1、Designation: A849 10A849 15Standard Specification forPost-Applied Coatings, Pavings, and Linings for CorrugatedSteel Sewer and Drainage Pipe1This standard is issued under the fixed designation A849; the number immediately following the designation indicates the year oforiginal adoption or, in the ca
2、se 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.1. Scope*1.1 This specification covers post-applied coatings, pavings, and linings for corrugated stee
3、l pipe and corrugated steel structuralplate pipe, pipe-arches, and arches coated, paved, or lined with specified materials over either metallic coatings or metallic coatingswith polymer coatings. This specification includes asphalt, polymerized asphalt, polymer, mastic, and emulsion coatings andasph
4、alt and concrete pavements and linings applied to the pipe in the producing plant, as well as, asphalt and mastic coatingsapplied in the field. Field-applied concrete pavements and linings are covered by Specification A979/A979M. The pipe to whichthe coatings are applied is described in Specificatio
5、ns A760/A760M, A761/A761M, and A762/A762M.1.2 There is no cleaning operation currently included in pipe coating practice. However, experience has shown that a cleansubstrate provides good adherence for both cold- and hot-applied post coatings. The performance of post coating or lining, or both,will
6、depend on the surface cleanliness over which it is applied.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in brackets are for information only.1.4 The following safety hazards caveat pertains only to the test methods portions, Sections 11 and 12, of this s
7、pecification.Thisstandard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations priorto use.2. Refere
8、nced Documents2.1 ASTM Standards:2A185/A185M Specification for Steel Welded Wire Reinforcement, Plain, for Concrete (Withdrawn 2013)3A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete ReinforcementA742/A742M Specification for Steel Sheet, Metallic Coated and Polymer Preco
9、ated for Corrugated Steel PipeA760/A760M Specification for Corrugated Steel Pipe, Metallic-Coated for Sewers and DrainsA761/A761M Specification for Corrugated Steel Structural Plate, Zinc-Coated, for Field-Bolted Pipe, Pipe-Arches, and ArchesA762/A762M Specification for Corrugated Steel Pipe, Polyme
10、r Precoated for Sewers and DrainsA862/A862M Practice for Application of Asphalt Coatings to Corrugated Steel Sewer and Drainage PipeA926 Test Method for Comparing the Abrasion Resistance of Coating Materials for Corrugated Metal PipeA979/A979M Specification for Concrete Pavements and Linings Install
11、ed in Corrugated Steel Structures in the FieldC31/C31M Practice for Making and Curing Concrete Test Specimens in the FieldC33 Specification for Concrete AggregatesC39/C39M Test Method for Compressive Strength of Cylindrical Concrete SpecimensC150 Specification for Portland CementC309 Specification f
12、or Liquid Membrane-Forming Compounds for Curing ConcreteC595 Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in ConcreteC670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials1 T
13、his specification is under the jurisdiction ofASTM Committee A05 on Metallic-Coated Iron and Steel Products and is the direct responsibility of Subcommittee A05.17on Corrugated Steel Pipe Specifications.Current edition approved Dec. 1, 2010May 1, 2015. Published January 2011May 2015. Originally appr
14、oved in 1985. Last previous edition approved in 20052010 asA849 - 00A849 - 10.(2005). DOI: 10.1520/A0849-10.10.1520/A0849-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, r
15、efer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the
16、 previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary o
17、f Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D5 Test Method for Penetration of Bituminous MaterialsD6 Test Method for Loss on Heating of Oil and Asphaltic CompoundsD36 Test Metho
18、d for Softening Point of Bitumen (Ring-and-Ball Apparatus)D70 Test Method for Density of Semi-Solid Bituminous Materials (Pycnometer Method)D92 Test Method for Flash and Fire Points by Cleveland Open Cup TesterD1005 Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micromet
19、ersD1187 Specification for Asphalt-Base Emulsions for Use as Protective Coatings for MetalD2042 Test Method for Solubility of Asphalt Materials in TrichloroethyleneD4402 Test Method for Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational Viscometer3. Terminology3.1 Definit
