1、Designation: C 1181 00 (Reapproved 2005)Standard Test Methods forCompressive Creep of Chemical-Resistant PolymerMachinery Grouts1This standard is issued under the fixed designation C 1181; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revi
2、sion, 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 These test methods cover a quantitative, comparativetest for compressive creep of chemical-resistan
3、t groutingmaterials 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
4、specimen. Test Method B covers the moldingtechniques for a bonded test specimen.1.3 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.4 This standard does not purport to address all of thesafety concerns, if any, associ
5、ated 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 Documents2.1 ASTM Standards:2C 904 Terminology Relating to Chemical-Resistant Non-metall
6、ic Materials3. Terminology3.1 DefinitionsFor definitions of terms used in these testmethods, see Terminology C 904.4. Significance and Use4.1 These test methods provide a means of measuring thetotal compressive deflection of chemical-resistant, machinery-grout materials under a sustained load at the
7、 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 after the initial loading of the specimen atlaboratory temperature. The results
8、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 during the test. They may, also, bepart of the mold used to cast the grout speci
9、men.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. A 118-in. (30-mm) diameter hole shall be drilled inthe center of the plates. The edges of the plates and holes shallbe deburred.5.1.2 One of the steel plates sh
10、all 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, andspring washers are used to maintain the test load.5.3 Belleville Spring W
11、ashersFour 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 have an approximate spring rate of 153 000 lb/in.(27 300 kg/cm) and a rated
12、 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 to within 0.030 in. (0.75 mm) over the 4-in. diameterspecimen contact area (
13、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 %.5.6 Depth Micrometer, readable to 0.0001 in. (2.5 ) withadjustable shaft length capable
14、of reading approximately 3-in.(7.6-cm) depth.1These test methods are under the jurisdiction of ASTM Committee C03 onChemical-Resistant Nonmetallic Materials and are the direct responsibility ofSubcommittee C03.01 on Mortars and Carbon Brick.Current edition approved April 1, 2005. Published April 200
15、5. Originallyapproved in 1991. Last previous edition approved in 2000 as C 1181 00.2For 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 pa
16、ge onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.7 Indicating Caliper, readable to 0.001 in. (25 ).5.8 Constant Temperature Oven, capable of maintaining thedesired temperature 64F (62C).5.9 Suitable Support Sta
17、nd, capable of supporting the testassembly when placed under compressive load.6. Specimen Preparation6.1 TemperatureCondition all grout components andmolds at 73 6 4F (23 6 2C), for at least 24 h prior to use.6.2 Test Method A, UnbondedTo prevent bonding, treatall surfaces of the mold with a suitabl
18、e release agent, whichwill contact 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 contact surfaces of the twobase plates.6.3.2 To prevent bonding, treat all other surfaces of themold which will
19、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 consolidated with a rounded-end rod.7. Conditioning7.1 The specimen shall remain in the mold at least 16 h at 736 4F (23
20、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,including the time in the mold.8. Test Procedure8.1 Specimen Measurement:8.1.1 Immediately following the conditioning
21、 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.Record the diameter as the average of the two measurements.8.1.2 Test Method AUsing an indicating caliper, measuret
22、he 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 measurements shall not exceed 0.060 in. (1.5 mm).8.1.3 Test Method BUsing an indicating caliper, measurethe distance
23、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 measurements shall not exceed 0.060 in. (1.5 mm).8.2 Assemble the testing apparatus as follows:8.2.1 Pass the bolt through
24、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 plate, a fourth flat washer,and a nut.8.3 Calculate the load required to produce the test stress onthe specimen u
25、sing 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 the formed bolt hole (may be taken as 1 in.2(640 mm2).8.4 Place the assembly on the support stand in the compr
26、es-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 the test load.8.4.2 Tighten the nut hand-tight.8.4.3 Release the load and remove the test fixture from thecompres
27、sion 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.through the four corner holes, using the depth micrometer.Record the individual readings and the average of all four
28、.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. Reload the specimen as in 8.4; take new readings to0.0001 in. and record, and then place specimen in the oven fort
29、he 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 information:9.1.1 Manufacturers product trade name or designation ofthe material, or both, and type and batch, or lot num
30、ber, ifavailable,9.1.2 Conditioning procedure including temperature andtime,9.1.3 Test temperature,9.1.4 Load and stress applied to the grout specimen,9.1.5 Individual data including the initial micrometer read-ings along with all the individual exposed readings andaverages with time and date of rea
31、dings, and9.1.6 A graph showing the total creep in in./in. as a functionof time in the oven.FIG. 1 Test SpecimenC 1181 00 (2005)2FIG. 2 Typical Arrangement to Apply the Compression Load and Hand Tighten the NutC 1181 00 (2005)310. Precision and Bias10.1 Precision and bias have not been established f
32、or thesetest methods. It is suggested that duplicate tests be run to verifyreproducibility of test results.11. Keywords11.1 chemical-resistant; compressive creep; compressivedeflection; creep; polymer machinery grouts; stressASTM International takes no position respecting the validity of any patent
33、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 riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at
34、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 standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments
35、 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 your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by
36、 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 contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail)
37、; or through the ASTM website(www.astm.org).TABLE 1 Total Exposure PeriodsTotal OvenExposureCycle No.Cooling, minTime inOvenTime at73 6 4F24 6 2h 1 24h 24h48 6 4h 2 24h 24h120 6 6h 3 72h 24h7d6 6h 4 48h 24h14 d 6 6 h 5 7 days 24 h28 d 6 12 h 6 14 days 24 hTABLE 2 Suggested Schedule, Five-day Work We
38、ekCyclePlace 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.C 1181 00 (2005)4
