D&C B315 Elastomeric Strip Seal Expansion JointsD&C B315 Elastomeric Strip Seal Expansion Joints 2 M...
Transcript of D&C B315 Elastomeric Strip Seal Expansion JointsD&C B315 Elastomeric Strip Seal Expansion Joints 2 M...
Edition 1 / Revision 3 TRANSPORT FOR NSW
June 2020
TRANSPORT FOR NSW (TfNSW)
TfNSW SPECIFICATION D&C B315
ELASTOMERIC STRIP SEAL EXPANSION JOINTS
NOTICE
This document is a Transport for NSW D&C Specification. It has been developed for use with Design
& Construct roadworks and bridgeworks contracts let by Transport for NSW. It is not suitable for any
other purpose and must not be used for any other purpose or in any other context.
Copyright in this document belongs to Transport for NSW.
REVISION REGISTER
Ed/Rev
Number
Clause
Number Description of Revision
Authorised
By Date
Ed 1/Rev 0 First issue GM, IC W Stalder
28.06.11
Ed 1/Rev 1 Updated to accord with changes to base (non-
D&C) Specification B315
GM, IC 12.07.12
Ed 1/Rev 2 Updated to accord with changes to base (non-
D&C) Specification B315
MCQ 27.10.17
Ed 1/Rev 3 Global References to “Roads and Maritime
Services” or “RMS” changed to “Transport
for NSW” or “TfNSW” respectively.
DCS 22.06.20
References to “RMS Representative”
changed to “Principal”.
Edition 1 / Revision 3 TRANSPORT FOR NSW
June 2020
SPECIFICATION D&C B315
ELASTOMERIC STRIP SEAL
EXPANSION JOINTS
Copyright – Transport for NSW
IC-DC-B315
VERSION FOR:
DATE:
Elastomeric Strip Seal Expansion Joints D&C B315
Ed 1 / Rev 3 i
CONTENTS
CLAUSE PAGE
FOREWORD ............................................................................................................................................... II TfNSW Copyright and Use of this Document ............................................................................... ii Base Specification .......................................................................................................................... ii
1 GENERAL ........................................................................................................................................ 1 1.1 Scope .............................................................................................................................. 1 1.2 Structure of the Specification ......................................................................................... 1 1.3 Approved Bridge Components and Systems .................................................................. 1 1.4 Warranty ......................................................................................................................... 1
2 MATERIALS .................................................................................................................................... 2 2.1 Metal Seal Retainers ....................................................................................................... 2 2.2 Elastomer ........................................................................................................................ 2
3 JOINT DESIGN ................................................................................................................................. 3 3.1 General ........................................................................................................................... 3 3.2 Retainers ......................................................................................................................... 3 3.3 Anchorages ..................................................................................................................... 3 3.4 Design Certification ........................................................................................................ 4
4 METAL SEAL RETAINERS ............................................................................................................... 4 4.1 General ........................................................................................................................... 4 4.2 Corrosion Protection ....................................................................................................... 4
5 ELASTOMERIC SEAL ....................................................................................................................... 4
6 INSTALLATION ............................................................................................................................... 5 6.1 General ........................................................................................................................... 5 6.2 Seal Retainers ................................................................................................................. 5 6.3 Seals ................................................................................................................................ 5
ANNEXURES B315/A AND B315/B – (NOT USED).................................................................................... 6
ANNEXURE B315/C – SCHEDULES OF HOLD POINTS AND IDENTIFIED RECORDS .................................... 6 C1 Schedule of Hold Points ................................................................................................. 6 C2 Schedule of Identified Records....................................................................................... 6
ANNEXURE B315/D – PLANNING DOCUMENTS ....................................................................................... 6
ANNEXURES B315/E TO B315/L – (NOT USED) ....................................................................................... 7
ANNEXURE B315/M – REFERENCED DOCUMENTS .................................................................................. 7
LAST PAGE OF THIS DOCUMENT IS ............................................................................................................ 7
D&C B315 Elastomeric Strip Seal Expansion Joints
ii Ed 1 / Rev 3
FOREWORD
TFNSW COPYRIGHT AND USE OF THIS DOCUMENT
Copyright in this document belongs to Transport for NSW.
When this document forms part of a deed
This document should be read with all the documents forming the Project Deed.
When this document does not form part of a deed
This copy is not a controlled document. Observe the Notice that appears on the first page of the copy
controlled by TfNSW. A full copy of the latest version of the document is available on the TfNSW
Internet website: http://www.rms.nsw.gov.au/business-industry/partners-
suppliers/specifications/index.html
BASE SPECIFICATION
This document is based on Specification TfNSW B315 Edition 4 Revision 3.
