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1、BRITISH STANDARD BS 5911-5:2004 Concrete pipes and ancillary concrete products Part 5: Specification for prestressed non-pressure pipes and fittings with flexible joints ICS 23.040.50 ? Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:37:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5911
2、-5:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee and comes into effect on 31 October 2004 BSI 1 September 2004 The following BSI references relate to the work on this British Standard: Committee reference B/505 Draft for comment 99/109528
3、 DC ISBN 0 580 44294 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Committee B/505, Wastewater engineering, upon which the following bodies were represented: British Plastics Federation British Water CMF Cast Metals Federation Chartered
4、Institution of Water and Environmental Management Clay Pipe Development Association Ltd. CPSA Concrete Pipeline Systems Association Institute of Cast Metal Engineers Institute of Civil Engineers Institute of Plumbing LOTAG London Technical Advisors Group ODPM (represented by Waterman Burrow Crock) S
5、ociety of British Water Industries Water UK Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:37:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5911-5:2004 BSI 1 September 2004 i Contents Page Committees responsibleInside front cover
6、 Forewordii 1Scope1 2Normative references1 3Terms and definitions2 4Symbols4 5General requirements4 6Special requirements9 7Conformity evaluation11 8Marking12 Annex A (informative) Information to be supplied in an enquiry or order13 Annex B (informative) British Standards relevant to BS EN 1916:2002
7、13 Annex C (normative) Supplementary provisions for prestressing wire14 Annex D (nornative) Surface finish tests20 Annex E (normative) Dimensional tests22 Bibliography25 Figure 1 Typical section of a prestressed concrete pipe with a spigot and socket joint2 Figure 2 Typical splay pipes3 Figure C.1 A
8、 test cylinder and its accessories16 Figure C.2 Test tank and arrangement of a test cylinder in acid solution17 Figure C.3 A wire-wrapped test cylinder19 Figure C.4 Typical arrangement for winding a test cylinder20 Figure D.1 Gauge for assessing surface eveness20 Figure D.2 Gauge for assessing surfa
9、ce voids21 Figure E.1 Gauge for measuring deviation from internal straightness23 Table 1 Symbols4 Table 2 Cementitious content5 Table 3 Cement or combination groups6 Table 4 Nominal sizes, internal manufacturing diameters and tolerances of units8 Table 5 Minimum crushing loads for strength class 120
10、 units9 Table B.1 British Standards relevant to BS EN 1916:200213 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:37:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5911-5:2004 ii BSI 1 September 2004 Foreword The several parts of BS 5911 specify requirements for various types of concrete
11、 pipe and ancillary concrete products such as manholes, inspection chambers and street gullies. BS 5911-5 has been prepared under the direction of Technical Committee B/505. It is a revision of BS 5911-103:1994, which will be withdrawn on 31 October 2004 when BS 5911-5 comes into effect. BS EN 1916:
12、2002 covers unreinforced, steel fibre and reinforced concrete pipes and fittings with flexible joints, but does not contain all the requirements of the existing national specifications of CEN members because complete agreement could not be achieved. BS 5911-1:2002 contains requirements from the form
13、er BS 5911-100 that could not be agreed upon for inclusion in EN 1916. Prestressed non-pressure concrete pipes are manufactured for the same market as unreinforced and reinforced ones but are not covered by any existing or proposed European Standard. Nevertheless, for consistency and convenience it
14、was appropriate for BS EN 1916 to be used in connection with this revision of BS 5911-103, even though the scope of the former standard is not expressed as covering prestressed non-pressure concrete pipes. The requirements for cementitious content and cement groupings have been aligned with the prov
15、isions of BS 8500-1:2002 and BRE Special Digest 1 1 insofar as they relate to precast concrete pipeline systems. For an enquiry or order to be fully understood it is essential that the manufacturer be given the information set out in Annex A of this part of BS 5911. Product certification. Users of t
16、his part of BS 5911 are advised to consider the desirability of third party certification of product conformity with this British Standard, based on the conformity attestation arrangements described in BS EN 1916:2002. Users seeking assistance in identifying appropriate conformity assessment bodies
17、or schemes may ask BSI to forward their enquiries to the relevant association. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI Committee B/505, whose constitution is shown in this British Standard, takes
18、collective responsibility for its preparation under the authority of the Standards Committee. The committee wishes to acknowledge the contribution of the following organizations: The Concrete Society; The Institution of Highways and Transportation. Compliance with a British Standard does not of itse
19、lf confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 25 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffi
20、eldun, na, Fri Dec 01 14:37:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5911-5:2004 BSI 1 September 2004 1 1 Scope This part of BS 5911 specifies requirements and describes test methods for prestressed concrete non-pressure circular pipes and fittings with flexible joints (with seals either int
