1、Designation: D7239 06 (Reapproved 2011)Standard Specification forHybrid Geosynthetic Paving Mat for Highway Applications1This standard is issued under the fixed designation D7239; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the
2、 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 is a material specification covering hybrid geosyn-thetic paving mats typically used for, but not limite
3、d to, use injoint and localized (spot) pavement repairs; and paving matsintended for curb-to-curb coverage to provide a moisturebarrier for the pavement structure and retard reflective crackingin bituminous overlays. They are typically non-woven inconstruction. This is a material purchasing specific
4、ation anddesign review of use is recommended.1.2 This is not a construction or design specification. Thisspecification is based on hybrid geosynthetic paving matsurvivability from installation stresses. The values stated in SIunits are to be regarded as the standard.1.3 For purposes of determining c
5、onformance to this speci-fication, values for length or area shall be rounded to thenearest 0.1 m or 0.1 m2, respectively. Values for mass shall berounded to the nearest gram, and for force to the nearestNewton, and volume to the nearest 0.01 L, in accordance withthe rounding method in Practice E29.
6、1.4 The text of this standard references notes and footnotesthat provide explanatory material. These notes and footnotes(excluding those in tables) shall not be considered as require-ments of the standard.1.5 Specific safety recommendations are presented inSection 6.1.6 This standard does not purpor
7、t 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:2D123
8、Terminology Relating to TextilesD276 Test Methods for Identification of Fibers in TextilesD4354 Practice for Sampling of Geosynthetics for TestingD4439 Terminology for GeosyntheticsD4759 Practice for Determining the Specification Confor-mance of GeosyntheticsD4873 Guide for Identification, Storage,
9、and Handling ofGeosynthetic Rolls and SamplesD5035 Test Method for Breaking Force and Elongation ofTextile Fabrics (Strip Method)D5261 Test Method for Measuring Mass per Unit Area ofGeotextilesD6140 Test Method to Determine Asphalt Retention ofPaving Fabrics Used in Asphalt Paving for Full-WidthAppl
10、icationsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications3. Terminology3.1 Definition of TermsFor definitions of terms relating togeotextiles, refer to Terminology D4439. For definitions ofother terms relating to textiles, refer to Terminology D123.3.
11、2 Definition of Term Specific to This Standard:3.2.1 hybrid geosynthetic paving mat, na planar productmanufactured from primarily inorganic materials used as anintegral part of a man-made project, structure, or system. It isprimarily intended for, but not limited to bituminous pavingapplications.4.
12、Classification4.1 TypeFive types of hybrid geosynthetic paving matsare covered in this specification as follows:4.1.1 Type IA single layer non-woven paving mat of 136g/m2unit weight intended for curb-to-curb repaving of bitu-minous or Portland cement concrete pavements with hot mixasphaltic concrete
13、 meeting the requirements of Table 1.4.1.2 Type IIxA uniaxial high-strength hybrid geosyn-thetic paving mat consisting of a Type I mat plus reinforcementstrands in the machine direction. The reinforcement strandsshall be attached onto the base paving mat, and the inorganicfabric shall meet the physi
14、cal properties requirements of Table1. This material is intended for localized or spot repairs duringthe repaving of bituminous or Portland cement concretepavements with hot mix asphalt concrete.1This specification is under the jurisdiction of ASTM Committee D35 onGeosynthetics and is the direct res
15、ponsibility of Subcommittee D35.03 on Perme-ability and Filtration.Current edition approved June 1, 2011. Published July 2011 Originally approved2006. Last previous version approved 2006 as D723906. DOI: 10.1520/D7239-06R11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcont
16、act 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, United States.4.1.3 Type IIyA uniaxi
17、al high-strength hybrid geosyn-thetic paving mat consisting of a Type I mat plus reinforcementstrands in the cross direction. The reinforcement strands shallbe attached onto the base paving mat, and the inorganic fabricshall meet the physical properties requirements of Table 1. Thismaterial is inten
18、ded for localized or spot repairs during therepaving of bituminous or Portland cement concrete pavementswith hot mix asphalt concrete.4.1.4 Type IIIAmultidirectional high-strength hybrid geo-synthetic paving mat consisting of a Type I mat plus reinforce-ment strands that are randomly oriented on the
19、 paving mat. Thereinforcement shall be attached onto the base paving mat, andthe inorganic fabric shall meet the physical properties require-ments of Table 1. This material is intended for localized or spotrepairs during the repaving of bituminous or Portland cementconcrete pavements with hot mix as
20、phalt concrete.4.1.5 Type IVAmultidirectional high-strength hybrid geo-synthetic paving mat consisting of a Type I mat plus reinforce-ment strands in both the machine and cross direction. Thereinforcement strands shall be attached onto the base pavingmat, and the inorganic fabric shall meet the phys
21、ical propertiesrequirements of Table 1. This material is intended for localizedor spot repairs during the repaving of bituminous or Portlandcement concrete pavements with hot mix asphalt concrete.5. Ordering Information5.1 Orders for material under this specification shall includethe following infor
22、mation:5.1.1 This specification designation and date of issue,5.1.2 Type I, II, III, or IV paving mat,5.1.3 Amount in square meters or square yards required,5.1.4 Whether special sampling for inspection is required(see Section 13),5.1.5 Whether special packaging or marking is required (seeSection 17
23、).6. Recommended Personal Protective Equipment6.1 Respiratory ProtectionA properly fitted NIOSH ap-proved disposable N 95 series dust respirator such as the 3Mmodel 8210 (model 8271 in high humidity environments) orequivalent should be used under the following conditions:6.1.1 Any dusty environment.
