ASTM_D_3910_-_15.pdf

Designation:D391015Standard Practices forDesign,Testing,and Construction of Slurry Seal1This standard is issued under the fixed designation D3910;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 These practices cover the design,testing,and construc-tion of mixtures for surface treatment of pavements.It iswritten as a guide and should be used as such.End-usespecifications should be adapted to conform to job and userrequirements.1.2 The values stated in SI units are to be regarded as thestandard.The non-SI units used in this standard are allowed bythe sub-committee for clarification in the use of the 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.2.Referenced Documents2.1 ASTM Standards:2C128 Test Method for Relative Density(Specific Gravity)and Absorption of Fine AggregateD242 Specification for Mineral Filler For Bituminous Pav-ing MixturesD977 Specification for Emulsified AsphaltD1073 Specification for Fine Aggregate for BituminousPaving MixturesD2397 Specification for Cationic Emulsified AsphaltD2419 Test Method for Sand Equivalent Value of Soils andFine AggregateE145 Specification for Gravity-Convection and Forced-Ventilation Ovens2.2 Other Documents:3ISSA A105 Recommended Performance Guidelines ForEmulsified Asphalt Slurry SealISSA Technical Bulletin No.139 Test Method to ClassifyEmulsified Asphalt/Aggregate Mixture Systems by Modi-fied Cohesion Tester Measurement of Set and Cure Char-acteristics.3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 emulsified asphalt slurry seal mixtures as related tothese practices,mixtures of fine aggregate with or withoutmineral filler,with or without mixing water,uniformly mixedwith emulsified asphalt.4.Significance and Use4.1 These slurry seal practices are written as a guide andshould not be construed as specifications.4.2 End-use specifications should be adopted to conform tojob and user requirements.5.Design5.1 Aggregates:5.1.1 The fine aggregate shall consist of natural or manu-factured sand,slag,crushed fines or other mineral aggregatethat conforms to the quality requirements of SpecificationD1073.5.1.2 Recommended grading requirements are shown inTable 1.These requirements are taken from those given inISSA A105.5.1.3 Smooth-textured sand of less than 1.25%water ab-sorption shall not exceed 50%of the total combined aggregate.(For heavy duty surface requirements,use 100%crushedmaterial.)5.1.4 When tested by Test Method D2419,the combinedaggregate prior to the addition of any chemically active mineralfillers shall have a sand equivalent of not less than 45.1These practices are under the jurisdiction of ASTM Committee D04 on Roadand Paving Materialsand are the direct responsibility of Subcommittee D04.24 onAsphalt Surface Treatments.Current edition approved June 15,2015.Published September 2015.Originallyapproved in 1980.Last previous edition approved in 2011 as D3910 11.DOI:10.1520/D3910-15.2For 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.3Available from the International Slurry SurfacingAssociation,3 Church Circle,PMB 250,Annapolis,MD 21401.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.2 Mineral Filler:5.2.1 Mineral fillers are of two types,chemically active andchemically inactive.Both shall conform to Specification D242.5.2.2 Chemically active mineral fillers such as portlandcement,hydrated lime,and ammonium sulfate are used toimprove the workability,regulate the setting time and,in somecases,to alter the aggregate gradation.5.2.3 Chemically inactive mineral fillers such as limestonedust,flyash,and rock dust are used mainly to alter aggregategradation.5.3 Emulsified AsphaltThe emulsified asphalt shall con-form to Grade SS-1h of Specification D977,for emulsifiedasphalt,or Grade CSS-1h of Specification D2397,for cationicemulsified asphalt.5.3.1 Quick-Set emulsified asphalts,QS-1h and CQS-1hmay also be used.They shall conform to Specifications D977and D2397,respectively.Refer to the International SlurrySurfacing Association(ISSA)Bulletin No.139.5.4 Composition of Slurry Seal Mixtures:5.4.1 A job mixture shall be selected that conforms to thespecification limits,and that is suitable for the traffic,climaticconditions,curing condi