21、egrated in the units or supplied separately) and nominal sizes not exceeding DN 3200, for which the main intended use is the conveyance of sewage, rainwater and surface water under gravity or occasionally at low head of pressure, in pipelines that are generally buried. BS EN 752-2, BS EN 752-3 and B
22、S EN 752-4, BS EN 1295-1 and BS EN 1610 deal with the planning, design, installation and testing of drains and sewers. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated r
23、eferences, the latest edition of the referenced document (including any amendments) applies. BS 146, Specification for blastfurnace cements with strength properties outside the scope of BS EN 197-1. BS 3123, Specification for spring calipers and spring dividers. BS 3892-1, Pulverized-fuel ash Part 1
24、: Specification for pulverized-fuel ash for use with Portland cement. BS 4027, Specification for sulfate-resisting Portland cement. BS 4035, Specification for linear measuring instruments for use on building and civil engineering constructional works Steel measuring tapes, steel bands and retractabl
25、e steel pocket rules. BS 4449, Specification for carbon steel bars for the reinforcement of concrete. BS 4482, Specification for cold reduced steel wire for the reinforcement of concrete. BS 4483, Specification for steel fabric for the reinforcement of concrete. BS 4484-1, Specification for measurin
26、g instruments for constructional works Part 1: Metric graduation and figuring of instruments for linear measurement. BS 5204-1, Specification for straightedges Part 1: Cast iron straightedges (bow-shaped and I-section). BS 5204-2, Specification for straightedges Part 2: Steel or granite straightedge
27、s of rectangular section. BS 5896:1980, Specification for high tensile steel wire and strand for the prestressing of concrete. BS 6699, Specification for ground granulated blastfurnace slag for use with Portland cement. BS EN 197-1, Cement Part 1: Composition, specifications and conformity criteria
28、for common cements. BS EN 206-1:2000, Concrete Part 1: Specification, performance, production and conformity. BS EN 681-1, Elastomeric seals Material requirements for pipe joint seals used in water and drainage applications Part 1: Vulcanized rubber. BS EN 934-2, Admixtures for concrete, mortar and
29、grout Part 2: Concrete admixtures Definitions, requirements, conformity, marking and labelling. BS EN 1008, Mixing water for concrete Specification for sampling, testing and assessing the suitability of water, including water recovered from processes in the concrete industry, as mixing water for con
30、crete. BS EN 1916, Concrete pipes and fittings, unreinforced, steel fibre and reinforced. BS EN 12620:2002, Aggregates for concrete. BS EN 12390-2, Testing hardened concrete Part 2: Making and curing specimens for strength tests. BS EN 12390-3, Testing hardened concrete Part 3: Testing hardened conc
31、rete. Compressive strength of test specimens. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:37:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5911-5:2004 2 BSI 1 September 2004 3 Terms and definitions For the purposes of this part of BS 5911, the terms and definitions given in BS EN 19
32、16 and the following apply. 3.1 cementitious content amount of cement plus any pozzolanic or latent hydraulic addition in the concrete mix 3.2 core pipe pipe that is structurally reinforced with non-tensioned steel, or longitudinally prestressed with pretensioned high tensile steel wire, or a combin
33、ation of both, embedded in the concrete (see Figure 1) 3.3 cover coat layer of cement/fine aggregate mortar applied to the outside of a circumferentially prestressed core pipe (see Figure 1) 3.4 manufacturing diameter diameter of a unit that a manufacturer seeks to achieve Key 1 High tensile steel w
34、ires for longitudinal prestressing, or mild steel reinforcement cage 4 Longitudinal wire anchor 2 Cover coat5 Elastomeric seal 3 High tensile steel wires for circumferential prestressing6 Concrete core Figure 1 Typical section of a prestressed concrete pipe with a spigot and socket joint 2 1 3 4 5 6
35、 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:37:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5911-5:2004 BSI 1 September 2004 3 3.5 prestressed concrete pipe core pipe that is circumferentially prestressed to withstand design loads for the installed condition and is protected by a
36、cover coat NOTEA typical section through a prestressed concrete pipe with spigot and socket joint is shown in Figure 1. 3.6 slurry coat coat of cement and water sprayed over a core pipe and circumferential prestressing wire before application of the cover coat 3.7 splay pipe prestressed concrete pip
37、e formed with either the socket or the spigot off-set at an angle to its longitudinal axis (see Figure 2) a) Typical splay pipe (socket) b) Typical splay pipe (spigot) Key 1 Effective length of splay pipe 2 Nominal angle Figure 2 Typical splay pipes 1 2 2 1 Licensed Copy: sheffieldun sheffieldun, na
38、, Fri Dec 01 14:37:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5911-5:2004 4 BSI 1 September 2004 4 Symbols The meanings of symbols used in this part of BS 5911 shall be as given in Table 1, together with those in BS EN 1916:2002, Table 2. Table 1 Symbols 5 General requirements NOTEThe numbers
39、in parentheses after subclause headings are the corresponding subclause numbers in BS EN 1916:2002. 5.1 Application Except where otherwise prescribed, the requirements of this part of BS 5911 shall be in addition to those specified in BS EN 1916 for reinforced concrete pipes and, for the purposes of
40、 the latter, the reference specifications shall be those listed in Annex B of this standard. 5.2 Prestressing wire Wire for prestressing a core pipe shall be cold-drawn high tensile steel wire, straightened and stress relieved, conforming to BS 5896:1980, Section Two and Annex C of this standard. 5.