(TfNSW COPYRIGHT AND USE OF THIS DOCUMENT - Refer to the Foreword after the Table of Contents)
Ed 1 / Rev 3 1
TfNSW SPECIFICATION D&C B315
ELASTOMERIC STRIP SEAL EXPANSION JOINTS
1 GENERAL
1.1 SCOPE
This Specification sets out the requirements for the supply and installation of preformed elastomeric
strip seal expansion joints, including the metal seal retainers and their anchorages.
1.2 STRUCTURE OF THE SPECIFICATION
This Specification includes a series of annexures that detail additional requirements.
1.2.1 Schedules of HOLD POINTS and Identified Records
The schedules in Annexure B315/C list the HOLD POINTS that must be observed. Refer to
Specification TfNSW D&C Q6 for the definition of HOLD POINTS.
The records listed in Annexure B315/C are Identified Records for the purposes of TfNSW D&C Q6
Annexure Q/E.
1.2.2 Planning Documents
The PROJECT QUALITY PLAN must include each of the documents and requirements listed in
Annexure B315/D and must be implemented.
1.2.3 Referenced Documents
Standards, specifications and test methods are referred to in abbreviated form (e.g. AS 1234). For
convenience, the full titles are given in Annexure B315/M.
1.3 APPROVED BRIDGE COMPONENTS AND SYSTEMS
Unless approved otherwise by the Principal, use only TfNSW approved elastomeric strip seal
expansion joints. Details of TfNSW approved bridge proprietary products can be found at:
http://www.rms.nsw.gov.au/business-industry/partners-suppliers/documents/tenders-
contracts/listofapprovedbridgecomponentssystems.pdf
1.4 WARRANTY
The supply of each proprietary strip seal expansion joint must be accompanied with a warranty from
the joint supplier in the name of Transport for NSW on the serviceability of the joint for a minimum
period of five years from the date of installation. Any joint that becomes defective within this period
must be rectified by the supplier.
(TfNSW COPYRIGHT AND USE OF THIS DOCUMENT - Refer to the Foreword after the Table of Contents)
D&C B315 Elastomeric Strip Seal Expansion Joints
2 Ed 1 / Rev 3
2 MATERIALS
2.1 METAL SEAL RETAINERS
The metal seal retainers for the joint must be manufactured from steel or aluminium.
2.2 ELASTOMER
The preformed elastomeric seal for the joint must be made from vulcanized compound having
polymerized chloroprene as the only base polymer.
Obtain documentary evidence to verify that the elastomer used in the manufacture of the seal has been
tested in a laboratory with appropriate NATA registration and that it conforms to Table B315.1.
Table B315.1 – Elastomeric Seal Properties
Property Requirement Test Method
Tensile Strength 13.8 MPa minimum AS 1683.11 (Dumb-bell test pieces)
Elongation at Break 250% minimum AS 1683.11 (Dumb-bell test pieces)
Hardness IRHD 59±5 AS 1683.15.1
Ageing: AS 1683.26 (Method A for 72 hours
at 100C)
Change in Tensile Strength -20% to 0 AS 1683.11 (Dumb-bell test pieces)
Change in Elongation at Break -20% to 0 AS 1683.11 (Dumb-bell test pieces)
Change in Hardness IRHD 0 to +10 AS 1683.15.1
Resistance to Ozone No visible cracking AS 1683.24 (Ozone concentration
100 pphm in air, 20% strain,
100 hrs at 40C)
Low Temperature Stiffening
(Change in Hardness)
IRHD 0 to +15 AS 1683.15.1 (After 7 days at -10C)
Change in Volume in Oil +70% maximum AS 1683.23 (Using Oil No. 3, after
72 hours at 100C)
Compression Set 40% maximum AS 1683.13 (72 hours at 100C)
Low Temperature Brittleness Not Brittle ASTM D 746 (B) (at -30C)
Note: The above testing will not be required provided that:
(a) The elastomer of the seal is supplied by a company which has a third party certified quality
management system to AS/NZS ISO 9001 for the manufacture and supply of elastomer;
(b) Test certificates are supplied to prove that the elastomer meets the properties specified in
Table B315.1 in Type Tests not more than six months old;
(c) Day to day batch quality control on the manufacture of the elastomer is exercised by performing
a test which accurately measures the cure characteristics of the elastomer and highlights
variations resulting from incorrect ingredients or levels thereof; and
(TfNSW COPYRIGHT AND USE OF THIS DOCUMENT - Refer to the Foreword after the Table of Contents)
Elastomeric Strip Seal Expansion Joints D&C B315
Ed 1 / Rev 3 3
(d) The manufacturer establishes control points and limits on batches which have been Type Tested
and uses these control points and limits for subsequent quality control purposes.
