1、Designation: E 2179 03 (Reapproved 2009)Standard Test Method forLaboratory Measurement of the Effectiveness of FloorCoverings in Reducing Impact Sound TransmissionThrough Concrete Floors1This standard is issued under the fixed designation E 2179; the number immediately following the designation indi
2、cates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONThis test method is part of a set for eval
3、uating the sound-insulating properties of building elements.It is designed to measure the reduction in transmission of impact sound due to a floor covering in alaboratory. Others in the set include the measurement of sound isolation in buildings ( Test MethodE 336), the laboratory methods of measuri
4、ng airborne sound transmisssion loss of building partitionssuch as walls, floor-ceiling assemblies, doors, and other space-dividing elements ( Test Method E 90);the laboratory measurement of impact sound transmission through floors ( Test Method E 492), themeasurement of impact sound transmission in
5、 buildings ( Test Method E 1007), the measurement ofsound transmission through building facades and facade elements ( Guide E 966), and themeasurement of sound transmission through a common plenum between two rooms (Method E 1414).1. Scope1.1 This test method describes a method for the laboratorymea
6、surement of the effectiveness of floor coverings in reducingimpact noise from a standard tapping machine through con-crete floors. The test results are not necessarily directly relatedto the subjective evaluations of the floor coverings.1.2 This test method applies to all floor coverings, whethersin
7、gle or multi-layered, as installed on a standard concretefloor. Multi-layered coverings may be factory-assembled orassembled at the test laboratory.1.3 The test method applies only to laboratory measure-ments. It does not apply to the measurement of the effective-ness of a floor covering in a field
8、situation.1.4 Laboratory AccreditationA procedure for accreditinga laboratory for performing this test method is given in MethodE 492.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to esta
9、blish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 634 Terminology Relating to Building and Environmen-tal AcousticsE90 Test Method for Laboratory Measurement of AirborneSound Transmissio
10、n Loss of Building Partitions and Ele-mentsE 336 Test Method for Measurement of Airborne SoundAttenuation between Rooms in BuildingsE 492 Test Method for Laboratory Measurement of ImpactSound Transmission Through Floor-Ceiling AssembliesUsing the Tapping MachineE 966 Guide for Field Measurements of
11、Airborne SoundInsulation of Building Facades and Facade ElementsE 989 Classification for Determination of Impact InsulationClass (IIC)E 1007 Test Method for Field Measurement of TappingMachine Impact Sound Transmission Through Floor-Ceiling Assemblies and Associated Support StructuresE 1414 Test Met
12、hod for Airborne Sound Attenuation Be-tween Rooms Sharing a Common Ceiling Plenum2.2 ANSI Standards:1This test method is under the jurisdiction ofASTM Committee E33 on Buildingand Environmental Acoustics and is the direct responsibility of SubcommitteeE33.03 on Sound Transmission.Current edition app
13、roved April 1, 2009. Published August 2009. Originallyapproved in 2001. Last previous edition approved in 2003 as E 2179 032.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information,
14、refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.S1.6 Standard Preferred Frequencies, Frequency Levels,and Band Numbers for Acoustical MeasurementsS1.10 Pressure Calibrat
15、ion of Laboratory Standard PressureMicrophonesS1.11 Specification for Octave-band and Fractional-Octave-Band Analog and Digital Filters2.3 ISO Standards:ISO 717-2 Rating of Sound Insulation in Buildings and ofBuilding ElementsPart 2: Impact Sound InsulationISO 140-6 AcousticsMeasurement of Sound Ins
16、ulation inBuildings and of Building ElementsPart 6: LaboratoryMeasurements of Impact Sound Insulation of FloorsISO 140-8 Acoustics Measurement of Sound Insulation inBuildings and of Building ElementsPart 8: LaboratoryMeasurements of the Reduction of Transmitted ImpactNoise by Floor Coverings on a He
17、avyweight Floor3. Terminology3.1 Definitions of the acoustical terms used in this testmethod are given in Terminology C 634.3.2 Descriptions of Terms Specific to This Standard:3.2.1 floor coveringany resilient material, combination ofresilient materials or combination of resilient material and rigid
18、materials used to provide a finished walking surface on a floor.This includes all materials between the upper walking surfaceand the base concrete slab.3.2.2 reference concrete floora hypothetical concretefloor used to calculate changes in impact insulation class(DIIC).3.2.3 standard concrete floort
