DIN 2880-1999 Application of cement mortar lining for cast iron pipes steel pipes and fittings《铸铁管、钢管和管接头的水泥砂浆管衬料的应用》.pdf

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1、ICS 23.040.99; 91.100.10Anwendung von Zementmrtel-Auskleidung frGussrohre, Stahlrohre und FormstckeIn keeping with current practice in standards published by the International Organization for Standardization(ISO), a comma has been used throughout as the decimal marker.Ref. No. DIN 2880 : 1999-01Eng

2、lish price group 11 Sales No. 011109.04DEUTSCHE NORM January 1999 No part of this translation may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Tr

3、anslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.Cement mortar linings for cast iron pipes,steel pipes, and steel fittingsContinued on pages 2 to 12.This standard,together with DIN EN 545,January 1995 edition, andDIN EN 598,

4、 November 1994 edition,partially supersedes DIN 2614,February 1990 edition.2880ForewordThis standard has been prepared by Technical Committee Zementmrtelauskleidungen of the Normenaus-schuss Rohrleitungen und Dampfkesselanlagen (Pipelines and Boilers Standards Committee).AmendmentsThis standard diff

5、ers from the February 1990 edition of DIN 2614 in that it has been harmonized withDIN EN 545 and DIN EN 598.Previous editionDIN 2614: 1990-02.ContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Normative references . .

6、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Types of cement mortar and cement mortar lining . . . . . . . . . . . . . . . . 35 Design of linings at

7、 ends of pipes and fittings . . . . . . . . . . . . . . . . . . . . 56 Water aggressive to concrete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Suitability of cement mortar linings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Evaluation of cracks and gaps i

8、n linings . . . . . . . . . . . . . . . . . . . . . . . . . 99 Commissioning of pipe systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1010 Mechanical properties of lined pipelines . . . . . . . . . . . . . . . . . . . . . . . 10Annex A Fresh mortar analysis . . . . . . . . . .

9、 . . . . . . . . . . . . . . . . . . . . . . . . 11Annex B Resistance of organic modifiers to saponification . . . . . . . . . . 12Annex C Determining the corrosion resistance of cement mortarto acidic water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Explanat

10、ory notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Page 2DIN 2880 : 1999-01All dimensions are in millimetres.1 ScopeThis standard covers cement mortar linings for pipes and pipelines as in DIN EN 545, DIN EN 598 and ISO 4179,for onshore and offs

11、hore pipelines as in DIN EN 10298, as well as for buried pipes as in DVGW-Arbeitsblatt(DVGW Code of practice) W 343.Pipes and fittings with cement mortar linings are used to convey different types of water, such as drinking water,untreated water, sea and salt water, and brine. Such linings may be de

12、emed to be protective coatings as definedin DIN 50902, and serve to improve the hydraulic properties of the pipes, prevent corrosion damage (cf. ISO 8044) such as damage to the pipe material due to pitting, impairment of the hydraulic properties of the pipeline due to incrustation by corrosion produ

13、cts, impairment of the water quality due to the presence of corrosion products.To ensure the linings fulfil their purpose, they shall be sufficiently resistant to various media. This is achievedby selecting linings which meet the requirements of this standard as specified for the application under c

14、on-sideration. This standard also gives guidance on the commissioning and operation of water pipes with cementmortar linings (see also DVGW-Arbeitsblatt W 346).2 Normative referencesThis standard incorporates, by dated or undated reference, provisions from other publications. These norma-tive refere

15、nces are cited at the appropriate places in the text, and the titles of the publications are listed below.For dated references, subsequent amendments to or revisions of any of these publications apply to thisstandard only when incorporated in it by amendment or revision. For undated references, the

16、latest edition ofthe publication referred to applies.DIN 1045-1 Plain, reinforced and prestressed concrete structures Design and constructionDIN 1045-2 Plain, reinforced and prestressed concrete structures Specification, performance, produc-tion and conformity of concrete (Application document for u

17、se with DIN EN 206)DIN 1045-3 Plain, reinforced and prestressed concrete structures WorkmanshipDIN 1045-4 Plain, reinforced and prestressed concrete structures Supplementary specifications gov-erning the production and conformity of precast concrete elementsDIN 1048-1 Testing concrete Testing of fre

18、sh concreteDIN 1164 Special cement Composition, requirements and conformity evaluationDIN 1986-3 Site drainage systems Operation and maintenanceDIN 2614 Cement mortar linings for steel and ductile iron pipes and fittings Application, requirementsand testingDIN 50902 Protective coatings on metals Con

