1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS 7533-6:1999 ICS 93.080
2、.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Pavements constructed with clay, natural stone or concrete pavers Part 6: Code of practice for laying natural stone, precast concrete and clay kerb unitsThis British Standard, having been prepared under the direction of the S
3、ector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 December 1999 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference B/507 Draft for comment 98/108797 DC ISBN 0 580
4、 33066 4 BS 7533-6:1999 Amendments issued since publication Amd. No. Date Comments Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee B/507, Paving units and kerbs, upon which the following bodies were represented: Brick Dev
5、elopment Association British Cement Association British Ceramic Research Ltd. British Precast Concrete Federation Ltd. Cementitious Slag Makers Association County Surveyors Society Department of Transport (Highways Agency) Institution of Civil Engineers Institution of Highways and Transportation Int
6、erlay, the Association of Block Paving Contractors Interpave, the Concrete Block Paving Association Landscape Institute Society of Chemical Industry Stone Federation The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Civil Engineerin
7、g Test Equipment Manufacturers Association Institution of Structural Engineers National Federation of Clay Industries Ltd. National Paving and Kerb AssociationBS 7533-6:1999 BSI 12-1999 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Normative references 1 3 Terms a
8、nd definitions 1 4 Forms of construction 1 5 Construction details 2 6 Reinstatement 2 Annex A (informative) Examples of kerb edge details 3 Bibliography 8 Figure A.1 Example of kerb or channel 3 Figure A.2 Examples of channel units 3 Figure A.3 Example of concrete kerb 4 Figure A.4 Example of natura
9、l stone kerb 4 Figure A.5 Example of kerb and linear drainage 5 Figure A.6 Example of reinforced haunching 5 Figure A.7 Example of edging 6 Figure A.8 Example of bonded kerbs (large units) 6 Figure A.9 Examples of multi-unit traffic calming 6 Figure A.10 Example of combined drainage and kerb 7 Figur
10、e A.11 Example of linear drainage 7ii BSI 12-1999 BS 7533-6:1999 1) In preparation. Foreword This part of BS 7533 has been prepared by Technical Committee B/507. BS 7533 will be published in the following parts: Part 1 1) : Guide for the structural design of heavy duty pavements constructed of clay
11、pavers or precast concrete paving blocks; Part 2 1) : Guide for the structural design of lightly trafficked pavements constructed of clay pavers or precast concrete paving blocks; Part 3: Code of practice for laying precast concrete paving blocks and clay pavers for flexible pavements; Part 4: Code
12、of practice for the construction of pavements of precast concrete flags or natural stone slabs; Part 5 1) : Guide for the design of pavements (other structural aspects); Part 6 1) : Code of practice for laying natural stone, precast concrete and clay kerb units; Part 7 1) : Code of practice for the
13、construction of pavements of natural stone setts; Part 8 1) : Guide for the structural design of lightly trafficked pavements of precast concrete flags and natural stone slabs. BS 7533:1992 will be withdrawn on publication of BS 7533-1 and BS 7533-2. Annex A is informative. As a code of practice, th
14、is British Standard takes the form of guidance and recommendations. It should not be quoted as if it were a specification and particular care should be taken to ensure that claims of compliance are not misleading. A British Standard does not purport to include all the necessary provisions of a contr
15、act. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself 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 8, an inside back cov
16、er and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. BSI 12-1999 1 BS 7533-6:1999 1 Scope This part of BS 7533 gives recommendations for laying natural stone and precast concrete kerbs, channels, edgings and quadrants conforming to BS
17、435 and BS 7263-1, and clay kerbs conforming to BS 6677-1 intended for use in the construction of carriageways and footways. It also applies to combined drainage and kerb products, and linear drainage units. 2 Normative references The following normative documents contain provisions which, through r
18、eference in this text, constitute provisions of this part of this British Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated references, the latest edition of the publication referred to applies. BS 5328-1:1997, Concrete Par
19、t 1: Guide to specifying concrete. BS 6100-2.4.1, Glossary of building and civil engineering terms Part 2: Civil engineering Section 2: Highway, railway and airport engineering Subsection 4.1: Highway engineering. BS 7263-1, Precast concrete flags, kerbs, channels, edgings and quadrants Part 1: Spec
20、ification. 3 Terms and definitions For the purposes of this part of BS 7533, the terms and definitions given in BS 7263-1 and BS 6100-2.4.1 and the following apply. 3.1 joint space between two adjacent units 3.2 roadbase one or more layers of material placed above the sub-base that constitutes a str
21、uctural element of a flexible or composite pavement 3.3 sub-base one or more layers of material placed immediately above the subgrade 3.4 subgrade part of the soil, natural or constructed, that supports the loads transmitted by the overlying pavement 3.5 unit product such as a kerb, channel, edging
22、and quadrant, a combined drainage and kerb product, and a linear drainage product 3.6 kerb race foundation on which the units are laid 3.7 mortar joint joint between two units filled with a sand/cement mixture 3.8 movement joint joint constructed to allow units to expand and contract 4 Forms of cons
23、truction 4.1 Laying units: general Kerbs, channels, edgings and quadrants, combined drainage and kerb products, and linear drainage units should be laid using any of the following methods: a) set on a race of fresh concrete (not applicable to clay units); b) bedded on a mortar race on top of an edge
24、 beam of hardened concrete or onto a mortar bedding on a carriageway base; c) suitably bedded on the surface layer. Units should then be haunched/backed with ST1 concrete conforming to BS 5328-1:1997 or a race of fresh concrete extended to the required height. NOTE See annex A for examples of edge d
25、etails. Units conforming to BS 7263-1 should not be cut to a length of less than 300 mm. However, small units of clay, stone and concrete should not be cut to less than one-third of their original length and in no case less than 50 mm. Where kerbs are subjected to regular heavy traffic, e.g. on appr
26、oaches to traffic calming ramps, kerbs should be cut to a length not exceeding 300 mm. 4.2 Laying units on a kerb race A foundation of ST1 concrete, in accordance with BS 5328-1:1997, Table 13, should be deposited along the line of units, onto which the units are laid directly on fresh mixed concret
27、e and set to line and level. In areas subjected to heavy loading, the backing concrete should either be laid monolithic with a race of fresh concrete, or dowel bars should be firmly fixed in the base and extended into the backing haunching. NOTE Dowel bars may be omitted if the backing is adequately
28、 restrained by adjacent material.2 BSI 12-1999 BS 7533-6:1999 4.3 Laying units on an edge beam or existing carriageway base The concrete edge beam should be a minimum of 150 mm thick and wide enough to accommodate units and backing concrete. NOTE Where lean concrete is used to form the roadbase, it
29、may be preferable to extend the roadbase concrete to act as an edge beam. On an edge beam or carriageway base which has previously been laid and allowed to harden, the units should be bedded down on a layer, 12 mm to 40 mm thick, of 1:3 cement:sand mortar (by volume) and backed up with ST1 concrete.
