ASTM C199-1984(2011) Standard Test Method for Pier Test for Refractory Mortars《耐火灰浆耐火性的标准试验方法》.pdf

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1、Designation: C199 84 (Reapproved 2011)Standard Test Method forPier Test for Refractory Mortars1This standard is issued under the fixed designation C199; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A n

2、umber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This test method covers the determination of refractori

3、-ness of all types of refractory mortar by heating a pier of bricklaid up with the test mortar to learn whether the prescribed heattreatment causes the mortar to flow out of the joints.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathem

4、aticalconversions to SI units that are provided for information onlyand are not considered standard.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 heal

5、th practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C24 Test Method for Pyrometric Cone Equivalent (PCE) ofFireclay and High Alumina Refractory MaterialsC113 Test Method for Reheat Change of Refractory Brick3. Significance a

6、nd Use3.1 This test method is used to estimate the applicationtemperature limits of a refractory mortar and will establish itsclassification.3.2 This test method will be regarded as a pass or fail testbecause the results are based on observations of whether themortar flowed from the joints as a resu

7、lt of the heat treatmentused.3.3 Results obtained by this test method will not agree withthose obtained in service when heating is done from only oneside.3.4 This test method is not applicable for testing nonaque-ous mortars.4. Apparatus4.1 BrickThree 9-in. (228-mm) straight fireclay or high-alumina

8、 brick, conforming to the following respective require-ments for refractories:Class of Mortar to be Tested PCE,ANot Lower than Cone No.High-alumina 36Super-duty 33High-duty 3112Medium-duty 29ASee Test Method C24.4.2 Spacing RodsNine joint-thickness spacing rods madeof332-in. (2-mm) diameter drill ro

9、d, cut into 6-in. (152-mm)lengths.4.3 Drying Oven, to accommodate five 9-in. (228-mm)straight brick standing on end, for use at 220 to 230F (105 to110C).4.4 Furnace, capable of heating the test pier uniformly atone of four temperatures, the highest being 3100F (1705C).5. Sampling5.1 The sample of mo

10、rtar evaluated will be a prepared testsample of about 10 lb (4.5 kg). If a larger quantity is presented,ranging in size up to a commercial container, it must bereduced in size to about 10 lb (4.5 kg) for evaluation. To dothis, the contents of the container shall be thoroughly mixed inthe container,

11、or transferred without loss to a clean imperviousreceptacle of larger size and mixed thoroughly to a uniformconsistency.A10 lb (4.5 kg) test sample shall then be taken andsealed in a metal or glass container.6. Test Specimens6.1 The test mortar shall be of troweling consistency. Whenworking with wet

12、 mortars not at this consistency smallamounts of water will be added, followed by thorough mixinguntil a troweling consistency is achieved. For dry mortars, themortar shall be thoroughly mixed with water to a trowelingconsistency, and allowed to stand in a suitable sealed containerfor a period of no

13、t less than 16 h before preparing the testspecimen.7. Procedure7.1 Construction of Pier:1This test method is under the jurisdiction of ASTM Committee C08 onRefractories and is the direct responsibility of Subcommittee C08.01 on Strength.Current edition approved March 1, 2011. Published May 2011. Ori

14、ginallyapproved in 1945. Last previous edition approved in 2005 as C199 84 (2005).DOI: 10.1520/C0199-84R11.2For 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 stand

15、ards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7.1.1 The pier shall consist of two whole brick and twohalf-brick laid flat. The top and bottom brick shall be wholebrick, and between thes

16、e the two half-brick shall be placed sothat the original ends will form a vertical joint in the center ofthe pier. The class of mortar being tested shall determine therefractoriness of the brick to be used, as prescribed in 4.1.Uniformity in thickness of the joints in the pier shall beattained with

17、the aid of the spacing rods.7.1.2 Apply the mortar to the large face of one of the wholebrick, after which place four spacing rods across it,12 in. (13mm) from the ends and12 in. on either side of the center.7.1.3 Coat a large face and the original end of a half-brickwith mortar and place the coated

18、 face in contact with the rodson the lower brick. Prepare the other half-brick in the samemanner, and when putting it in position to complete the verticaljoint, place a spacing rod across and in the center of that joint.Also use four rods to form the top horizontal joint. Use mortarin excess of that

19、 actually required to form the joints.7.1.4 Adjust the rods so that their ends are flush with oneside of the pier. Firmly press or rub the brick units together sothat the joints formed will not exceed18 in. (3 mm) inthickness. Carefully remove the excess mortar from the joints,particularly on the si

20、de where the rods are flush.7.1.5 Remove the spacing rods as soon as the mortar hasdeveloped an initial set, to prevent bulging of the mortar fromthe joint.7.2 Drying and Heat Treatment of Pier:7.2.1 After constructing the pier and removing the spacingrods, allow it to air-dry undisturbed at room te

21、mperature for 24h, and then oven-dry at 220 to 230F (105 to 110C) for 18 h(overnight).7.2.2 Carry out the heat treatment for each of the classes ofmortar in accordance with all applicable portions of TestMethod C113, as shown in the following table:Class of MortarHeating Schedule(from heating schedu

22、le table in Test Method C113)Super-dutyHigh-dutySchedule C (2910F (1600C)Schedule C, except that upon reaching 2730F(1500C) in approximately 3 h, that temperatureshall be maintained for 5 hMedium-duty Schedule B (2550F (1400C)For high-alumina mortars the schedule shall be as follows:Elapsed Time Fro

23、mStart of Heating, hTemperature,F (C)1 1500 (815)2 2300 (1260)3 2750 (1510)4 3010 (1655)5 3100 (1705)Maintain for 5 h8. Report8.1 The report shall include the following:8.1.1 Class of mortar for which the sample was tested, and8.1.2 Whether or not the mortar flowed out of the joints asa result of th

24、e heat treatment.9. Precision and Bias9.1 No justifiable statement of precision and bias is possiblebecause the results of the test are word descriptions of visualobservations rather than numerical values based on finitemeasurements.10. Keywords10.1 mortar; pier test; refractoriesASTM International

25、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 riskof infringement of such rights, are entirely their own

26、 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 standard or for additional standardsand should be add

27、ressed 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 your views known to the ASTM Committee on Standards, at

28、 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 contacting 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/).C199 84 (2011)2