properties of different types of hydraulic cements. The procedure for conducting chemical tests of hydraulic cement is covered in IS : 4032-1985*. 0.3 Originally all the tests to evaluate the physical properties of hydraulic cements were covered in one standard but for facilitating the use of this standard and future revisions it has been decided to print the different tests as different parts of the standard and, accordingly this revised standard has been brought out in thirteen parts. This will also facilitate updating of individual tests. Further, since publication of the original standard in 1968, a number of standards covering the requirements of
*Method of chemical analysis of hydraulic cement ( first revision ).
1. SCOPE 1.1 This standard (Part 3) covers the procedures for determining the soundness of cement. 2. SAMPLING AND SELECTION OF TEST SPECIMEN 2.1 The samples of the cement shall be taken in accordance with the requirements of IS : 3535-1986* and the relevant standard specification for the type of cement being tested. The representative sample of the cement selected as above shall be thoroughly mixed before testing. 3. TEMPERATURE AND HUMIDITY 3.1 The temperature of the moulding room, dry materials and water shall be maintained at 27
*Methods revision ). of sampling hydraulic cements ( first
± 2°C. The relative humidity of the laboratory shall be 65 ± 5 percent. 3.2 The moist closet or moist room shall be maintained at 27 ± 2°C and at a relative humidity of not less than 90 percent. 4. GENERAL 4.1 Soundness of cement may be determined by two methods, namely Le-Chatelier method and autoclave method as described in 5 and 6. 5. LE-CHATELIER METHOD 5.1 Apparatus 5.1.1 The apparatus for conducting the LeChatelier test shall conform to IS : 5514-1969*.
5.1.2 Balance — The balance shall conform to the following requirements: On balance in use, the permissible variation at a load of 1 000 g shall be plus or minus 1.0 g. The permissible variation on new balance shall be one-half of this value. The sensibility reciprocal shall be not greater than twice the permissible variation.
NOTE 1 — The sensibility ‘reciprocal is generally defined as the change in load required to change the position of rest of the indicating element or elements of a non-automatic indicating scale a definite amount at any load. NOTE 2 — Self-indicating balance accuracy may also be used. with equivalent
mould gently together while this operation is being performed. Cover the mould with another piece of lightly oiled glass sheet, place a small weight on this covering glass sheet and immediately submerge the whole assembly in water at a temperature of 27 ± 2°C and keep there for 24 hours. 5.2.2 Measure the distance separating the indicator points to the nearest 0.5 mm. Submerge the mould again in water at the temperature prescribed above. Bring the water to boiling, with the mould kept submerged, in 25 to 30 minutes, and keep it boiling for three hours. Remove the mould from the water, allow it to cool and measure the distance between the indicator points. The difference between these two measurements indicates the expansion of the cement. 5.3 Calculation — Calculate the mean of two values to the nearest 0.5 mm to represent the expansion of cement. 5.4 Retest — In the event of cement failing to meet the test for soundness, a retest may be made after aeration. For this purpose, spread out the cement in a layer of 75 mm thickness and store it for 7 days in an atmosphere maintained at 27 ± 2°C and relative humidity of 50 to 80 percent. Retest this cement as described in 5.2. 6. AUTOCLAVE METHOD 6.1 Apparatus 6.1.1 Balance — Same as 5.1.2. 6.1.2 Weights — Same as 5.1.3. 6.1.3 Graduated Glass Cylinders — Graduated glass cylinders of 150 ml capacity shall be used. The permissible variation on these cylinders shall be plus or minus one millilitre. The main graduation lines of the cylinders shall be in circles and shall be numbered. The least graduations shall extend at least one-seventh of the way around, and intermediate graduations shall extend at least one-fifth of the way around the cylinder. The graduation lines may be omitted for the lowest 5 ml. 6.1.4 Moulds — Moulds of 25 × 25 mm size and 282 mm internal length and other accessories conforming to IS : 10086-1982*. 6.1.5 Autoclave — The autoclave shall consist of a high pressure steam boiler equipped with suitable safety device. The capacity of heating unit shall be such that with maximum load (water plus specimens) the pressure of the saturated steam in the autoclave may be raised
