1、Designation: D5710/D5710M 15Standard Specification forTrinidad Lake Modified Asphalt1This standard is issued under the fixed designation D5710/D5710M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the year of last revision. A num
2、ber in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers Trinidad lake modified asphaltfor use in the construction of pavements.1.2 This specification covers the followi
3、ng penetrationgrades:40556075801001201501.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two sy
4、stems may result in non-conformancewith the standard.1.4 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 o
5、f regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D5 Test Method for Penetration of Bituminous MaterialsD92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD113 Test Method for Ductility of Bituminous MaterialsD140 Practice for Sampling Bituminous Mate
6、rialsD482 Test Method for Ash from Petroleum ProductsD1754 Test Method for Effects of Heat and Air on AsphalticMaterials (Thin-Film Oven Test)D1856 Test Method for Recovery of Asphalt From Solutionby Abson MethodD2170 Test Method for Kinematic Viscosity of Asphalts(Bitumens)D2172 Test Methods for Qu
7、antitative Extraction of BitumenFrom Bituminous Paving MixturesD7553 Test Method for Solubility of Asphalt Materials inN-Propyl Bromide3. Manufacture3.1 Trinidad lake modified asphalt shall be prepared byblending naturally occurring Trinidad Lake asphalt (TLA) (20to 50 %) with asphalt cement obtaine
8、d by the refining of crudepetroleum by methods suitable to produce a homogeneous finalproduct. The percentage TLA in the blend shall be clearlystated by the supplier. Fillers other than those from TLA willnot be allowed in the asphalt cement blend.4. Properties4.1 The blended Trinidad Lake modified
9、asphalt shall behomogeneous as determined by appropriate sampling andtesting.4.2 The various grades of Trinidad Lake modified asphaltshall conform to the requirements prescribed in Table 1.5. Sampling and Testing5.1 The material shall be sampled and the properties enu-merated in this specification s
10、hall be determined in accordancewith the following ASTM International standards:NOTE 1Local agencies will determine sampling and testing proce-dures before a contract is awarded. Methods that have been used includesampling at various levels from storage tanks or transports followed bypenetration tes
11、ting or spectroscopic examination of these samples.5.1.1 SamplingPractice D140.5.1.2 PenetrationTest Method D5.5.1.3 Flash PointTest Method D92.5.1.4 Thin-Film Oven TestTest Method D1754.5.1.5 Solubility in N-Propyl BromideTest Method D7553.5.1.6 DuctilityTest Method D113.5.1.7 Inorganic Material (A
12、sh)Test Method D482.5.1.8 Quantitative Extraction of Bitumen from BituminousPaving MixturesTest Method D2172.5.1.9 Recovery of Asphalt from Solution by Abson MethodTest Method D1856.5.1.10 Kinematic Viscosity of AsphaltTest Method D2170.1This specification is under the jurisdiction of ASTM Committee
13、 D04 on Roadand Paving Materials and is under the direct responsibility of Subcommittee D04.40on Asphalt Specifications.Current edition approved June 1, 2015. Published July 2015. Originally approvedin 1995. Last previous edition approved in 2013 as D5710/D5710M 13. DOI:10.1520/D5710_D5710M-15.2For
14、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 Box C700,
15、West Conshohocken, PA 19428-2959. United States16. Keywords6.1 pavement construction; Trinidad Lake modified asphaltAPPENDIX(Nonmandatory Information)X1. CORRECTION TO MIX FINES TO COMPENSATE FOR FINES IN TRINIDAD LAKE ASPHALTX1.1 Since Trinidad Lake asphalt contains some fines, itmay be desirable t
16、o make a correction to the minus 75 m No.200 fines in the mix to compensate. A formula used by theUtah DOT has been developed based on 36 % mineral matterwith 91.2 % passing the 75 m No. 200 and is included forinformation.Fines Correction 5 32.83 xPB! xPT! (X1.1)where:P(B) = Percent binder in total
17、mix expressed as a decimal andP(T) = Percent Trinidad Lake asphalt in total binder ex-pressed as a decimal.X1.1.1 ExampleIf a mix contains 5.8 % binder by weightof mix and the total binder consists of 25 % Trinidad Lakeasphalt:Fine contributed by Trinidad Lake Asphalt =32.83(0.058)(0.25) = 0.48 %AST
18、M International 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 en
19、tirely their own 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 standardsa
20、nd should be addressed 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
21、on Standards, at 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
22、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 Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1 Requirements f
23、or Trinidad Lake Modified Asphalt for Use in Pavement ConstructionPenetration Grademin max min max min max min maxPenetration at 25C 77F, 100 g, 5 s 40 55 60 75 80 100 120 150Kinematic viscosity at 135C 275F, cst 385 275 215 175 Ductility at 25C 77F, 5 cm/min, cm 100 100 100 100 Flash point, C F 232
24、450 232450 232450 232450Solubility in N-Propyl Bromide, %A77 90 77 90 77 90 77 90Retained penetration after thin-film oven test, % 55 52 47 42 Ductility at 25C 77F, 5 cm/min, cm, after Thin-FilmOven Test50 50 75 100 Inorganic matter (ash), % 7.5 19.0 7.5 19.0 7.5 19.0 7.5 19.0ASolubility requirements to be established by the user, within this range, from targeted percentage of TLA in blend.D5710/D5710M 152
