1、Designation:C19984(Reapproved 2016)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 number i
2、n 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 U.S.Department of Defense.1.Scope1.1 This test method covers the determination of refractori-ness o
3、f 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 mathematicalco
4、nversions 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 health practice
5、s 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 and Use3.1 This
6、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 result of the heat
7、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 brick,conforming
8、to the following respective require-ments for refractories:Class of Mortar to be TestedPCE,ANot Lower than Cone No.High-alumina36Super-duty33High-duty3112Medium-duty29ASee Test Method C24.4.2 Spacing RodsNine joint-thickness spacing rods madeof332-in.(2-mm)diameter drill rod,cut into 6-in.(152-mm)le
9、ngths.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 mortar evaluated will be a prepared te
10、stsample 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,or transferred without loss to a clean imper
11、viousreceptacle 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 mortars not at this consistency smallamounts of
12、 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 not less than 16 h before preparing the testspecimen.1
13、This 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 June 1,2016.Published June 2016.Originallyapproved in 1945.Last previous edition approved in 2011 as C199 84(2011).DOI:10.1520/
14、C0199-84R16.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO
15、Box C700,West Conshohocken,PA 19428-2959.United States1 7.Procedure7.1 Construction of Pier: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 these the two half-brick shall be placed sothat the original ends will form
16、 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 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,12in.(13mm)from the ends and12in.on either side of the center.7.1.3 Coat a large face and the original end of a half-brickwith mortar