5.1.3 Weights — The permissible variations on weights in use in weighing the cement shall be as prescribed in Table 1.
TABLE 1 PERMISSIBLE VARIATIONS ON WEIGHTS PERMISSIBLE VARIATION ON WEIGHTS IN USE, P LUS OR MINUS g (2) 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.04 0.03 0.02 0.01
g (1) 500 300 250 200 100 50 20 10 5 2 1
5.1.4 Water Bath — Water bath with means of heating, capable of containing immersed Le-Chatelier moulds with specimens and of raising their temperature from 27 ± 2°C to boiling in 27 ± 3 minutes. 5.2 Procedure 5.2.1 Place the lightly oiled mould on a lightly oiled glass sheet and fill it with cement paste formed by gauging cement with 0.78 times the water required to give a paste of standard consistency [ see IS : 4031 (Part 4)-1988* ]. The paste shall be gauged in the manner and under the conditions prescribed in IS : 4031 (Part 4)1988*, taking care to keep the edges of the
*Methods of physical tests for hydrualic cement: Part 4 Determination of consistency of standard cement paste ( first revision ).
to a gauge pressure of 2.1 MPa or to an absolute pressure of about 2.2 MPa, in 1 to 1¼ hour from the time the heat is turned on. The automatic pressure control shall be capable of maintaining the pressure at 2.1 ± 0.1 MPa corresponding to a temperature of 215.7 ± 1.7°C. The autoclave shall be designed to permit the pressure to drop from 2.1 MPa to less than 0.07 MPa in one hour after the heat supply has been shut off. It shall be equipped with a vent valve for allowing the escape of air during the early part of the heating period and for releasing any steam pressure remaining at the end of the one-hour cooling period. The pressure gauge shall have a nominal dial diameter of 115 mm and shall be graduated from 0 to 4.1 MPa with scale division of not more than 0.04 MPa. The error in the gauge shall not exceed plus or minus 0.02 MPa at the operating pressure of 2.1 MPa. 6.1.6 Length Comparator — Changes in length of the test specimen shall be measured by an apparatus conforming to IS : 9459-1980*. 6.2 Preparation of Test Specimens 6.2.1 Preparation of Moulds — The moulds shall be thinly covered with mineral oil. After this operation, the stainless steel or non-corroding metal reference inserts with knurl heads shall be set to obtain an effective gauge length of 250 mm, care being taken to keep them clean and free from oil. 6.2.2 Mixing Cement Paste — The standard batch of cement paste shall consist of 500 g of cement, mixed with sufficient water to give a paste of standard consistency. Specimens — Immediately 6.2.3 Moulding following the completion of mixing, the test specimens shall be moulded in one or two layers, each layer being compacted with the thumb or forefinger by pressing the paste into the corners, around the reference inserts, and along the surfaces of the moulds until a homogeneous specimen is obtained. After the top layer has been compacted, the paste shall be cut off flush with the top of the mould and the surface smoothed with a few strokes of the trowel. During the operations of mixing and moulding, the hand shall be protected by rubber gloves. 6.2.4 Storage of Test Specimen — After the mould has been filled, it shall be immediately placed in a moist closet or a moist room. Specimens shall remain in the moulds in the moist room for at least 24 h. If removed from the moulds before 24 h, they shall be kept in the moist closet or moist room until tested.
*Specification for apparatus for use in measurement of length change of hardened cement paste, mortar and concrete.