24、6.1.2 When mechanically altering product (mechanicaltransfer, crushing, grinding, milling or other similar dustgenerating processes). Use respiratory protection in accordancewith your companys respiratory protection program, localregulations and OSHA regulations under 29 CFR 1910.134.6.2 Skin Protec
25、tionNormal work clothing (long sleevedshirts and long pants) is recommended. Use gloves. Skinirritation is known to occur chiefly at the pressure points suchas around the neck, wrists, waist, and between the fingers.6.3 Eyes/Face Protective EquipmentWear safety glassesor goggles.7. Materials and Man
26、ufacture7.1 Fibers used in the manufacture of hybrid geosyntheticpaving mats may be inorganic or a combination of inorganicand organic fibers, and shall not melt at temperatures below205C (400F). Any threads used in joining paving mats bysewing or knitting shall consist of long-chain synthetic poly-
27、mers, and shall also be heat stable to temperatures of 205C(400F). They shall be formed into a stable network such thatthe filaments or yarns retain their dimensional stability relativeto each other, including selvages.8. Mechanical Properties8.1 All property values in these specifications represent
28、minimum average roll values (MARV; that is, average testresults of any roll in a lot sampled for conformance or qualityassurance testing shall meet or exceed the minimum valuesprovided herein).9. Dimensions, Mass, and Permissible Variations9.1 Roll Sizes:9.1.1 The manufacturer and purchaser shall ag
29、ree upon thelength and width of the hybrid geosynthetic paving mat rolls.9.1.1.1 Roll dimensions of all types of hybrid geosyntheticpaving mats shall not vary more than 0.5 % of the stated lengthand width.9.2 Mass Measurements:9.2.1 Mass of all types of hybrid geosynthetic paving matsshall not be le
30、ss than the MARV values shown in Table 1.10. Workmanship, Finish and Appearance10.1 Rolls of hybrid geosynthetic paving mats should befree of cuts or rips in the outer covering that may cause damageto the integrity of the Paving mat. Minor scuffing or damage tothe roll may be removed by cutting off
31、the damaged section ofthe Paving mat.10.2 The ends of the cardboard tubes that serve as the corearound which the hybrid geosynthetic paving mat is wrappedshould be free of serious damage that might impede smoothrollout of the Paving mat during application. Minor denting ortearing will not impede nor
32、mal application, but severelydamaged rolls shall be returned for credit to the supplier.11. Sampling11.1 Hybrid geosynthetic paving mats shall be subject tosampling and testing to verify conformance with this specifi-cation. Sampling shall be in accordance with Practice D4354,TABLE 1 Hybrid Geosynth
33、etic Paving Mat PropertyRequirementsAProperty Test Method UnitsTypeITypeIIBTypeIIITypeIVBreaking Strength ASTM D5035CN/50 mm 200 3250 400 3250Ultimate Elongation ASTM D5035C% # 5 # 10 # 10 # 10Mass per Unit Area ASTM D5261 g/m2125 300 300 450Asphalt Retention ASTM D6140 L/m2 D,ED,ED,ED,EMelting Poin
34、t ASTM D276 C 205 205 205 205AAll numeric values represent MARV in the weaker principal direction.BStrength measurement minimum shall represent the direction of the reinforc-ing fibers in the Type II product.CSample length: 250 mm. Sample width: 50 mm. Gauge length: 180 mm.Crosshead speed: 50 mm/min
35、.DAsphalt required to saturate paving mat only. Asphalt retention must beprovided in manufacturer certification (refer to Section 15). Value does not indicatethe asphalt application rate required for construction.EAsphalt retention property must meet the MARV value provided by themanufacturer certif
36、ication (refer to Section 15).D7239 06 (2011)2using the section titled, “Procedure for Sampling for Purchas-ers Specification Conformance Testing.” In the absence ofpurchasers testing, verification may be based on manufactur-ers certifications as a result of testing by the manufacturer ofquality ass