19、cepts, application methods and surface preparationDIN EN 545 Ductile iron pipes, fittings, accessories and their joints for water pipelines Requirementsand test methodsDIN EN 598 Ductile iron pipes, fitting, accessories and their joints in sewerage applications Require-ments and test methodsDIN EN 1

20、0298 Steel tubes and fittings for onshore and offshore pipelines Internal lining with cementmortar*)DIN EN 14647 Calcium aluminate cement Composition, specifications and conformity criteria*)DIN ISO 3310-1 Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth(ISO 331

21、0-1 : 2000)ISO 4179 : 1985 Ductile iron pipes for pressure and non-pressure pipelines Centrifugal cement mortar lining General requirementsISO 8044 : 1999 Corrosion of metals and alloys Basic terms and definitions*) Currently at draft stage.Page 3DIN 2880 : 1999-01ATV-Arbeitsblatt A 110 Richtlinien

22、fr die hydraulische Dimensionierung und den Leistungsnachweis vonAbwasserkanlen und -leitungen (Guidelines for the hydraulic design and performance testing of drains andsewers)ATV-Arbeitsblatt A 115 Hinweise fr das Einleiten von Abwasser in eine ffentliche Abwasseranlage (Instruc-tions on the discha

23、rge of waste water into public sewerage systems)DVGW-Arbeitsblatt W 302 Hydraulische Berechnung von Rohrleitungen und Rohrnetzen Druckverlust-Tafeln fr Rohrdurchmesser von 40 bis 2 000 mm (Hydraulic design of pipelines and pipework systems Headloss tables for pipe diameters of 40 mm to 2 000 mm)DVGW

24、-Arbeitsblatt W 343 Zementmrtelauskleidung von erdverlegten Guss- und Stahlrohrleitungen Ein-satzbereiche, Anforderungen und Prfungen (Cement mortar lining of buried ductile iron and steel pipes Areasof application, requirements and testing)DVGW-Arbeitsblatt W 346 Guss- und Stahlrohrleitungsteile mi

25、t ZM-Auskleidung Handhabung (Handling ofcast iron and steel pipe fittings with cement mortar linings)DVGW-Arbeitsblatt W 347 Hygienische Anforderungen an zementgebundene Werkstoffe im Trinkwasser-bereich Prfung und Bewertung (Health requirements for cement-bound materials used in water supplysystems

26、 Testing and evaluation)Verordnung zur Novellierung der Trinkwasserverordnung (German Regulation amending the German DrinkingWater Regulation), as of 21 May 2001, BGBl. (German Federal Law Gazette) I, 2001, No. 24, pp. 959 980BS 915-2 : 1972 Specification for high alumina cement Metric unitsNF P 15-

27、315 Liants hydrauliques Ciment alumineux fondu3 ConceptsFor the purposes of this standard, the concepts specified in the DIN 1045 series of standards apply, in additionto the following.3.1 PlasticizerOrganic admixture that increases the workability of cement with a particularly low water content, i.

28、e. that witha solids content lower than about 1%.3.2 Polymer modifierOrganic addition that improves the corrosion resistance and other physical properties of cement. The polymer/cement ratio, k, is lower than about 10%.3.3 Mix ratioThe ratio by mass of sand to cement, whereby the latter may contain

29、up to 10% pozzolana.NOTE: When determining the influence of the water/cement ratio on the lining properties, it should be takeninto account that as the mix ratio increases, the density remains the same if the water/cement ratio alsoincreases (e.g. cement mortar with a mix ratio of 1,0 and a w/c rati

30、o of 0,3 has a similar density to that witha mix ratio of 2,5 and a w/c ratio of 0,4).The mix ratio and w/c ratio of fresh mortar can be determined using the methods described in Annex A. Thesemethods may also be used for mortar with a polymer/cement ratio of 0,1, for which the methods specifiedin p

31、roduct standards might not be suitable.4 Types of cement mortar and cement mortar lining4.1 Composition and designationTables 1 and 2 specify symbols for cement mortar and cement mortar linings according to composition and thelining process used, respectively. The effects of the lining process and m

32、ortar composition on the lining itselfare described below.Page 4DIN 2880 : 1999-01Symbol forDescription (e.g. material used)cement type admixtureN CEM I and CEM III as in DIN 1164S HS cement as in DIN 1164A High alumina cement as in BS 915-2 or NF P 15-315 No organic modifier L Plasticizer*)R Polyme

33、r modifier*)*) See subclause 4.5 and Annexes B and C.Examples of designating cement mortar:CM S-L cement mortar containing HS cement and plasticizersCM A cement mortar containing high alumina cement and no plasticizer/modifierCM R any cement mortar containing polymer modifierTable 2: Designation of

