1、Designation: D 5710 05Standard Specification forTrinidad Lake Modified Asphalt1This standard is issued under the fixed designation D 5710; 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 paren
2、theses indicates the year of last reapproval. Asuperscript epsilon (e) 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 following penetrat
3、iongrades:40556075801001201502. 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 MaterialsD 140 Practice for Sampling Bituminous MaterialsD 4
4、82 Test Method for Ash from Petroleum ProductsD 1754 Test Method for Effects of Heat and Air on Asphal-tic Materials (Thin-Film Oven Test)D 1856 Test Method for Recovery of Asphalt From Solu-tion by Abson MethodD 2042 Test Method for Solubility of Asphalt Materials inTrichloroethyleneD 2170 Test Met
5、hod for Kinematic Viscosity of Asphalts(Bitumens)D 2172 Test Methods for Quantitative Extraction of Bitu-men From Bituminous Paving Mixtures3. Manufacture3.1 Trinidad lake modified asphalt shall be prepared byblending naturally occurring Trinidad lake asphalt (TLA) (20to 50 %) with asphalt cement ob
6、tained by the refining of crudepetroleum by methods suitable to produce a homogeneous finalproduct. The percentage TLA in the blend must 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 modif
7、ied 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 specificati
8、on shall be determined in accordancewith the following ASTM 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 testing or sp
9、ectroscopic examination of these samples.5.1.1 SamplingPractice D 140.5.1.2 PenetrationTest Method D5.5.1.3 Flash PointTest Method D92.5.1.4 Thin-Film Oven TestTest Method D 1754.5.1.5 Solubility in TrichloroethyleneTest Method D 2042.5.1.6 DuctilityTest Method D113.5.1.7 Inorganic Material (Ash)Tes
10、t Method D 482.5.1.8 Quantitative Extraction of Bitumen from BituminousPaving MixturesTest Method D 2172.5.1.9 Recovery of Asphalt from Solution by Abson MethodTest Method D 1856.5.1.10 Kinematic Viscosity of AsphaltTest MethodD 2170.1This specification is under the jurisdiction of ASTM Committee D0
11、4 on Roadand Paving Materials and is under the direct responsibility of Subcommittee D04.40on Asphalt Specifications.Current edition approved June 1, 2005. Published July 2005. Originally approvedin 1995. Last previous edition approved in 2003 as D 571003.2For referenced ASTM standards, visit the AS
12、TM 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Unit
13、ed States.APPENDIX(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 to make a correction to the minus No. 200 (75m) fines in the mix to compensate. A formula used by theUtah D
14、OT has been developed based on 36 percent mineralmatter with 91.2 percent passing the No. 200 (75 m) and isincluded for information.Fines Correction 5 32.83 xPB! xPT! (X1.1)where:P(B) = Percent binder in total mix expressed as a decimal,andP(T) = Percent Trinidad Lake Asphalt in total binder ex-pres
15、sed as a decimal.Example:If a mix contains 5.8 percent binder by weight of mix and thetotal binder consists of 25 percent Trinidad Lake Asphalt:Fine contributed by Trinidad Lake Asphalt =32.83(0.058)(0.25) = 0.48 percent.ASTM International takes no position respecting the validity of any patent righ
16、ts 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 entirely their own responsibility.This standard is subject to revision at any
17、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 standardsand should be addressed to ASTM International Headquarters. Your comments wil
18、l 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 on Standards, at the address shown below.This standard is copyrighted by AST
19、M 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 at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or
20、 through the ASTM website(www.astm.org).TABLE 1 Requirements for Trinidad Lake Modified Asphalt for Use in Pavement ConstructionPenetration Grademin max min max min max min maxPenetration at 77F (25C), 100 g, 5 s 40 55 60 75 80 100 120 150Kinematic viscosity at 275F (135C), cst 385 275 215 175 Ducti
21、lity at 77F (25C), 5 cm/min, cm 100 100 100 100 Flash point, F 450 450 450 450 Solubility in trichloroethylene,%A77 90 77 90 77 90 77 90Retained penetration after thin-film oven test,% 55 52 47 42 Ductility at 77F (25C), 5 cm/min, cm, after Thin-Film Oven Test 50 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.D5710052