20、ions:3.1.1 fabricator, nrefers to the producer of the pipe who generally applies the post coatings, pavings, and linings, except forthose pipes that are coated in the field.3.1.2 lining, nfor corrugated metal pipe, a layer of nonmetallic material applied to the interior of a fabricated pipe, ofsuffi
21、cient thickness to fill and cover the corrugations.3.1.3 manufacturer, nrefers to the producer of the sheet.3.1.4 paving, nfor corrugated metal pipe, a lining applied only to a portion of the interior circumference, usually the lowerportion as installed.3.1.5 post coating, n for corrugated metal pip
22、e, a layer of nonmetallic material applied to the interior or exterior surface ofthe pipe, or both, after fabrication of the pipe.3.1.6 DiscussionCoating is generally used to refer to a layer or layers of material applied to the base metal in sheet form priorto fabrication into pipe. Post coating ap
23、plies to a layer of nonmetallic material applied after fabrication into pipe.Where the contextis clear, coating may be used in place of post coating.3.1.7 purchaser, nrefers to the purchaser of the finished product.4. Significance and Use4.1 Post-applied coatings, linings, and pavements are used to
24、improve hydraulic characteristics, corrosion resistance, or abrasionresistance, or a combination thereof. Generally, coatings improve corrosion resistance and are especially effective on the outside(soil side) of the pipe.While coatings improve abrasion resistance to varying degrees, pavements gener
25、ally are used where abrasionis a significant consideration. Pavements improve abrasion resistance, protect the metallic and other coatings, and increasecorrosion resistance. Smooth pavements, even though they typically cover only the invert of the pipe, improve hydraulic flowcharacteristics. Full li
26、nings and pavements, generally, provide all three benefits.4.2 Applications:4.2.1 Asphalt, polymer-modified asphalt, and polymer provide excellent corrosion resistance to the outside (soil side) of thepipe. These materials provide varying degrees of internal (water side) corrosion protection dependi
27、ng on the severity of abrasiveflow conditions. Polymer-modified asphalt and polymer coatings provide longer-term protection than asphalt in more abrasiveconditions.4.2.2 Asphalt pavements are used for abrasive conditions. Where conditions involve repeated high flow velocities moving aheavy bed load
28、of gravel or rocks, or both, concrete pavements are appropriate (see Specification A979/A979M).4.2.3 Full asphalt linings enhance hydraulics while providing a completely “paved” interior. Full concrete linings arehigh-strength concrete that provides a lining similar in thickness to asphalt linings.
29、They enhance hydraulic performance and offerabrasion protection, which is not as effective as the abrasion protection offered by a thicker concrete pavement.5. Classification5.1 The post-applied coatings, pavings, and linings are described in this section as a two-step classification procedure. The
30、firstclassification is the type of coating, paving, or lining material to be used, for example, hot-applied asphalt, concrete, cold-appliedmastic, cold-applied emulsion, polymer, or combination thereof. The second is a coating, paving, and lining type giving thephysical location of the coating or li
31、ning on the pipe (see Table 1).5.2 Material Classes:5.2.1 Class AAsphalt,5.2.2 Class PAPolymer modified asphalt, hot applied,5.2.3 Class CConcrete,5.2.4 Class MMastic, either asphalt base or tar base, cold applied,5.2.5 Class PPolymer, and5.2.6 Class EAsphaltic emulsion.A849 1525.3 Coating, Paving,
32、and Lining Types:5.3.1 Fully CoatedA uniform coating applied to the interior and exterior of the pipe.5.3.2 Half CoatedAuniform coating applied to the interior and exterior of the pipe covering at least 50 % of the circumferenceon the lower portion of the pipe as installed.5.3.3 Exterior CoatedA uni
33、form coating applied to the exterior of the pipe.5.3.4 Interior CoatedA uniform coating applied to the interior of the pipe .5.3.5 Invert CoatingA uniform coating on the lower portion of the interior of the pipe as installed (the invert) to provideabrasion and corrosion resistance without filling th
34、e corrugations.5.3.6 Invert PavedA paving on the lower portion of the interior of the pipe as installed (the invert) to provide anabrasion-resistant smooth flow line.5.3.7 Fully LinedA lining filling the corrugations on the full interior of the pipe to provide a smooth interior.6. Ordering Informati
