1、Designation: C 1486 00Standard Practice forTesting Chemical-Resistant Broadcast and Slurry-BroadcastResin Monolithic Floor Surfacings1This standard is issued under the fixed designation C 1486; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、 revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers methods for preparing test speci-mens and testing procedures for broadcas
3、t or slurry-broadcastmonolithic floor surfacings in areas where chemical resistanceis required.1.2 These floor surfacings are applied by various applicationmethods including squeegees, rollers, trowels, notched trowels,and gage rakes onto suitably prepared concrete substrates. Thesurfacings bond to
4、the substrate upon curing to provide anominal thickness of 60 mils (1.5 mm) or greater.1.3 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 establish appro-priate safety and health practices
5、and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:C 413 Test Method for Absorption of Chemical-ResistantMortars, Grouts, and Monolithic Surfacings2C 811 Practice for Surface Preparation of Concrete forApplication of Chemical-Resistant R
6、esin Monolithic Sur-facings2C 904 Terminology Relating to Chemical-Resistant Non-metallic Materials2C 905 Test Methods for Apparent Density of Chemical-Resistant Mortars, Grouts, and Monolithic Surfacings andPolymer Concretes2C 1028 Test Method for Determining the Static Coefficientof Friction of Ce
7、ramic Tile and Other Like Surfaces by theHorizontal Dynamometer Pull-Meter Method3D 635 Test Method for Rate of Burning and/or Extent andTime of Burning of Self-Supporting Plastics in a Horizon-tal Position4D 790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electri
8、cal Insulating Materi-als4D 1308 Test Method for Effect of Household Chemicals onClear and Pigmented Organic Finishes5D 2047 Test Method for Static Coefficient of Friction ofPolish-Coated Floor Surfaces as Measured by the JamesMachine6D 4060 Test Method for Abrasion Resistance of OrganicCoatings by
9、the Taber Abraser7D 4541 Test Method for Pull-Off Strength of CoatingsUsing Portable Adhesion Testers52.2 ACI Standards:ACI 503R, Appendix A, Test Method A.1, Field Test forSurface Soundness and Adhesion83. Terminology3.1 DefinitionsFor definitions of terms relating to thisstandard, refer to Termino
10、logy C 904.4. Significance and Use4.1 Because the sample is prepared in a manner as it wouldbe applied in the field, the test specimens may be consideredrepresentative of the application of a specified surfacing. Suchmethods include application by squeegees, rollers, trowels,notched trowels, and gag
11、e rakes.4.2 These systems vary in several ways, including thenumber of layers or application steps, the surface finish, andvariation in composition.4.3 The results obtained in carrying out this practice shouldserve as a guide in comparing similarly applied surfacings. Noattempt has been made to inco
12、rporate into this practice all ofthe various factors that may affect the performance of suchapplications when subjected to actual service.5. Types of Resins, Fillers, and Setting Agents(Hardeners)5.1 The liquid resins may be epoxy, polyester, vinyl ester, orothers capable of forming chemical-resista
13、nt surfacing materialwhen mixed with a suitable setting agent and filler.5.2 The fillers may be silica, carbon, or other chemical-resistant materials. The filler may also be combined as a premixwith the liquid resin or the setting agent.1This practice is under the jurisdiction of ASTM Committee C03
14、on Chemical-Resistant Nonmetallic Materials and is the direct responsibility of SubcommitteeC03.02 on Mortar and Monolithics.Current edition approved Nov. 10, 2000. Published January 2001.2Annual Book of ASTM Standards, Vol 04.05.3Annual Book of ASTM Standards, Vol 15.02.4Annual Book of ASTM Standar
15、ds, Vol 08.01.5Annual Book of ASTM Standards, Vol 06.02.6Annual Book of ASTM Standards, Vol 15.04.7Annual Book of ASTM Standards, Vol 06.01.8Available from ACI International, PO Box 9094, Farmington Hills, MI 48333.1Copyright ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United Stat
16、es.5.3 The setting agent (hardener) is usually supplied sepa-rately and added to the resin prior to use in accordance with themanufacturers recommendations.6. Sample Preparation6.1 A 36 in. by 36 in. (900 mm by 900 mm) piece of suitablematerial that will allow the release of the applied surfacingaft
17、er it has hardened shall be positioned on a rigid horizontalsurface.NOTE 1A 5 mil polyethylene terephthalate sheet has been foundsuitable.6.2 The floor surfacing shall be applied in accordance withthe manufacturers recommendations to a nominal thickness asit would be specified in an actual installat
