1、Designation: D7239 13 (Reapproved 2018)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 nonwoven inconstruction. This is a material purchasing specifica
4、tion, 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.1.3 For purposes of determining conformance to thisspecification, values for length or area shall
5、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 E29.1.4 The text of this standard references notes and footnotesthat pr
6、ovide explanatory material. These notes and footnotes(excluding those in tables) shall not be considered as require-ments of the standard.1.5 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.6 This standard does not purport to
7、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, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7 This international standard was d
8、eveloped in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced
9、Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD276 Test Methods for Identification of Fibers in TextilesD4354 Practice for Sampling of Geosynthetics and RolledErosion Control Products (RECPs) for TestingD4439 Terminology for GeosyntheticsD4759 Practice for Determining the Specifi
10、cation Confor-mance of GeosyntheticsD4873/D4873M Guide for Identification, Storage, and Han-dling of Geosynthetic 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
11、Determine Asphalt Retention ofPaving Fabrics Used in Asphalt Paving for Full-WidthApplicationsE29 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 D
12、4439. For definitions ofother terms relating to textiles, refer to Terminology D123.3.2 Definitions of Terms Specific to This Standard:3.2.1 hybrid geosynthetic paving mat, na planar productmanufactured from primarily inorganic materials used as anintegral part of a manmade project, structure, or sy
13、stem. It isprimarily intended for, but not limited to, bituminous pavingapplications.4. Classification4.1 TypeFive types of hybrid geosynthetic paving matsare covered in this specification as follows:4.1.1 Type IA single-layer, nonwoven paving mat of136 g m2unit weight, intended for curb-to-curb rep
14、aving ofbituminous or Portland cement concrete pavements with hotmix asphaltic concrete meeting the requirements of Table 1.1This specification is under the jurisdiction of ASTM Committee D35 onGeosynthetics and is the direct responsibility of Subcommittee D35.06 on Geosyn-thetic Specifications.Curr
15、ent edition approved June 1, 2018. Published June 2018. Originallyapproved in 2006. Last previous edition approved in 2013 as D7239 13. DOI:10.1520/D7239-13R18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of
16、 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 StatesThis international standard was developed in accordance with internationally recognized
17、principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14.1.2 Type IIxA uniaxial, high-strength hybrid geosyn-thetic paving ma
18、t 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 physical properties requirements of Table1. This material is intended for localized or spot repairs duringthe r
19、epaving of bituminous or Portland cement concretepavements with hot mix asphalt concrete.4.1.3 Type IIyA uniaxial, 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 pavin
20、g mat, and the inorganic fabricshall meet the physical properties requirements of Table 1. Thismaterial is intended for localized or spot repairs during therepaving of bituminous or Portland cement concrete pavementswith hot mix asphalt concrete.4.1.4 Type IIIA multidirectional, high-strength hybrid
21、geosynthetic paving mat consisting of a Type I mat plusreinforcement strands that are randomly oriented on the pavingmat. The reinforcement shall be attached onto the base pavingmat, and the inorganic fabric shall meet the physical propertiesrequirements of Table 1. This material is intended for loc
22、alizedor spot repairs during the repaving of bituminous or Portlandcement concrete pavements with hot mix asphalt concrete.4.1.5 Type IVA multidirectional, high-strength hybridgeosynthetic paving mat consisting of a Type I mat plusreinforcement strands in both the machine and cross direction.The rei
23、nforcement strands shall be attached onto the basepaving mat, and the inorganic fabric shall meet the physicalproperties requirements of Table 1. This material is intendedfor localized or spot repairs during the repaving of bituminousor Portland cement concrete pavements with hot mix asphaltconcrete
24、.5. Ordering Information5.1 Orders for material under this specification shall includethe following information: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 ins
25、pection is required(see Section 12), and5.1.5 Whether special packaging or marking is required (seeSection 16).6. Materials and Manufacture6.1 Fibers used in the manufacture of hybrid geosyntheticpaving mats may be inorganic or a combination of inorganicand organic fibers, and shall not melt at temp
26、eratures below205 C. Any threads used in joining paving mats by sewing orknitting shall consist of long-chain synthetic polymers, andshall also be heat stable to temperatures of 205 C. They shallbe formed into a stable network such that the filaments or yarnsretain their dimensional stability relati
27、ve to each other, includ-ing selvages.7. Mechanical Properties7.1 All property values in these specifications representminimum 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 valuesprovi
28、ded herein).8. Dimensions, Mass, and Permissible Variations8.1 Roll Sizes:8.1.1 The manufacturer and purchaser shall agree upon thelength and width of the hybrid geosynthetic paving mat rolls.8.1.1.1 Roll dimensions of all types of hybrid geosyntheticpaving mats shall not vary by more than 0.5 % of
29、the statedlength and width.8.2 Mass Measurements:8.2.1 Mass of all types of hybrid geosynthetic paving matsshall not be less than the MARV values shown in Table 1.9. Workmanship, Finish, and Appearance9.1 Rolls of hybrid geosynthetic paving mats should be freeof cuts or rips in the outer covering th