34、lining processes (CML)Lining process DesignationCentrifugal casting ICentrifugal spraying IIManual lining IIIExamples of designating cement mortar linings:CML III-S-R lining of HS cement with polymer modifier, applied manuallyCML II-A lining of high alumina cement, no modifier, applied by centrifuga

35、l sprayingCML I lining applied by centrifugal casting4.2 Lining processesPipes and fittings shall be lined either by means of centrifugal casting (process I in table 2) or centrifugalspraying (process II in table 2). Manual lining (process III in table 2) may be used for repair work, to make goodthe

36、 joints during pipelaying, and for the lining of fittings.The process used has no influence on the resistance of the lining, as long as the mortar used has equivalentvalues for the water/cement ratio and mix ratio. Lower water/cement ratios produce greater density, which canbe advantageous in lining

37、s in pipes that convey water aggressive to concrete (see clause 6). Linings containingmortar having a relatively high mix ratio have a lower tendency to crack and are used especially in pipes of largenominal sizes.NOTE: There are two variants of process II (centrifugal spraying): In one variant the

38、lining is smoothed by meansof subsequent rotation at a speed greater than ten times the acceleration due to gravity, and the resultinglining is equivalent to that obtained using process I. Because mixing water is expelled in this case, testsamples are to be taken directly from the applied lining. Th

39、is variant of process II, as well as process I, areto be used at the works only, and not on the site or storage area. If the lining is applied using process II butis not smoothed by means of rotation, it is equivalent to that obtained using process III. This variant ofprocess II may be used on site

40、or at the storage area.Mortar with a relatively low mix ratio, or where necessary for technical reasons, mortar containing a polymermodifier (type CM R; see table 1) is used when the lining is applied at the site by centrifugal spraying or manually.Table 1: Designation of cement mortar types (CM)Pag

41、e 5DIN 2880 : 1999-014.3 Cement mortarsThe resistance of linings containing cement type CEM I *) varies very little from that of linings made with cementtype CEM III*), except where pipes convey salt water or brine, in which case cement type CEM III is moresuitable (see subclauses 7.6 and 7.7).4.4 C

42、M A type cement mortarCM A type cement mortar (high alumina cement mortar) is extremely resistant to aggressive water (see clauses 6and 7). Curing conditions can have an effect on the degree of this resistance.4.5 Cement mortar containing organic admixturesAll organic admixtures and additions used i

43、n mortars are to be resistant to saponification. The saponificationresistance of mortar can be determined using the method described in Annex B.4.5.1 Cement mortar containing plasticizers (CM L)CM L type cement mortar with a low water/cement ratio is highly resistant to cracking and can be made resi

44、stantto aggressive salt water (see clauses 6 and 7).4.5.2 Cement mortar containing polymer modifiers (CM R)CM R type cement mortar is highly resistant to all aggressive water (see clauses 6 and 7).4.6 Repair mortarMortar used to repair lining damage and for making good linings at welds generally has

45、 a fairly low mix ratioand often contains a polymer modifier (type CM R).4.7 Cement mortar for water supply pipesAdmixtures and additions used in cement mortar linings of pipes conveying drinking water and untreated watershall meet the requirements specified in DVGW-Arbeitsblatt W 347.4.8 Cement mor

46、tar for pipes conveying acidic waterThe corrosion resistance of CM A type and CM R type cement mortar to acidic water (see subclause 6.3) canbe established using the method described in Annex C.5 Design of linings at ends of pipes and fittings5.1 Socket ends, flanged ends and threaded endsPipes with

47、 ring seal socket or spigot ends of either the push-in type or the type intended for welding shall belined to the bottom of the socket or spigot. Any ring seal grooves are not to be lined.In the case of flanged socket pieces and collars (see DIN EN 545), the lining is to be applied in such a way tha

48、tit is possible to slip the fitting onto the pipe barrel.5.2 Ends to be weldedPipes of size DN 600 or greater that will be exposed to vehicular traffic are normally to be jointed by butt welding(see figure 1). The lining shall end about 25 mm before the pipe end. After the joint has been made, the u

49、nlinedspace is to be filled in with repair mortar.*) Symbol as used in DIN 1164.1 Lining applied at works2 Steel pipe3 Lining applied on siteFigure 1: Butt-welded joint in steel pipe intended for exposure to vehicular traffic (schematic)Page 6DIN 2880 : 1999-01The following designs may be used for pipes and fittings whether they are intended for vehicular traffic or not.Linings are to be applied to the end of the pipe or fitting and then cut back at least 3 mm as shown for design Aor design B in figure 2. Des