18、ion.6.2.1 The standard temperature of the system constituents,the horizontal surface, and the temperature in the vicinity of themixing and application area shall be 73.4 6 4F (23 6 2.2C)unless otherwise specified by the manufacturer. The actualtemperature(s) shall be recorded.6.3 After the system ha
19、s been applied, age the preparedsample for a period of 7 days at 73.4 6 4F.6.4 Using a wet cutting saw, trim 6 in. (150 mm) off eachside of the 36 in. by 36 in. cured sample to yield a 24 in. by 24in. (610 mm by 610 mm) representative sample, free of anyedge effects.7. Thickness Test7.1 Starting at
20、any corner of the 24 in. by 24 in. represen-tative surfacing sample, and approximately 1 in. (25 mm) infrom the edge, use a micrometer and measure the thickness ofthe sample at approximately 6 in. (150 mm) intervals along theperimeter of the sample. Record the individual thicknessreadings and the av
21、erage of the individual readings. Theaverage value shall be reported as the cured thickness of thesurfacing.8. Abrasion Test8.1 Test specimens as required by Test Method D 4060 shallbe cut from the 24 in. by 24 in. representative surfacing sampleusing a wet cutting saw.8.2 The abrasion resistance of
22、 the surfacing shall be deter-mined in accordance with Test Method D 4060. A CS17 wheelwith a 1000 g weight shall be operated for 5000 cycles and theaverage milligram of weight loss per 1000 cycles shall bereported. For more abrasion resistant floors a H-22 wheel maybe used.9. Flexural Strength and
23、Modulus of Elasticity9.1 Test specimens as required by Test Methods D 790 shallbe cut from the representative surfacing sample using a wetcutting saw.9.2 The flexural strength and the modulus of elasticity shallbe determined in accordance with Test Methods D 790.NOTE 2Flexural strengths on systems l
24、ess than18 in. (3 mm) thickmay give erratic and questionable results.9.2.1 Test pieces shall be placed in the testing apparatussuch that the center loading nose will be applied to the top faceof the test specimen.10. Chemical Resistance10.1 Dependent upon the chemical resistance that is re-quired of
25、 the system, either immersion testing or “spot” testingshall be used.10.1.1 For chemical-resistant immersion testing, the testspecimens shall be the same as those required by Test MethodsD 790 and shall be cut from the representative surfacingsample using a wet cutting saw.10.1.2 The test conditions
26、 (test media, temperature, etc.)shall simulate the anticipated service conditions as closely aspossible.10.1.3 The number of test specimens required is dependentupon the number of test media to be employed, the number ofdifferent temperatures at which testing is performed, and thefrequency of test i
27、ntervals. The test specimens shall consist ofsets of three for one medium at a single temperature and foreach test interval. In addition, other sets of at least three,equivalent to the number of test temperatures, shall be avail-able for the total test period. Calculate the total number ofspecimens
28、required as follows:N 5 nM 3 T 3 I! 1 nT 1 n (1)where:N = number of specimens,n = number of specimens for a single test,M = number of media,T = number of test temperatures, andI = number of test intervals.10.1.4 Using a micrometer, measure the length, width, andthickness of each test specimen to the
29、 nearest 0.001 in. (0.0254mm). Using a volume displacement in water method, deter-mine the volume of the specimen to the nearest 0.01 cc.10.1.5 Specimens shall be dried in an oven to constantweight. Each specimen shall be weighed to the nearest 0.001 gon an analytical balance and the weight recorded
30、.10.1.6 Using a Shore Hardness Tester, measure and recordthe hardness of each specimen.10.1.7 Prior to immersion, record a brief description of thecolor and surface appearance of the specimens and the colorand clarity of the test medium.10.1.8 Place the test specimens in a suitable container orconta
31、iners, taking care to prevent the specimens from comingin contact with each other. The total number of specimens percontainer is not limited except by the ability of the container tohold the specimens, plus the required amount of test mediumper specimen. Add sufficient quantity of the test medium to
32、completely immerse each specimen, and place the closedcontainer in a constant-temperature oven adjusted to therequired temperature or in a suitably adjusted liquid bath.Examine the specimens after 1, 7, 14, 28, 56, and 84 days ofimmersion to determine the rate of attack. Other test periodsmay be emp
33、loyed if desired.10.1.9 Clean the specimens by three quick rinses in runningcold tap water and quick dry by blotting with a paper towelbetween each rinse. For each test specimen, after final blotting,allow the specimen to dry for12 h before weighing. Weigh allspecimens to the nearest 0.001 g.10.1.9.