30、at may cause damage tothe integrity of the paving mat. Minor scuffing or damage to theroll may be removed by cutting off the damaged section of thepaving mat.9.2 The ends of the cardboard tubes that serve as the corearound which the hybrid geosynthetic paving mat is wrappedshould be free of serious
31、damage that might impede smoothrollout of the paving mat during application. Minor denting ortearing will not impede normal application, but severelydamaged rolls shall be returned for credit to the supplier.10. Sampling10.1 Hybrid geosynthetic paving mats shall be subject tosampling and testing to
32、verify conformance with this specifi-cation. Sampling shall be in accordance with Practice D4354,TABLE 1 Hybrid Geosynthetic Paving Mat PropertyRequirementsAProperty Test Method UnitsTypeITypeIIBTypeIIITypeIVBreaking Strength ASTMD5035C,FN/50 mm 200 3250 400 3250Ultimate Elongation ASTMD5035C,F% #5
33、#10 #10 #10Mass per Unit Area ASTMD5261g/m2125 300 300 450Asphalt Retention ASTMD6140L/m2D,ED,ED,ED,EMelting Point ASTMD276C 205 205 205 205AAll numeric values represent MARV in the weaker principal direction.BStrength measurement minimum shall represent the direction of the reinforcingfibers in the
34、 Type II product.CSample length: 250 mm. Sample width: 50 mm. Gauge length: 180 mm.Crosshead speed: 50 mm/min.DAsphalt required to saturate paving mat only. Asphalt retention must be providedin manufacturer certification (refer to Section 14). Value does not indicate theasphalt application rate requ
35、ired for construction.EAsphalt retention property must meet the MARV value provided by the manu-facturer certification (refer to Section 14).FHybrid geosynthetic paving mat materials should be manufactured in such a waythat the properties of the material are consistent. It is therefore suggested tha
36、t theoption of symmetrical testing in an off-axis orientation, for example +45 and+315, be considered to demonstrate consistent quality of manufacturing.D7239 13 (2018)2using the section titled “Procedure for Sampling for Purchas-ers Specification Conformance Testing.” In the absence ofpurchasers te
37、sting, verification may be based on manufactur-ers certifications as a result of testing by the manufacturer ofquality assurance 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
38、 product, or a truckload of the given product,whichever is smaller.11. Number of Tests and Retests11.1 Testing shall be performed in accordance with themethods referenced in this specification for the indicatedapplication. The number of specimens to test per sample isspecified by each test method. P
39、aving mat product acceptanceshall be based on Practice D4759. Product acceptance isdetermined by comparing the average test results of allspecimens within a given sample to the specification MARV.Refer to Practice D4759 for more details regarding geotextileacceptance procedures.12. Inspection12.1 Un
40、less otherwise specified in the contract or purchaseorder, the supplier shall be responsible for the performance ofall inspection requirements as specified herein.12.2 Except as otherwise specified, the supplier shall usetheir own facilities or any commercial laboratory acceptable tothe purchaser fo
41、r analysis of material. The purchaser reservesthe right to perform any of the inspections set forth in thisspecification, where such inspections are deemed necessary toensure that supplies and services conform to the prescribedrequirements.13. Rejection and Rehearing13.1 The hybrid geosynthetic pavi
42、ng mat shall be subject torejection if it fails to conform to any of the requirements of thisspecification. Rejection should 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.
43、14. Certification14.1 The supplier shall provide to the purchaser a certificatestating the name of the manufacturer, product name, hybridgeosynthetic paving mat type, composition of the hybridgeosynthetic paving mat fabric and filaments or yarns, andother pertinent information to fully describe the
44、hybrid geo-synthetic paving mat.14.2 The manufacturer is responsible for establishing andmaintaining a quality control program to ensure compliancewith the requirements of the specification.14.3 The manufacturers certificate shall state the asphaltretention rate based on the results from Test Method
45、 D6140.14.4 The manufacturers certificate shall state that the fur-nished hybrid geosynthetic paving mat meets MARV require-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.
46、14.5 Either mislabeling or misrepresentation of materialsshall be reason to reject those hybrid geosynthetic paving matproducts.15. Product Marking15.1 Hybrid geosynthetic paving mat labeling, shipment,and storage shall follow Guide D4873/D4873M. Product labelsshall clearly show the manufacturer or
47、supplier name, stylename, roll number, and length and width of roll. Each shippingdocument shall include a notation certifying that the material isin accordance with the manufacturers certificate.16. Packaging and Package Marking16.1 Each hybrid geosynthetic paving mat roll shall bewrapped with a ma
48、terial that will protect the paving mat,including the ends of the roll, from damage due to shipment,water, and contaminants. The protective wrapping shall bemaintained during periods of shipment and storage. Productlabels shall clearly show the manufacturer or supplier name,style name, and roll numb
49、er.17. Supplementary Requirements17.1 During storage, hybrid geosynthetic paving mat rollsshall be elevated off the ground and adequately 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 of71 C, and any other environmental condition that may damagethe physical property values of the paving mat.18. Keywords18.1 hybrid geosynthetic paving mats; moisture barriers;pavement joint repairs; paving mats; reflective crackingsD7239
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