35、on6.1 The pipe to be coated shall be described as to the applicable standard (Specification A760/A760M, A761/A761M, orA762/A762M), including all detailed ordering provisions of that specification.6.2 Orders for pipe coatings to this specification shall include the following information as necessary
36、to adequately describe thedesired product,6.2.1 Class of material,6.2.2 Type of coating, paving, or lining,6.2.3 If post coating is to be applied in the plant or in the field (Note 1).NOTE 1Class M (mastic) and Class E (emulsions) coatings are suitable for either plant application or field applicati
37、on.6.2.4 For Class M, whether asphalt base or tar base material,6.2.5 For concrete invert paved material Class C, amount of reinforcement (see 7.2.2.5),6.2.6 ASTM designation and year of issue,6.2.7 Certification, if required, on the post coating, and,6.2.8 Any special requirements.7. Material Requi
38、rements7.1 Material Class A (Asphalt Material)The asphalt material shall be applied in accordance with Practice A862/A862M andshall meet the following requirements as applied to a pipe:7.1.1 Softening Point200F 93C min.7.1.2 Penetration (Original Material)35 to 65 dmm.7.1.3 Penetration (Residue from
39、 Loss on Heating)85 % of original penetration, min.7.1.4 Flash Point450F 232C min.7.1.5 Solubility99 % min.7.1.6 Specific Gravity0.98 min at 77F 25C.7.1.7 Loss on Heating1 % max.7.1.8 ShockThe asphalt shall be considered acceptable if not more than one of the four test specimens shows a crack. Test
40、asdescribed in 11.2.7.1.9 FlowThe asphalt shall be considered acceptable if the flow does not exceed 38 in. 9.5 mm for either of the two testspecimens. Test as described in 11.3.7.1.10 ImperviousnessThere shall not be any loosening or separation of the asphalt coating from the substrate at the end o
41、f48 h when tested as described in 11.4.TABLE 1 Location and Material ClassPhysicalLocationAAsphalt,Hot-AppliedPAPolymerizedAsphalt,Hot-AppliedCConcreteM/ECold-AppliedAPPolymerInterior-coated M/E PExterior-coated M/E PFully-coated A PA M/E PHalf-coated A PA M/E PFully-lined A C Invert-paved A PA C PI
42、nvert-coated PA PAMay be plant or field applied.A849 1537.2 Material Class C (Concrete Material)Full concrete linings shall meet the requirements of 7.2.1. Concrete paved invertsshall meet the requirements of 7.2.2.7.2.1 Concrete LiningsFull concrete linings shall cover 100 % of the pipe circumferen
43、ce. Linings shall be placed by a machinethat, in one or more passes, completely fills the corrugation and provides a minimum 18 in. 3.2 mm concrete thickness over thecorrugation crests. Hand placement methods are acceptable for lining fittings and elbows when machine placement is not practicaland th
44、e above results are achieved. The lining shall conform to the shape of the pipe and have a troweled surface finish meetingthe requirements of 9.1.2.1.7.2.1.1 The concrete shall be composed of cement, fly ash (when used), fine aggregates, and water that are well mixed and ofsuch consistency as to pro
45、duce a dense, homogeneous, nonsegregated lining. In no case shall the proportions of portland cement,blended cement, or portland cement plus pozzolanic material in the mixture be less than 470 lb/yd3 279 279 kgkg/mm3 ofconcrete. The concrete mix shall provide a minimum seven day compressive strength
46、 of 5000 psi 34.5 MPa 34.5 MPa whentested in accordance with Practice C31/C31M and Test Method C39/C39M. Concrete linings shall be cured to meet therequirements of 7.2.3. All concrete shall have a water-cement ratio not exceeding 0.50 by weight.7.2.1.2 CementCement shall conform to the requirements
47、of Specification C150, Type I or II or Specification C595, Type IP.When Type IP cement is used, no fly ash shall be used in the mix.7.2.1.3 Fly AshFly ash shall conform to the requirements of Specification C618, Class F or Class C. When fly ash is used,it shall not exceed 20 % by weight of the total
48、 cementitious materials in the mix.7.2.1.4 AggregatesAggregates shall conform to the requirements of Specification C33 except that the requirement forgradation and uniformity of gradation shall not apply. The aggregate shall be well graded with 100 % passing the No. 16 1.18 mmsieve with no more than
49、 5 % passing the No. 100 150 m sieve.7.2.1.5 Only potable water shall be used.7.2.2 Concrete PavementsSpecial pavement designs that meet or exceed the requirements of this specification shall be fullydetailed in the purchase documents. In lieu of a special design, pavements shall cover the bottom 25 % of a round pipescircumference and the 40 % of the circumference of a pipe arch that constitutes the invert. Pavements shall conform to the shapeof the pipe and have either a screeded or