34、1 Using a micrometer, measure the length, width andC 14862thickness of all specimens to the nearest 0.001 in. Using avolume displacement in water method, measure the volume ofthe specimen to the nearest 0.01 cc.10.1.9.2 Using a Shore Hardness Tester, measure the hard-ness of all specimens.10.1.10 No
35、te any indication of surface attack on the speci-men, any discoloration of the test medium, and the formationof any sediment.10.1.11 Discard and replace the test medium with freshmaterial after each inspection period. Replace media that areknown to be unstable, for example aqueous sodium hypochlo-ri
36、te, as often as necessary in order to maintain the originalchemical composition and concentration.10.1.12 Weight Change of Tested Specimens:10.1.12.1 Weight ChangeCalculate to the nearest 0.01 %the percentage loss or gain in weight of the specimens duringimmersion for each examination period, taking
37、 the initialconstant dried weight as 100 % as follows:Weight Change, % 5 W WD! / WD# 3 100 (2)where:WD= initial dried weight of specimen, g, andW = weight of specimen after immersion, g.10.1.12.2 Construct a graph employing the average percent-age of weight change of all the specimens at a given exa
38、mi-nation period after immersion in a particular test medium at agiven temperature, plotting the percentage of weight change asthe ordinate and the test period, in days, as the abscissa.10.1.13 Volume Change of Tested Specimens:10.1.13.1 Volume ChangeCalculate to the nearest 0.01 %the percentage inc
39、rease or decrease in volume of the specimensduring immersion for each examination period, taking theinitial volume as 100 % as follows:Volume Change, % 5 V VI! / VI# 3 100 (3)where:VI= initial volume of specimen, cc, andV = volume of specimen after immersion, cc.10.1.13.2 Construct a graph employing
40、 the average percent-age of volume change of all the specimens at a givenexamination period after immersion in a particular test mediumat a given temperature, plotting the percentage of volumechange as the ordinate and the test period, in days, as theabscissa.10.1.14 Hardness Change of Tested Specim
41、ens:10.1.14.1 Hardness ChangeCalculate to the nearest0.01 % the percentage increase or decrease in hardness of thespecimens during immersion for each examination period,taking the initial hardness as 100 % as follows:Hardness Change, % 5 H HI! / HI# 3 100 (4)where:HI= initial hardness of the specime
42、n, andH = hardness of specimen after immersion.10.1.14.2 Construct a graph employing the average percent-age of hardness change of all the specimens at a givenexamination period after immersion in a particular test mediumat a given temperature, plotting the percentage change inhardness change as the
43、 ordinate and the test period, in days, asthe abscissa.10.1.15 Change in Flexural Strength and Modulus of Elas-ticity:10.1.15.1 Determine the flexural strength of the testedspecimens in accordance with Test Methods D 790 for allspecimens at a given examination period after immersion in aparticular t
44、est medium at a given temperature.10.1.15.2 Flexural Strength ChangeCalculate to the near-est 0.01 % the percentage increase or decrease in flexuralstrength of the specimens during immersion for each exami-nation period, taking the initial flexural strength as 100 % asfollows:Flexural Strength Chang
45、e, % 5 S SI! / SI# 3 100 (5)where:SI= initial flexural strength of specimens, psi (MPa), andS = flexural strength of specimen after immersion.10.1.15.3 Construct a graph employing the average percent-age change of the flexural strength of all specimens at a givenexamination period after immersion in
46、 a particular test mediumat a given temperature, plotting the percentage of flexuralstrength change as the ordinate and the test period, in days, asthe abscissa.10.1.16 For chemical-resistant “spot” testing, Test MethodD 1308 shall be used. This test method covers the determina-tion of the effect of
47、 household chemicals on clear and pig-mented organic finishes resulting in any objectionable gloss,blistering, softening, swelling, loss of adhesion, or specialphenomena. This is considered a less severe test, but it may besufficient for many situations.11. Water Absorption11.1 Water absorption shal
48、l be determined in accordancewith Test Method C 413 with the following exceptions beingnoted.11.1.1 The test specimens shall be 2 in. by 2 in. (50 mm by50 mm) pieces, cut from prepared representative surfacingsample using a wet cutting saw.11.1.2 The cut specimens shall be rinsed and blotted dry and
49、placed in a desiccator for a minimum of 16 h before beginningthe test.11.1.3 The glass beaker used to hold the specimens shall besized accordingly to accommodate the 2 in. by 2 in. testspecimens.12. Apparent Density12.1 Using 1 in. by 1 in. test specimens to be cut from theprepared representative surfacing sample using a wet cuttingsaw, the apparent density of the surfacing shall be determinedin accordance with Test Methods C 905, Density Method 2.13. Flammability13.1 Flammability of the surfacing shall be determined inaccordance with Test Method D 635.13.1.1
