1、Designation: C1486 00 (Reapproved 2012)Standard 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
2、, 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.1. Scope1.1 This practice covers methods for preparing test speci-mens and testing procedur
3、es for broadcast 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. Thesurf
4、acings bond to the 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 con
5、sidered standard.1.4 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 and health practices and determine the applica-bility of regulatory limitations prior to us
6、e.2. Referenced Documents2.1 ASTM Standards:2C413 Test Method for Absorption of Chemical-ResistantMortars, Grouts, Monolithic Surfacings, and PolymerConcretesC811 Practice for Surface Preparation of Concrete for Ap-plication of Chemical-Resistant Resin Monolithic Surfac-ings (Withdrawn 2012)3C904 Te
7、rminology Relating to Chemical-Resistant Nonme-tallic MaterialsC905 Test Methods for Apparent Density of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, andPolymer ConcretesC1028 Test Method for Determining the Static Coefficient ofFriction of Ceramic Tile and Other Like Surfaces by theHo
8、rizontal Dynamometer Pull-Meter MethodD635 Test Method for Rate of Burning and/or Extent andTime of Burning of Plastics in a Horizontal PositionD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD1308 Test Method for Effect of Househo
9、ld Chemicals onClear and Pigmented Organic FinishesD2047 Test Method for Static Coefficient of Friction ofPolish-Coated Flooring Surfaces as Measured by theJames MachineD4060 Test Method for Abrasion Resistance of OrganicCoatings by the Taber AbraserD4541 Test Method for Pull-Off Strength of Coating
10、s UsingPortable Adhesion Testers2.2 ACI Standards:ACI 503R, Appendix A, Test Method A.1, Field Test forSurface Soundness and Adhesion43. Terminology3.1 Definitions For definitions of terms relating to thisstandard, refer to Terminology C904.4. Significance and Use4.1 Because the sample is prepared i
11、n 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 gage rakes.4.2 These systems vary in several ways, including thenumber of
12、 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. No1This practice is under the jurisdiction of ASTM Committee C03 on Chemical-Resistant Nonmetallic Ma
13、terials and is the direct responsibility of SubcommitteeC03.02 on Monolithics, Grouts and Polymer Concretes.Current edition approved Aug. 1, 2012. Published September 2012. Originallyapproved in 2000. Last previous edition approved in 2008 as C1486 00 (2008).DOI: 10.1520/C1486-00R12.2For referenced
14、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.3The last approved version of this historical standard is referenced onwww.as
15、tm.org.4Available from American Concrete Institute (ACI), P.O. Box 9094, FarmingtonHills, MI 48333-9094, http:/www.concrete.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1attempt has been made to incorporate into this practice al
16、l 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-resistant surfacing materialwhen mix
17、ed 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.5.3 The setting agent (hardener) is usually supplied sepa-rately and added to the resin prio
18、r 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 positioned on a rigid horizontalsurface.NOTE 1A5 mil polyethylene te
19、rephthalate 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 temperature of the system constituents,the horizontal surface, and the tem
20、perature 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 preparedsample for a period of 7 days at 73.4 6 4F.6.4 Using a wet cuttin
21、g 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 24 in. represen-tative surfacing sample, and approximately 1 in. (25
22、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 readings. Theaverage value shall be reported as the cured thickness of th
23、esurfacing.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-mined in accordance with Test Method D4060. A CS17 wheelwith a 1000
24、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 Modulus of Elasticity9.1 Test specimens as required by Test Methods D790 shallbe cut from the repre
25、sentative 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 questionable results.9.2.1 Test pieces shall be place
26、d 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” testingshall be used.10.1.1 For chemical-resistant im
27、mersion 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 the anticipated service conditions as closely aspossibl
28、e.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 of three for one medium at a single temperature and
29、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 = number of specimens,n = number of specimens for a
30、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 displacement in water method, deter-mine the volume of the spe
31、cimen 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 recordthe hardness of each specimen.10.1.7 Prior to immer
32、sion, 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 comingC1486 00 (2012)2in contact with each other. The total
33、 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 the closedcontainer in a constant-temperature ov
34、en 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 three quick rinses in runningcold tap water a
35、nd 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, width andthickness of all specimens to the nearest
36、 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, any discoloration of the test medium, and thefo
37、rmation 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 theoriginal chemical composition and concentration.10.1.
38、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:Weight Change, % 5W 2 WD!/WD#3100 (2)where:WD= i
39、nitial 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 at agiven temperature, plotting the percenta
40、ge 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 for each examination period, taking theinit
41、ial 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 at a givenexamination period after immersion
42、 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 percentage increase or decrease in hardnes
43、s 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 a graph employing the average percent-age
44、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 Change in Flexural Strength and Modulus of Ela
45、s-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 ChangeCalculate to the near-est 0.01 % the perce
46、ntage 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 specimens, psi (MPa), andS = flexural strength
47、 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 percentage of flexuralstrength change as the ordina
48、te 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,softeni
49、ng, 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 Method C413 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.C1486 00 (2012)311.1.2 The cut specimens shall be rinsed and blotted dry andplaced in a desiccator for a minimum of 16 h before beginningthe t