6.3 Procedure 6.3.1 At 24 ± ½ h after moulding, the specimens shall be removed from the moist atmosphere, measured for length, and placed in the autoclave at room temperature in a rack so that the four sides of each specimen shall be exposed to saturated steam. The autoclave shall contain enough water to maintain an atmosphere of saturated steam vapour during the entire period of test. Ordinarily, 7 to 10 percent of the volume of the autoclave shall be occupied by water. 6.3.2 To permit air to escape from the autoclave during the early portion of the heating period, the vent valve shall be left open until steam begins to escape ( see 6.4 ). The valve shall then be closed and the temperature of the autoclave shall be raised at such a rate as will bring the gauge pressure of the steam to 2.1 MPa in 1 to 1¼ h from the time the heat is turned on. The 2.1 ± 0.1 MPa pressure shall be maintained for 3 h. At the end of 3 hours period, the heat supply shall be shut off and the autoclave cooled at a rate such that the pressure will be less than 0.1 MPa at the end of the hour, and any pressure remaining shall be slow released by partially opening the vent valve until atmospheric pressure is attained. The autoclave shall then be opened and the test specimens immediately placed in water, the temperature of which is above 90°C. The water surrounding the bars shall then be cooled at a uniform rate by adding cold water so that the temperature of the water shall be lowered to 27 ± 2°C in 15 min. The water surrounding the specimens shall then be maintained at 27 ± 2°C in 15 min when the specimens shall be surface-dried and their lengths measured again. 6.4 Safety Precautions 6.4.1 The pressure gauge should have a maximum capacity of 4.2 MPa. This is important because with too small a capacity there is but a little length of arc in which the gauge hand may indicate pressure above the specified maximum working pressure. The operator must be sure that the gauge hand has not passed the maximum graduation on the scale. 6.4.2 It is well to leave the pressure gauge tested, but in any event thermometer shall always be used together with the pressure gauge, so as to provide a means of detecting any failure of the pressure gauge to operate properly and also to indicate any unusual conditions such as that resulting from loss of water from the autoclave during the test. 6.4.3 The automatic control shall be maintained in proper working order at all times. 3
6.4.4 The safety valve shall be set so as to relieve the pressure at about 6 to 10 percent above the maximum of 2.1 MPa specified, that is at about 2.3 MPa. The safety valve shall be tested at least twice a year, either with a gauge-testing device or by adjusting the automatic controls so as to allow the autoclave to reach a pressure of about 2.3 MPa at which pressure the safety valve shall either open or be adjusted to open. The safety valve discharge shall be directed away from the operator.
NOTE — Unexpected combinations of conditions may really occur. For example, in one case the automatic control had failed, the safety valve had stuck, and the gauge hand, which at first glance appeared to be at about zero, had really passed the maximum graduation and had come to stop on the wrong side of the pin. This condition of the gauge was finally detected and the pressure, then of an unknown magnitude, was released before failure could occur in the apparatus.
6.4.6 It shall be remembered that for many of the autoclave pressure gauges now in use, the return of the gauge hand to the initial rest or starting point does not necessarily indicate zero pressure within the autoclave; there may then still remain an appreciable pressure. 6.4.7 A few drops of kerosene placed in the vent valve about once a week will aid in keeping the needle clean and in good-working condition. 6.5 Calculations — The difference in lengths of the test specimen before and after autoclaving shall be calculated to the nearest 0.01 percent of the effective gauge length which is the length between the innermost points of the metal inserts used as reference points and shall be reported as the autoclave expansion of the cement. A contraction (negative expansion) shall be indicated by prefixing a minus sign to the percentage expansion reported. 6.6 Retests — In the event of cement failing to meet the test for soundness, a retest may be made after aeration. For this purpose, spread out the sample in a layer of 75 mm thickness and store it for 7 days in an atmosphere maintained at 27 ± 2°C and relative humidity of 50 to 80 percent. Retest this cement as described in 6.2 and 6.3.