19、he actual concrete floorsatisfying the provisions of this method used in the measure-ments.4. Summary of Test Method4.1 Two vertically adjacent rooms are used: the upper onebeing designated the source room and the lower one thereceiving room. A standard concrete floor is installed in anopening betwe
20、en them. The rooms and the floor installation aredesigned so the only significant sound radiation into thereceiving room is from the standard concrete floor.4.2 Astandard tapping machine is installed and activated onthe standard concrete floor and the normalized impact soundpressure levels are measu
21、red in the room below. The floorcovering to be evaluated is then installed on the standardconcrete floor and the normalized impact sound pressure levelsmeasured again.4.3 The differences in normalized impact sound pressurelevel are subtracted from the levels defined for a referenceconcrete floor and
22、 an IIC rating is calculated for the resultantarray. This is the IIC that the covering would produce incombination with the reference concrete floor. The secondrating, DIIC, is obtained by subtracting 28 from the first (28 isthe IIC for the reference concrete floor). This gives theimprovement in IIC
23、 that the covering would produce on thereference concrete floor.5. Significance and Use5.1 The impact sound rating for a floor assembly is deter-mined both by the basic floor assembly and the floor coveringon the upper surface. The same floor covering in combinationwith different basic floor assembl
24、ies will not always give thesame impact insulation class (IIC) ratings. This test method isdesigned to provide data that characterize the floor coveringalone when installed over concrete slab floors.5.2 The DIIC rating calculated in 13.4 is used to comparethe effectiveness of different floor coverin
25、gs on concrete floors.5.3 The impact insulation class (IIC) calculated for thereference concrete floor with a covering provides an indicationof the impact sound insulation that the covering will providewith typical, monolithic concrete floors.5.4 When the normalized impact sound pressure levelsbelow
26、 a bare concrete slab are known, the difference spectrumcalculated in 13.1 may be used to estimate the impact soundpressure levels and hence the IIC that would result if thecovering were installed on the slab.5.5 Warning: Difference spectra measured using thismethod shall not be used to estimate imp
27、act sound pressurelevels for floors comprising only one or two lightweight floorlayers such as oriented strandboard or plywood. Such esti-mated impact sound pressure levels would be very inaccurate.NOTE 1The difference spectrum calculated in 13.1 gives unreliableestimates of the reduction in impact
28、sound pressure levels due to the floorcovering when it is placed on a joist floor incorporating a concrete topping(about 50 mm thick) poured directly on the plywood subfloor or steeldeck. The estimated impact sound pressure levels are too low.35.6 This test method closely follows that described inIS
29、O 140-8 except that the single number rating used is theimpact insulation class (IIC) described in Classification E 989.The description of the standard concrete floor also differs.NOTE 2The requirement in Classification E 989 that no deviationabove the reference contour may exceed 8 dB means that th
30、ere is nosimple relationship between ISO 140-8 test ratings and those generated bythis method.6. Test Rooms6.1 The test rooms shall satisfy the requirements given inMethod E 492.7. Standard Concrete Floor7.1 The standard concrete floor on which the test coveringsare to be installed shall consist of
31、a reinforced concrete slab orslab sections with a thickness of 150 6 50 mm. The slab orslabs shall be homogeneous and of uniform thickness.NOTE 3A thickness of 150 mm is preferred for new facilities.7.2 The surface of the test floor shall be smooth andsufficiently hard to endure the impacts of the t
32、apping machine.Any screed applied to the surface of the test floor shall adheresolidly at all points so the screed does not chip, crack orbecome pulverized.7.3 Inspect the surface of the slab frequently to assesssurface damage. Repairs shall be made when the surface is nolonger smooth.3“Impact Sound
33、 Measurements on Floors Covered with Small Patches ofResilient Materials or Floating Assemblies,” A.C.C. Warnock. Internal Report IRCIR-802. National Research Council Canada. January 2000.E 2179 03 (2009)2NOTE 4Altering the position of the tapping machine slightly for eachtest will reduce wear on th
34、e standard slab and prolong the life of thesurface.8. Test Specimens8.1 Classification of Test Specimens:8.1.1 Category I (Small Specimens)This category in-cludes flexible coverings (plastics, rubber, cork, matting, carpetor combinations thereof), which are installed loosely or byadhesion to the flo