30、 Mortar that has begun to harden before a unit is laid should not be used. When units are laid on a jointed concrete pavement, there should be a clear joint between the units. The joints should continue through the race and the kerb not more than 150 mm from the jointed concrete pavement. Clay units
31、 should be bedded on a modified mortar, e.g. a mortar with the addition of an appropriate styrene butadiene admixture, and finished with a 10 mm tooled finish joint between units. 4.4 Laying units on the surface layer Units that are laid on the surface layer should be bonded to the wearing surface w
32、ith a suitable synthetic resin compound or with a modified strengthened mortar, used strictly in accordance with the manufacturers recommendations for this specific application. 5 Construction details 5.1 Setting to line and level When laying small straight units to radii the mortar joints may be la
33、id to a taper to accommodate the radius of a curve subject to aesthetic considerations. Otherwise a proprietary tapered unit may be employed. A string line should be accurately set out along the carriageway channel to the required level of the top of the units. Units should then be laid on fresh con
34、crete or mortar bed and adjusted to line and level. Allowances should be made on curves for the string line being in a series of straight lines. The final unit alignment should be checked to ensure that it follows a smooth curve both horizontally and vertically. When concrete units conforming to BS
35、7263-1 are used, radius kerbs and channels should be used on curves of 12 m radius or less. Large units should be aligned so that they are within 10 mm of their design alignment and the differences in level at the top between two adjacent units does not exceed 3 mm. NOTE Some minor visual adjustment
36、 may be necessary when the units are laid, especially on curves and when linking with other edge details. Kerbs should be laid accurately to line and level and should allow for the water check (upstand), which is usually 25 mm above the finished pavement level. Crossing kerbs at vehicular crossings
37、should be laid 25 mm above the final road surface unless otherwise specified. At pedestrian crossing points, dropped kerbs should be laid 6 mm above the channel level at the low side to aid surface water drainage and level with the channel at the high side of the road. To assist wheelchair access th
38、e upstand should be between 0 mm and 6 mm. Using existing units, the joints on the dropper unit kerb may have to be adjusted. Consideration should be given to the removal of surface water at the crossing point by the judicious placing of a drainage outlet. 5.2 Jointing Mortar jointing between units
39、of natural stone and concrete is generally unnecessary; however, the units should not be butt jointed. The minimum gap between them should be 2 mm. When mortar joints are used, the mortar should completely fill the joint; however, clay units should be laid with a 10 mm joint between adjoining units
40、and the mortar joints finished with a tooled profile to ensure a durable surface. Movement joints formed of a 10 mm thick, easily compressible material should be provided through units bases. Where kerbs are mortared, the spacing of these joints should be at maximum 15 m centres for natural stone an
41、d concrete and 6 m for clay units. 6 Reinstatement Reinstatement should follow those methods described in clauses 4 and 5 for the appropriate construction. When resurfacing takes place, the units and backing may require lifting and relaying. If the surface is raised by less than 40 mm, the units may
42、 be rebedded with mortar. If the surface is raised by more than 40 mm, the units should be relaid on a fresh mortar bed placed on a regulating layer of hardened modified or unmodified mortar or concrete, as appropriate for the thickness.BS 7533-6:1999 BSI 12-1999 3 Annex A (informative) Examples of
43、kerb edge details Figures A.1 to A.11 show examples of kerb edge details. Figure A.1 Example of kerb or channel Figure A.2 Examples of channel units4 BSI 12-1999 BS 7533-6:1999 Figure A.3 Example of concrete kerb Figure A.4 Example of natural stone kerb BSI 12-1999 5 BS 7533-6:1999 Figure A.5 Exampl
44、e of kerb and linear drainage Figure A.6 Example of reinforced haunching6 BSI 12-1999 BS 7533-6:1999 Figure A.7 Example of edging Figure A.8 Example of bonded kerbs (large units) Figure A.9 Example of multi-unit traffic calming BSI 12-1999 7 BS 7533-6:1999 Figure A.10 Example of combined drainage an
45、d kerb Figure A.11 Example of linear drainage8 BSI 12-1999 BS 7533-6:1999 Bibliography BS 435:1975, Specification for dressed natural stone kerbs, channels, quadrants and sets. BS 6677-1:1986, Clay and calcium silicate pavers for flexible pavements Part 1: Specification for pavers.blankBS 7533-6:199
46、9 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI
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