1、Designation:C57901(Reapproved 2012)Standard Test Methods forCompressive Strength of Chemical-Resistant Mortars,Grouts,Monolithic Surfacings,and Polymer Concretes1This standard is issued under the fixed designation C579;the number immediately following the designation indicates the year oforiginal ad
2、option or,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.This standard has been approved for use by agencies of the Department of Defense.1.Scope
3、1.1 These test methods cover the determination of thecompressive strength of chemical-resistant mortars,grouts,monolithic surfacings,and polymer concretes.These materialsmay be based on resin,silicate,silica,or sulfur binders.1.2 Test Method A outlines the testing procedure generallyused for systems
4、 containing aggregate less than 0.0625 in.(1.6mm)in size.Test Method B covers the testing proceduregenerally used for systems containing aggregate from 0.0625to 0.4 in.(1.6 to 10 mm)in size.Test Method C is used forsystems containing aggregate larger than 0.4 in.1.3 These test methods provide two di
5、fferent methods forcontrolling the testing rate.1.4 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.1.5 This standard does not purport to
6、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 Documents2.1 ASTM Standards:2C470/C470M Spe
7、cification for Molds for Forming ConcreteTest Cylinders VerticallyC904 Terminology Relating to Chemical-Resistant Nonme-tallic MaterialsE4 Practices for Force Verification of Testing Machines3.Terminology3.1 DefinitionsFor definitions of terms used in these testmethods,see Terminology C904.4.Signifi
8、cance and Use4.1 These test methods offer a means of determining thecompressive strength of chemical-resistant mortars,grouts,monolithic surfacings,and polymer concretes.5.Apparatus5.1 Equipment,capable of weighing materials or specimensto 60.3%accuracy.5.2 Specimen Molds:5.2.1 Test Method AThese mo
9、lds shall be right cylinder 16132in.(25 6 0.8 mm)in diameter by 1 6132in.high.Themolds may be constructed in any manner that will allowformation of a test specimen of the desired size.Typical moldsconsist of a 1-in.thick,flat plastic sheet in which 1-in.diameter,smooth-sided holes have been cut,and
10、to the bottomof which a14-in.(6-mm)thick,flat plastic sheet(withoutmatching holes)is attached by means of screws or bolts.Alternately,the molds may consist of sections of round plastictubing or pipe,1-in.inside diameter and 1 in.long,havingsufficient wall thickness to be rigid and retain dimensional
11、stability during the molding operation,and a14-in.thick,flatplastic sheet on which one open end of each section can berested.With the latter style of mold,the tubing segment may besealed with a material,such as caulking compound or stopcockgrease.For most types of specimens it is satisfactory to sim
12、plyseal one end of the tubing segment with masking tape.NOTE1For use with sulfur mortars an additional piece of flat plasticsheet at least18in.(3 mm)thick containing a14-in.(6-mm)hole and asection of plastic tubing or pipe 1 in.(25 mm)in diameter by 1 in.highare required.They are used to form a pour
13、ing gate and reservoir in thepreparation of sulfur mortar specimens.5.2.2 Test Method BMolds for the 2 in.(50 mm)cubespecimens shall be tight fitting and leakproof.The molds shallhave not more than three cube compartments and shall beseparable into not more than three parts.The parts of themolds,whe
14、n assembled,shall be positively held together.Themolds shall be made of materials not attacked by the product1These test methods are under the jurisdiction of ASTM Committee D01 onPaint and Related Coatings,Materials,and Applications and are the directresponsibility of Subcommittee D01.46 on Industr
15、ial Protective Coatings.Current edition approved Aug.1,2012.Published September 2012.Originallyapproved in 1968.Last previous edition approved in 2006 as C579 01(2006).DOI:10.1520/C0579-01R12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at servic
16、eastm.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 Box C700,West Conshohocken,PA 19428-2959.United States1 being tested.The sides of the molds shall be sufficiently rigidto prevent spreading or warping.The interior faces of themolds shall be manufactured to ensure plane surfaces with apermissible variation of 0.002 in.(0.05 mm).The distancesbetween opposite faces shall
