1、Designation: C1181 00 (Reapproved 2012)Standard Test Methods forCompressive Creep of Chemical-Resistant PolymerMachinery Grouts1This standard is issued under the fixed designation C1181; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisi
2、on, 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 These test methods cover a quantitative, comparativetest for compressive creep of chemical-resistant g
3、routingmaterials under a sustained load at a test temperature. Constantload is maintained using a bolt and spring washers. Measure-ments are made at laboratory temperature after exposureperiods at the selected test temperature.1.2 Test Method A outlines the molding techniques for anunbonded test spe
4、cimen. Test Method B covers the moldingtechniques for a bonded test specimen.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.1.4 This
5、 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 use.2. Referenced Documents
6、2.1 ASTM Standards:2C904 Terminology Relating to Chemical-Resistant Nonme-tallic Materials3. Terminology3.1 DefinitionsFor definitions of terms used in these testmethods, see Terminology C904.4. Significance and Use4.1 These test methods provide a means of measuring thetotal compressive deflection o
7、f chemical-resistant, machinery-grout materials under a sustained load at the test temperature.Test stress and temperature can be selected to simulate antici-pated use conditions. For the purposes of these tests, creep isconsidered to be the compressive deflection in inches per inch,which occurs aft
8、er the initial loading of the specimen atlaboratory temperature. The results do not necessarily corre-late for different specimen thicknesses. No correlation has beenestablished to actual-use conditions.5. Apparatus5.1 Steel Loading PlatesSteel plates, as described, areused for loading the grout dur
9、ing the test. They may, also, bepart of the mold used to cast the grout specimen.5.1.1 Two steel plates are required for each test specimen.The plates shall be 414 to 5 in. (11 to 13 cm) square by 1 in. (25mm) thick. A118-in. (30-mm) diameter hole shall be drilled inthe center of the plates. The edg
10、es of the plates and holes shallbe deburred.5.1.2 One of the steel plates shall have four14-in. (6-mm)measuring holes (one in each corner) with the center12 in. (13mm) in from each edge.5.2 Bolt AssemblyA1-in. (24-mm) diameter by 7.5 in. (19cm) long, high-strength steel bolt, and nut, flat washers,
11、andspring washers are used to maintain the test load.5.3 Belleville Spring WashersFour washers are requiredfor each test. These shall be high carbon steel with dimensionsof 118 by 214 in. (5.7 by 6.0 cm) outside diameter by 0.159-in.(4.0-mm) thickness, with 0.039-in. (1.0-mm) dish. Thesewashers will
12、 have an approximate spring rate of 153 000 lb/in.(27 300 kg/cm) and a rated load of 5793 lb (2630 kg) whenflattened.5.4 Grout Mold, suitable to cast the 4-in. (10-cm) diameterby 2 6 0.1 in. (5 cm) thick grout specimen with a 118-in.diameter center hole as shown in Fig. 1. The faces must beparallel
13、to within 0.030 in. (0.75 mm) over the 4-in. diameterspecimen contact area (see 5.3). The mold may utilize the steelloading plates.5.4.1 For the bonded method, the plates are used as moldend plates.5.5 Compression Machine or Apparatus , capable of apply-ing the test load to within 62.0 %.1These test
14、 methods are under the jurisdiction of ASTM Committee C03 onChemical-Resistant Nonmetallic Materialsand are the direct responsibility ofSubcommittee C03.01 on Mortars and Carbon Brick.Current edition approved Aug. 1, 2012. Published September 2012. Originallyapproved in 1991. Last previous edition a
15、pproved in 2005 as C1181 00 (2005).DOI: 10.1520/C1181-00R12.2For 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.C
16、opyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15.6 Depth Micrometer, readable to 0.0001 in. (2.5 ) withadjustable shaft length capable of reading approximately 3-in.(7.6-cm) depth.5.7 Indicating Caliper, readable to 0.001 in. (25 ).5.
