1、Designation: C1486 18Standard Practice forTesting Chemical-Resistant Broadcast and Slurry-BroadcastResin Monolithic Floor Surfacings1This standard is issued under the fixed designation C1486; the number immediately following the designation indicates the year oforiginal adoption or, in the case of r
2、evision, 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.1. Scope1.1 This practice covers methods for preparing test speci-mens and testing procedures for broadcast o
3、r 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 the
4、 substrate upon curing to provide anominal thickness of 60 mils (1.5 mm) or greater.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1
5、.4 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, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.
6、1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to
7、 Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C413 Test Method for Absorption of Chemical-ResistantMortars, Grouts, Monolithic Surfacings, and PolymerConcretesC904 Terminology Relating to Chemical-Resistant Nonme-tallic MaterialsC905 Test Methods for Apparent Density of Chemical-
8、Resistant Mortars, Grouts, Monolithic Surfacings, andPolymer ConcretesD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD1308 Test Method for Effect of Household Chemicals onClear and Pigmented Organic FinishesD2047 Test Method for S
9、tatic Coefficient of Friction ofPolish-Coated Flooring Surfaces as Measured by theJames MachineD4060 Test Method for Abrasion Resistance of OrganicCoatings by the Taber AbraserD7234 Test Method for Pull-Off Adhesion Strength of Coat-ings on Concrete Using Portable Pull-Off Adhesion Tes-tersE648 Test
10、 Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy SourceF2508 Practice for Validation, Calibration, and Certificationof Walkway Tribometers Using Reference Surfaces2.2 NACE/SSPC Joint Standard:3NACE No. 6/SSPC-SP 13 Surface Preparation of Concrete3. Terminology3
11、.1 DefinitionsFor definitions of terms relating to thisstandard, refer to Terminology C904.4. 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. Suchmet
12、hods include application by squeegees, rollers, trowels,notched trowels, and gage rakes.4.2 These systems vary in several ways, including thenumber of layers or application steps, the surface finish, andvariation in composition.1This practice is under the jurisdiction of ASTM Committee D01 on Paint
13、andRelated Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.46 on Industrial Protective Coatings.Current edition approved Feb. 1, 2018. Published March 2018. Originallyapproved in 2000. Last previous edition approved in 2012 as C1486 00 (2012).DOI: 10.1520/C1
14、486-18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from NACE International (NACE), 15835 Park
15、Ten Pl., Houston, TX77084, http:/www.nace.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Deci
16、sion on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14.3 The results obtained in carrying out this practice shouldserve as a guide in comparing similarly applied surfacings. No
17、attempt has been made to incorporate 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, urethane, polyester,vinyl ester, or oth
18、ers capable of forming chemical-resistantsurfacing material when mixed with a suitable setting agentand 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.5.3 The setting agent (ha
19、rdener) is usually supplied sepa-rately and added to the resin prior to use in accordance with themanufacturers recommendations.6. Sample Preparation6.1 A36 in. by 36 in. (900 mm by 900 mm) piece of suitablematerial that will allow the release of the applied surfacingafter it has hardened shall be p
20、ositioned 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 installation.6.2.1 The standard temper
21、ature 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 has been applied, age the prepa
22、redsample 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 any corner of the 24 in. by 2
23、4 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 average of the individual readi
24、ngs. Theaverage value shall be reported as the cured thickness of thesurfacing.8. Abrasion Test8.1 Test specimens as required by Test Method D4060 shallbe cut from the 24 in. by 24 in. representative surfacing sampleusing a wet cutting saw.8.2 The abrasion resistance of the surfacing shall be deter-
25、mined in accordance with Test Method D4060. A CS17 wheelwith a 1000 g weight shall be operated for 1000 cycles and theaverage milligram of weight loss shall be reported. For moreabrasion resistant floors a H-22 wheel may be used.9. Flexural Strength and Modulus of Elasticity9.1 Test specimens as req
26、uired by Test Methods D790 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 D790.NOTE 2Flexural strengths on systems less than18 in. (3 mm) thickmay give erratic and
27、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 the system, either immersion testing or “spot”
28、testingshall be used.10.1.1 For chemical-resistant immersion testing, the testspecimens shall be the same as those required by Test MethodsD790 and shall be cut from the representative surfacing sampleusing a wet cutting saw.10.1.2 The test conditions (test media, temperature, etc.)shall simulate th
29、e 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 intervals. The test specimens shall consist ofsets
30、 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 required as follows:N 5 nM 3T 3I!1nT1n (1)where:N
31、 = 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 nearest 0.001 in. (0.0254mm). Using a volume displacem
32、ent 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.10.1.6 Using a Shore Hardness Tester, measure and reco
33、rdthe 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 orcontainers, taking care to prevent the specimens from coming
34、C1486 182in 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 tocompletely immerse each specimen, and place th
35、e 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 employed if desired.10.1.9 Clean the specimens by
36、 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.10.1.9.1 Using a micrometer, measure the length, widt
37、h andthickness 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 Note any indication of surface attack on thespecimen, a
38、ny discoloration of the test medium, and theformation of 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 sodiumhypochlorite, as often as necessary in order to maintain theorigina
39、l chemical 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 the initialconstant dried weight as 100 % as follows:Wei
40、ght Change, % 5W 2 WD!/WD#3100 (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 exami-nation period after immersion in a particular test medium
41、 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 increase or decrease in volume of the specimensduring immersion
42、 for each examination period, taking theinitial volume as 100 % as follows:Volume Change, % 5V 2 VI!/VI#3100 (3)where:VI= initial volume of specimen, cc, andV = volume of specimen after immersion, cc.10.1.13.2 Construct a graph employing the average percent-age of volume change of all the specimens
43、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 Specimens:10.1.14.1 Hardness ChangeCalculate to the nearest0.01 % the
44、 percentage increase or decrease in hardness of thespecimens during immersion for each examination period,taking the initial hardness as 100 % as follows:Hardness Change, % 5H 2 HI!/HI#3100 (4)where:HI= initial hardness of the specimen, andH = hardness of specimen after immersion.10.1.14.2 Construct
45、 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 ordinate and the test period, in days, asthe abscissa.10.1.15 Cha
46、nge in Flexural Strength and Modulus of Elas-ticity:10.1.15.1 Determine the flexural strength of the testedspecimens in accordance with Test Methods D790 for allspecimens at a given examination period after immersion in aparticular test medium at a given temperature.10.1.15.2 Flexural Strength Chang
47、eCalculate 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 Change, % 5S 2 SI!/SI#3100 (5)where:SI= initial flexural strength of spe
48、cimens, 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 a particular test mediumat a given temperature, plotting the percenta
49、ge of flexuralstrength change as the ordinate and the test period, in days, asthe abscissa.10.1.16 For chemical-resistant “spot” testing, Test MethodD1308 shall be used. This test method covers the determinationof the effect of household chemicals on clear and pigmentedorganic finishes resulting in any objectionable gloss, blistering,softening, swelling, loss of adhesion, or special phenomena.This is considered a less severe test, but it may be sufficient formany situations.11. Water Absorption11.1 Water absorption shall be determined in accordancewith Test M