41、3 Concrete (4.2) 5.3.1 Types of cement The cement (see BS EN 1916:2002, 4.1) shall either: a) be factory-produced by the cement manufacturer and conform to one of the following standards as appropriate: b) consist of a combination of cement conforming to CEM I as specified in BS EN 197-1 and an addi
42、tion in the form of ground granulated blastfurnace slag (ggbs) or pulverized-fuel ash (pfa) in the proportions specified in 5.3.2.1, to be included as part of the concrete mix by simultaneously combining them with the other concrete materials at the concrete mixer. In all cases where combinations of
43、 cement conforming to CEM I as specified in BS EN 197-1 and ggbs or pfa are used, the relevant proportion of ggbs or pfa shall be fully documented in the production records. 5.3.2 Cementitious content (4.2.4) 5.3.2.1 Core pipe The fully compacted concrete shall have a minimum cementitious content of
44、 not less than the relevant amount shown in Table 2. The composition/specification of cement groups shall be as shown in Table 3. 5.3.2.2 Slurry coat The slurry coat shall consist of one part by mass of water mixed with 1.5 to 1.6 parts by mass of Portland cement. 5.3.2.3 Cover coat The cover coat m
45、ortar shall consist of one part by mass of Portland cement mixed with not more than three parts by mass of fine aggregate conforming to BS EN 12620 designation 0/4 (CP), category GF85 and have a water/cement ratio not greater than 0.35. SymbolMeaningUnitReference DwNominal diameter of prestressing w
46、iremmC.3.2 and C.3.3 hsHeight of studs on straightness gaugemmE.3.2.1 lInternal barrel length minus 0.1 m mE.3.2.1 Type of cementStandard CEM IBS EN 197-1 CEM II/B-VBS EN 197-1 BIII/BBS 146 sulfate-resisting PortlandBS 4027; or Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:37:00 GMT+00:0
47、0 2006, Uncontrolled Copy, (c) BSI BS 5911-5:2004 BSI 1 September 2004 5 5.3.2.4 Cement compatibility Cement conforming to BS 4027 shall not be used with any other cement within the same unit. 5.3.3 Chloride content (4.2.5) The calculated chloride ion content of the concrete, mortar or slurry mixes
48、shall not exceed 0.1 % by mass of their respective cementitious contents. Table 2 Cementitious contenta ClassbAggregate carbonate rangec Cement or combination groupMinimum cement or combination content kg/m3 Maximum w/c ratio DC-2A,B,C1,2,33400.45 DC-3A2a4000.40 A2b, 33800.45 B, C2, 33400.45 DC-3*B2
49、, 33800.45 DC-3* *C2, 33800.45 DC-4A2a4000.35 A2b, 34000.40 A2, 33800.33 B, C2, 33800.45 B, C2, 33600.40 DC-4*B2, 33800.33 B2, 34000.40 DC-4* *C2, 33800.33 C2, 34000.40 DC-4mA2b, 33800.33 A2b, 34000.40 B34000.40 B, C33600.40 B, C33800.45 DC-4m*B33800.33 DC-4m* * C33800.33 C34000.40 a The table is consistent with the provisions of BS 8500-1:2002 and BRE Special Digest 1 1 insofar as they relate to precast concrete pipeline system