17、8 Constant Temperature Oven, capable of maintaining thedesired temperature 64F (62C).5.9 Suitable Support Stand, capable of supporting the testassembly when placed under compressive load.6. Specimen Preparation6.1 Temperature Condition all grout components andmolds at 73 6 4F (23 6 2C), for at least
18、 24 h prior to use.6.2 Test Method A, UnbondedTo prevent bonding, treat allsurfaces of the mold with a suitable release agent, which willcontact the material during casting.6.3 Test Method B, Bonded:6.3.1 Prior to assembly, clean to remove foreign matter suchas rust, dirt, or scale from the grout co
19、ntact surfaces of the twobase plates.6.3.2 To prevent bonding, treat all other surfaces of themold which will contact the material during casting.6.4 Mix the grout according to manufacturers recommen-dations and pour, or otherwise place, through the fill hole in themold. The grout may be consolidate
20、d with a rounded-end rod.7. Conditioning7.1 The specimen shall remain in the mold at least 16 h at 736 4F (23 6 2C).7.2 Following the initial conditioning period, disassemblethe mold (including the end plates if using Test Method A).Maintain the specimens at 73 6 4F for a total of seven days,includi
21、ng the time in the mold.8. Test Procedure8.1 Specimen Measurement:8.1.1 Immediately following the conditioning period, mea-sure the outside diameter of the test specimen to the nearest0.001 in. (25 ) using an indicating caliper. Make twomeasurements at right angles to one another at mid-height.Recor
22、d the diameter as the average of the two measurements.8.1.2 Test Method A Using an indicating caliper, measurethe thickness of the specimen in four places around thecircumference to the nearest 0.001 in. Record the average ofthe measurements as the specimen thickness. The variation inthe four measur
23、ements shall not exceed 0.060 in. (1.5 mm).8.1.3 Test Method B Using an indicating caliper, measurethe distance between the two plates at four places around thecircumference to the nearest 0.001 in. Record the average ofthe measurements as the specimen thickness. The variation inthe four measurement
24、s shall not exceed 0.060 in. (1.5 mm).8.2 Assemble the testing apparatus as follows:8.2.1 Pass the bolt through the assembly consisting of a flatwasher, two nested spring washers, a second flat washer, twomore nested spring washers, a third flat washer, the bottomplate, the grout specimen, the top p
25、late, a fourth flat washer,and a nut.8.3 Calculate the load required to produce the test stress onthe specimen using the following formula:L 5 SSpD242 ABD(1)where:L = total force required on a specimen, lb (n),S = desired stress, psi (MPa),D = diameter of the grout cylinder, in. (mm), andAB= area of
26、 the formed bolt hole (may be taken as 1 in.2(640 mm2).8.4 Place the assembly on the support stand in the compres-sion machine or apparatus such that the load is applied directlyto the bolt head and the opposite plate, leaving the nutaccessible for tightening (see Fig. 2).8.4.1 Apply and maintain th
27、e test load.8.4.2 Tighten the nut hand-tight.8.4.3 Release the load and remove the test fixture from thecompression machine.8.5 Immediately after removing the test apparatus from thecompression machine, measure the distance between the topfaces of the plates. Make the measurements to 0.0001 in.throu
28、gh the four corner holes, using the depth micrometer.Record the individual readings and the average of all four.8.6 Place the specimen in the controlled temperature oven atselected temperature for the designated exposure period, thenremove and allow to cool at 73 6 4F (23 6 2C) for at least24 h. Rel
29、oad the specimen as in 8.4; take new readings to0.0001 in. and record, and then place specimen in the oven forthe next exposure period.8.7 Total exposure periods are shown in Table 1.8.8 Suggested schedule for a five-day work week is pre-sented in Table 2.9. Report9.1 Report the following informatio
30、n:9.1.1 Manufacturers product trade name or designation ofthe material, or both, and type and batch, or lot number, ifavailable,FIG. 1 Test SpecimenC1181 00 (2012)29.1.2 Conditioning procedure including temperature andtime,9.1.3 Test temperature,9.1.4 Load and stress applied to the grout specimen,FI
31、G. 2 Typical Arrangement to Apply the Compression Load and Hand Tighten the NutC1181 00 (2012)39.1.5 Individual data including the initial micrometer read-ings along with all the individual exposed readings andaverages with time and date of readings, and9.1.6 A graph showing the total creep in in./i
32、n. as a functionof time in the oven.10. Precision and Bias10.1 Precision and bias have not been established for thesetest methods. It is suggested that duplicate tests be run to verifyreproducibility of test results.11. Keywords11.1 chemical-resistant; compressive creep; compressivedeflection; creep
33、; polymer machinery grouts; stressASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risko
34、f infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this
35、standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake yo
36、ur views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by co
37、ntacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Total Exposure PeriodsTota
38、l OvenExposureCycle No.Cooling, minTime inOvenTime at734F242h 1 24h 24h484h 2 24h 24h1206h 3 72h 24h7d6h 4 48h 24h14d6h 5 7days 24 h28d12h 6 14days 24 hTABLE 2 Suggested Schedule, Five-day Work WeekCyclePlace inOvenRemove fromOvenMeasure andReload1 Monday (1)ATuesday (2) Wednesday (3)2 Wednesday (3) Thursday (4) Friday (5)3 Friday (5) Monday (8) Tuesday (9)4 Tuesday (9) Thursday (11) Friday (12)5 Friday (12) Friday (19) Monday (22)6 Monday (22) Monday (36) Tuesday (37)ADenotes calendar days from start of the test.C1181 00 (2012)4
