ASTM_C_399_-_98_2012.pdf

Designation:C39998(Reapproved 2012)Standard Practice forUse of Chemical-Resistant Resin Mortars1This standard is issued under the fixed designation C399;the number immediately following the designation indicates the year oforiginal adoption 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.1.Scope1.1 This practice provides information on the handling andproper use of chemical-resistant resin mortars such as thosecovered in Specification C395.NOTE1Resin mortars and grouts are differentiated as follows:resingrouts are applied to the joints,generally14in.(6 mm)wide,after thebrick or tile are set in place(grouting or tile setters method).Resinmortars are troweled onto the brick or tile,generally in a18in.(3 mm)thickness,before the brick are laid in place(buttering or bricklayersmethod).Refer to Practice C723.1.2 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.1.3 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 practices and determine the applica-bility of regulatory limitations prior to use.Specific precau-tions are given in Sections 5 and 5.2.2.Referenced Documents2.1 ASTM Standards:2C279 Specification for Chemical-Resistant Masonry UnitsC305 Practice for Mechanical Mixing of Hydraulic CementPastes and Mortars of Plastic ConsistencyC386 Practice for Use of Chemical-Resistant Sulfur MortarC395 Specification for Chemical-Resistant Resin MortarsC410 Specification for Industrial Floor BrickC723 Practice for Chemical-Resistant Resin Grouts forBrick or TileC904 Terminology Relating to Chemical-Resistant Nonme-tallic MaterialsC980 Specification for Industrial Chimney Lining Brick3.Terminology3.1 DefinitionsFor definitions of terms used in thispractice,see Terminology C904.4.Storage4.1 When stated on the package,the manufacturers recom-mendations shall be followed.In all cases,storage shall be ina dry place with containers tightly closed and away from openflames.Some resins should be stored in a cool place attemperatures as low as 40 to 50F(5 to 10C)to extend theirshelf life.Powder or resin that has become wet or otherwisecontaminated shall not be used.5.Hazards5.1 Consult manufacturers Material Safety Data Sheet forprecautions to be taken when using chemical-resistant resinmortars.5.2 Solvents used for cleaning tools are generally flam-mable.(WarningOpen flames must be kept from the area.“No Smoking”signs should be posted.)6.Equipment6.1 For hand mixing,a shallow mortar box should beprovided.A suggested size is 2 ft2by 4 in.(600 mm2by 100mm)deep.6.2 Equipment for power-mixing ranges from small mixers,such as described in Practice C305,to simple beaters used onlow-speed motors.A suitable container is a round-bottom panor a 5-gal(20-L)pail,which is commonly available.6.3 Equipment may be required for heating or coolingmaterials as conditions dictate.6.4 All mixing equipment should be clean and dry.7.Mixing7.1 For hand mixing,measure the liquid into the mortar box,then stir the powder in gradually,working out all lumps and airbubbles.Mix with a masons trowel or other suitable tool.7.2 For power mixing,measure the liquid into the containerand mix in the powder gradually and uniformly.7.3 Mortars shall be mixed in accordance with the manu-facturers specifications.It is recommended that some means1This practice is under the jurisdiction of ASTM Committee C03 on Chemical-Resistant Nonmetallic Materialsand is the direct responsibility of SubcommitteeC03.02 on Monolithics,Grouts and Polymer Concretes.Current edition approved Aug.1,2012.Published September 2012.Originallyapproved in 1957.Last previous edition approved in 2008 as C399 98(2008)1.DOI:10.1520/C0399-98R12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Serivce 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 Box C700,West Conshohocken,PA 19428-2959.United States1 of measuring be devised so that the batches are uniform.Simple volume measurements may be used,but weighing ispreferred.Consult the manufacturer if variations in proportionsare being considered.7.4 Batch size should be varied according to temperature.Inhot weather,batches may be as small as 10 lb(5 kg),and incold weather they may be increased to as much as 50 lb(23kg).7.5 No additives such as sand,portland cement,or watershould be added.7.6 Containers of resins and powders should be closed whennot being used.8.Handling8.1 Resin mortars cure very slowly at low temperature