Bureau of Indian Standards BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and 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 form without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing 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 reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should 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 by Technical Committee : CED 2 Amendments Issued Since Publication Amend No. Amd. No. 1 Date of Issue March 1993
Telegrams: Manaksanstha (Common to all offices) Telephone
323 76 17 323 38 41
IS 4031_Part3Uploaded by pvmaheshPressureValvePressure MeasurementCement1.0K viewsDownloadEmbedSee MoreCopyright: Attribution Non-Commercial (BY-NC)Download as PDF, TXT or read online from ScribdFlag for inappropriate content
Documents similar to IS 4031_Part3IS 4031_Part4IS 4031_Part2IS 4031_Part6IS 4031_Part9IS 4031_Part8IS 4031_Part11IS 4031_Part52720_33IS:12269IS 269IS 2720 Part 1IS:2386_4Is 2720 Part28 Soil Replacement MethodIs 2131 - 1981 Standard Penetration Test (1997)Is 383 Specification for Coarse and Fine Aggregates From Nat.180180049Fineness of Cement4031_3Is 4031 (Part-3) Method of Physical Tests for Hydraulic Ceme4031 3soundnees1 of Cement120-50 Ultrasonic Cement AnalyzerA Study of Cement-pipe BondPaste Back Filling PropertisSPE-390-GEN 764-1lab report of mearcot boiler.FLUKE Pressure-Temperature Chart1 - Fluid Info98 Hydration Kinetics Modeling of Cement PasteKhayatOct92012V2.pdfMIL-F-15618FBooks similar to IS 4031_Part3Atmospheric Water VaporMicroscopic GiantsThe Invisible ManThe Invisible ManHückel Molecular Orbital TheoryWater for the Thousand MillionsBooks about PressureO Level Physics QuizCollege Chemistry QuizFluid Mechanics QuizAdvanced Pressure PointsPressure Vessel Design ManualThe Stress Analysis of Pressure Vessels and Pressure Vessel ComponentsWhat Does a Black Hole Look Like?On Light and Other High Frequency PhenomenaTipping The BalancePressure Vessels Field ManualPressure Vessel and Stacks Field Repair ManualPressure VesselsGemstone ReflexologyThe Problem of Increasing Human Energy, with Special References to the Harnessing of the Sun’s EnergyHip Pressure CookingThe Blood Pressure CureThoracic Outlet Syndrome, A Simple Guide To The Condition, Diagnosis, Treatment And Related Conditions25 Superfoods that Naturally Lower Blood PressurePressure Cooker CookbookHigh Frequency Oscillators for Electro-Therapeutic and Other Purposes21st Century U.S. Military DocumentsHydraulics and Fluid MechanicsIntroduction To MeteorologyStatics of Granular MediaFluid Mechanics - Pressure Measurement Made Easy!DASH Diet Complete Cookbook & Diet Program BasicsPhysics for O.N.C. CoursesHigh Systolic Blood PressureSigns of High Blood PressureA Simple Guide to Hypertension and Heart DiseasesDocuments about PressureGlobal Trends 2030Reference handbook2008 Lincoln MKZ Owners ManualHigh School Chemistry Grade 10-12SNEAK PEEKDesign, Construction and Maintenance of a Biogas GeneratorDC Streetlight Policy and Design GuidelinesAdvance Electronics - RegularTechnical Review Borehole Drilling and Rehabilitation under Field ConditionsForecasting 101Intrapartum Care (Free Online Edition)Crosman 2011 Product CatalogBain Brief 8macrotrendsHyperloop AlphaHyperloop CrowdStormAn Elementary Study of Chemistry by Henderson, William EdwardsWater, sanitation, hygiene and habitat in prisonsNY B18 Division 1 Fdr- Company Operations Reports 107The Landscape of Energya320 Operating Manual Cockpit DoorWEATHERFORD INTERNATIONAL LTD 10-K (Annual Reports) 2009-02-24ITT CORP 10-K (Annual Reports) 2009-02-25Back PainAccident reportMacondo History Before the Blowoutch13-2webVegetarian Starter Kit (PCRM)2014 F1 Technical RegulationsDisease Management for Heart FailureFord Restructing Plan as submitted to CongressBooks about ValvePiping Materials GuideThe Safety Relief Valve HandbookApollo and America's Moon Landing ProgramSaturn V Flight ManualHandbook of Valves and ActuatorsValve Selection HandbookSimulation of Industrial Processes for Control EngineersPractical Cardiovascular Hemodynamics20th Century Nuclear Power Plant AccidentsThree Mile Island (TMI) Nuclear Power Plant AccidentApollo and America's Moon Landing ProgramSaturn VThe Mercedes R230 SLApollo and America's Moon Landing ProgramWireless Control