35、or surface.8.1.1.1 Use three samples, preferably from different produc-tion runs but from the same source. Each sample shall measureat least 1 3 0.5 m.8.1.2 Category IIThis category includes rigid, homoge-neous surface materials or complex floor coverings of which atleast one constituent is rigid. W
36、hen the area of the standardconcrete floor is less than 10 m2, the specimen shall cover thewhole surface of the standard concrete floor. When the area ofthe standard concrete floor is greater than 10 m2, the specimenarea need not exceed 10 m2provided that the smallestdimension of the specimen is not
37、 less than 3 m.8.1.3 Materials of Uncertain ClassificationIn the case ofuncertainty as to the appropriate category for a material, thetesting laboratory shall decide whether small or large speci-mens will be tested. In any case the specimen shall bedescribed in detail in the test report.8.2 Preparat
38、ion and Installation of Test Specimens:8.2.1 Adhesive MountingInstall coverings to be mountedwith adhesive with great care, normally with adhesive coveringthe entire surface of the test specimen. If the adhesive isapplied in isolated patches, describe the exact procedure in thereport. Follow strictl
39、y the manufacturers instructions for useof the adhesive, especially with regard to the amount and thebonding-time. Report the type of adhesive and the bonding-time.8.2.2 To avoid damage to the standard concrete slab andease removal of specimens, it is acceptable to first apply aremovable thin layer
40、such as double-faced tape or thin paperusing soluble paste. Adhesives for coverings may then beapplied to the removable layer. Users shall establish byexperiment that such protective coverings have negligibleeffect on the measurements. The data collected during suchexperiments shall be kept on file
41、and made available onrequest.8.3 Room Temperature and HumidityMeasure and reportthe temperature and the humidity of the air in each room. Thetemperature shall be in the range 18 to 25C in the upper room.8.4 Aging of SpecimensTest specimens that incorporatematerials for which there is a curing proces
42、s (for exampleadhesives, plasters, concrete, mortar, damping compound)shall age for a sufficient interval before testing. Manufacturersmay supply information about curing times for their products.Aging periods for certain common materials are given in TestMethods E 492 and E90.9. Microphone Requirem
43、ents9.1 Microphones shall meet the requirements in MethodE 492.10. Tapping Machine Requirements10.1 The standard tapping machine used shall meet therequirements in Method E 492.11. Frequency Range and Bandwidth for Analsis11.1 BandwidthFor each test band, the overall frequencyresponse of the electri
44、cal system, including the filter or filtersin the source or microphone systems, shall satisfy the specifi-cations given in ANSI Specification S1.11 for a one-thirdoctave band filter set, Order 3 or higher, Type 1.11.2 Standard Test FrequenciesMeasurements shall bemade in all one-third-octave bands w
45、ith mid-band frequenciesspecified in ANSI S1.6 from 50 to 5000 Hz.12. Procedure12.1 Measurement of Normalized Impact Sound PressureLevelThe average normalized impact sound pressure level inthe receiving room shall be measured as detailed in MethodE 492, once with the tapping machine striking the bar
46、estandard concrete floor and once on the floor covering installedon the standard concrete floor. The paper described in 8.2.2shall not be present when measurements are made on the barefloor. The average normalized impact sound pressure levels aredenoted L0and Lcrespectively.12.1.1 Category I Specime
47、nsThe normalized impactsound pressure levels for the bare standard concrete floor shallbe obtained by operating the tapping machine in the middle ofeach area to be occupied by the three small specimens. Thethree sets of levels obtained shall be averaged and thenormalized result used as L0in the calc
48、ulations.12.1.1.1 The three samples shall be placed side by side onthe standard concrete floor. The supporting feet of the tappingmachine shall rest on the sample being tested. The tappingmachine shall be operated on top of each sample in turn in theposition it occupied on the bare floor and the res
49、ults averagedas specified below. The levels for the three samples shall beaveraged and the result used as Lcin the calculations.12.1.2 Category II SpecimensFor the bare standard con-crete floor and the floor with covering, the standard tappingmachine shall be operated in the four positions defined inMethod E 492 and the normalized impact sound pressure levelsmeasured for each position. If the temperature and relativehumidity in the receiving room do not differ by more than 1Cand 2% respectively during measurements with and without thespecimen, then measure