37、urance samples obtained using the procedure forSampling for Manufacturers Quality Assurance (MQA) Test-ing. A lot size shall be considered to be the shipment quantityof the given product, or a truckload of the given product,whichever is smaller.12. Number of Tests and Retests12.1 Testing shall be pe
38、rformed in accordance with themethods referenced in this specification for the indicatedapplication. The number of specimens to test per sample isspecified by each test method. Paving mat product acceptanceshall be based on Practice D4759. Product acceptance isdetermined by comparing the average tes
39、t results of allspecimens within a given sample to the specification MARV.Refer to Practice D4759 for more details regarding geotextileacceptance procedures.13. Inspection13.1 Unless otherwise specified in the contract or purchaseorder, the supplier shall be responsible for the performance ofall ins
40、pection requirements as specified herein.13.2 Except as otherwise specified, the supplier shall usetheir own facilities or any commercial laboratory acceptable tothe purchaser for analysis of material. The purchaser reservesthe right to perform any of the inspections set forth in thisspecification w
41、here such inspections are deemed necessary toensure that supplies and services conform to the prescribedrequirements.14. Rejection and Rehearing14.1 The hybrid geosynthetic paving mat shall be subject torejection if it fails to conform to any of the requirements of thisspecification. Rejection shoul
42、d be reported to the producer orsupplier promptly and in writing. In case of dissatisfaction withthe results of the test, the producer or supplier may make claimfor a rehearing.15. Certification15.1 The supplier shall provide to the purchaser a certificatestating the name of the manufacturer, produc
43、t name, hybridgeosynthetic paving mat type, composition of the hybridgeosynthetic paving mat fabric and filaments or yarns, andother pertinent information to fully describe the hybrid geo-synthetic paving mat.15.2 The manufacturer is responsible for establishing andmaintaining a quality control prog
44、ram to assure compliancewith the requirements of the specification.15.3 The manufacturers certificate shall state the asphaltretention rate based on the results from Test Method D6140.15.4 The manufacturers certificate shall state that the fur-nished hybrid geosynthetic paving mat meets MARV require
45、-ments of the specification as evaluated under the manufactur-ers quality control program.Aperson having legal authority tobind the manufacturer shall attest to the certificate.15.5 Either mislabeling or misrepresentation of materialsshall be reason to reject those hybrid geosynthetic paving matprod
46、ucts.16. Product Marking16.1 Hybrid geosynthetic paving mat labeling, shipment,and storage shall follow Guide D4873. Product labels shallclearly show the manufacturer or supplier name, style name,roll number, and length and width of roll. Each shippingdocument shall include a notation certifying tha
47、t the material isin accordance with the manufacturers certificate.17. Packaging and Package Marking17.1 Each hybrid geosynthetic paving mat roll shall bewrapped with a material that will protect the paving mat,including the ends of the roll, from damage due to shipment,water, and contaminants. The p
48、rotective wrapping shall bemaintained during periods of shipment and storage. Productlabels shall clearly show the manufacturer or supplier name,style name, and roll number.18. Supplementary Requirements18.1 During storage, hybrid geosynthetic paving mat rollsshall be elevated off the ground and ade
49、quately covered toprotect them from the following: site construction damage,precipitation, chemicals that are strong acids or strong bases,flames including welding sparks, temperatures in excess of71C (160F), and any other environmental condition that maydamage the physical property values of the paving mat.19. Keywords19.1 hybrid geosynthetic paving mat; moisture barrier;pavement joint repair; paving mat; reflective crackingASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin thi