FoundationThe Mercedes 170SMercedes-Benz, SLK R172Tribological Processes in the Valve Train Systems with Lightweight ValvesFluid TransportDocuments about ValveMechanical Drawing Self-Taught by Rose, JoshuaHolley Street Avenger CarburetorAs 2419.1-2005 Fire Hydrant Installations System Design Installation and CommissioningMilitary 14 Bolt Axle ManualLunar Module - LM10 Through LM14 Familiarzation ManualHyperloop CrowdStorm2015 MY Police Vehicle Evaluation Test Book Compressed 479059 7 2WEATHERFORD INTERNATIONAL LTD 10-K (Annual Reports) 2009-02-24ITT CORP 10-K (Annual Reports) 2009-02-25Macondo History Before the Blowout2011 Mustang GT Tech SpecsU.S. Gulf of Mexico Oil and Natural Gas Industry Economic Impact Analysis2014 Sig Sauer Firearms CatalogAgility CNG ENP-084 Rev B First Responder GuideAircraft Powerplants ~ Volume 1Aircraft Powerplants ~ Volume 2October 2016Curtiss D-12 Aero EngineThe Traveling Engineers' AssociationTo Improve The Locomotive Engine Service of American Railroads by AnonymousAyres S2R-T Turbo Thrush (2005)DUKW Its Operation and UsesPiper J-3 Cub September 2016Russell Brake Lines CatalogSurvival at Sea ~ 1950As 1210-2010 Pressure VesselsManitou Diesel Aerial Work Platforms (EN)The Working of SteelAnnealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert), 1867-1965September 2016Documents about Pressure MeasurementAgility CNG ENP-084 Rev B First Responder GuideAs 2337.1-2004 Gas Cylinder Test Stations General Requirements Inspection and Tests - Gas CylindersX-15 Flight ManualAs 2118.1-2006 Automatic Fire Sprinkler Systems General SystemsApollo 12 Mission Operation ReportAs 2845.3-2010 Water Supply - Backflow Prevention Devices Field Testing and Maintenance of Testable DevicesAs 5200.037.2-2008 Plumbing and Drainage Products Flow Controllers for Use With Heated or Cold Water SystemsThermodynamicsEngineering Bulletin No 1Intelligence Bulletin ~ Apr 1945STS-55 Press KitMemphis-Light-Gas-ParagliderAs NZS 2280-2004 Ductile Iron Pipes and FittingsJapanese Balloon BombsScientific American Supplement, No. 492, June 6, 1885 by VariousScientific American Supplement, No. 799, April 25, 1891 by VariousAtmospheric Structure Satellite S-6 Press KitApollo 14 - Science at Fra MauroSaturn IB-V Instrument Unit Instrumentation System Description (S-IU-2-02 Through 204 501 Through 503)Apollo 13 Lunar Exploration Experiments and Photography SummaryApollo Experience Report Lunar Module Environmental Control SubsystemResults of the Ninth Saturn I Launch Vehicle Test Flight SA-8As 1289.0-2000 Methods of Testing Soils for Engineering Purposes General Requirements and List of MethodsAs 2402.1.1-2005 Traction Batteries - Lead-Acid Vented Cells - RequirementsAs 2419.3-1996 Fire Hydrant Installations Fire Brigade Booster ConnectionsAs 3848.2-1999 Filling of Portable Gas Cylinders Filling of Portable Cylinders for Self-contained UnderwaterAs 4032.2-2005 Water Supply - Valves for the Control of Hot Water Supply Temperatures Tempering Valves and EnAs 5092-2009 CNG Refuelling StationsAs 5200.053-2008 Plumbing and Drainage Products Stainless Steel Pipes and Tubes for Pressure ApplicationsBooks about CementScience and Technology of Concrete AdmixturesAdvances in Cement TechnologyDeepwater Horizon Gulf of Mexico Oil SpillDesigning Green Cement PlantsWaste Materials Used in Concrete ManufacturingHandbook of Polymer-Modified Concrete and MortarsMicroscopy of Ceramics and CementsDocuments about CementClimate ChangeDesign, Construction and Maintenance of a Biogas GeneratorConcrete ConstructionMethods and Costs by Gillette, Halbert Powers, 1869-STRYKER CORP 10-K (Annual Reports) 2009-02-20 Informal Settlements and Finance in Dar es Salaam, Tanzania Macondo History Before the BlowoutA Look Ahead to EPA Regulations for 2013Technology Pioneers 2011HFD ReportChanging Climate for Carbon TaxesLetter to USDOT Inspector General on 520 bridgeHydraulic Fracturing Study Inglewood Field10102012Executive SummaryAs 1379-2007 Specification and Supply of ConcreteSustainable Building Design for Tropical Climatestmp6D5CFull ReportRenewable Energy After COP21Land off Shapers Way, Cattedown, City of PlymouthLifting Corporate VeilAs 1478.2-2005 Chemical Admixtures for Concrete Mortar and Grout Methods of Sampling and Testing Admixtures fppi_051984April 2011 IssueDL Glass Ionomers Final 0Curtiss R-6 RacerBoeing P-12 BiplaneCurtiss P-40 WarhawkFokker EIII MonoplaneHOUSE HEARING, 111TH CONGRESS - COAL COMBUSTION BYPRODUCTSBPaugust