3 JOINT DESIGN
3.1 GENERAL
The design of the joint must conform to Clause 7.3 of AS/NZS ISO 9001, AS 5100.4 and this Clause.
Design the elastomeric seal in accordance with AS 5100.4 to accommodate the range of movement
nominated on the Design Documentation drawings.
The width of the seal must be sufficient to ensure that it is not damaged or pulled out of the metal
retainer at the maximum design gap width.
The seal must not be wider than required to accommodate the range of movement nominated on the
Design Documentation drawings to avoid entrapment of debris that will cause the seal to split and fail.
3.2 RETAINERS
(i) Where the tops of the metal seal retainers are at road level, any legs must be at least 12 mm
thick.
(ii) Where retainers are concreted in position, horizontal legs must have air bleed holes of at least
12 mm diameter at not more than 600 mm centres.
(iii) Where any leg of a steel seal retainer is upright, provide welded stiffeners to the leg at not more
than 300 mm spacing.
(iv) Extruded aluminium seal retainers must have sufficient stiffness to not require stiffeners.
3.3 ANCHORAGES
(i) Calculate the forces in the anchorages in accordance with the laws of statics, assuming that the
concrete above the point where the anchorage enters the concrete is ineffective.
(ii) Round bars used as anchorages must be at least 20 mm in diameter.
(iii) Rectangular bars used as anchorages must have a minimum thickness of 12 mm.
(iv) Bars used as anchorages must form a loop of sufficient size to be permit anchoring into the
concrete with the contribution of the transverse and other reinforcement.
(v) The welding of anchorage bars of the metal seal retainer must develop the full strength of the
bar and accommodate an infinite number of fatigue cycles in accordance with AS 5100.4.
(v) Stud welded shear connectors used as anchors must be at least 16 mm diameter and 150 mm in
length and welded to the retainer only by resistance welding using a welding gun. Do not weld
stud shear connectors to aluminium seal retainers.
(TfNSW COPYRIGHT AND USE OF THIS DOCUMENT - Refer to the Foreword after the Table of Contents)
D&C B315 Elastomeric Strip Seal Expansion Joints
4 Ed 1 / Rev 3
3.4 DESIGN CERTIFICATION
Submit details with drawings of the design of the proposed joint and its anchorages and a certificate
from an Engineer eligible for Corporate Membership of Engineers Australia certifying that the design
conforms to AS 5100.4 and this Specification.
HOLD POINT
Process Held: Supply of the strip seal expansion joint.
Submission Details: Details and drawings of the joint design and certificate in accordance with
Clause 3.4 prior to supply of the joint.
Release of Hold Point: The Nominated Authority will consider the submitted details, prior to
authorising the release of the Hold Point.
4 METAL SEAL RETAINERS
4.1 GENERAL
Fabricate steel seal retainers in accordance with Specification TfNSW D&C B201.
Fabricate aluminium seal retainers in accordance with Specification TfNSW D&C B246.
Curve or join the metal seal retainer according to whether the elastomeric seal is curved or joined.
4.2 CORROSION PROTECTION
Steel seal retainers must be hot dipped galvanized in accordance with TfNSW D&C B201 unless
shown otherwise on the Design Documentation drawings.
Paint any aluminium surface which will be in contact with concrete with a non-metallic epoxy coating
and coat any bolts used to anchor the aluminium seal retainer with petroleum jelly before use, unless
shown otherwise on the Design Documentation drawings.
5 ELASTOMERIC SEAL
Each seal must be completely uniform and homogeneous throughout. Reject any seal showing
imperfections, surface splits, or indentations.
The permissible manufacturing tolerances are nil to +2 mm in relaxed width of seal.
Obtain the required longitudinal profile of the seal to match the bridge cross section by bending the
seal to the required angle, or by joining straight lengths of seal by means of an adhesive recommended
by the seal supplier. Join all seal lengths in the factory, except that joining of seals at sharp changes in
profile may be performed in the field.
Obtain a certificate from the supplier of the seal to verify its conformity with the requirements of the
Design Documentation drawings and this Specification.
(TfNSW COPYRIGHT AND USE OF THIS DOCUMENT - Refer to the Foreword after the Table of Contents)
Elastomeric Strip Seal Expansion Joints D&C B315
Ed 1 / Rev 3 5
6 INSTALLATION
6.1 GENERAL
Following installation, the joint must be watertight.
Installation of the joint must not result in a rough ride for passengers in vehicles traversing the joint.
6.2 SEAL RETAINERS
Install the seal retainers so that they are within +0 and -3 mm of the levels shown on the Design
Documentation drawings, and the opening of the joint is within ±2 mm of the opening shown on the
Design Documentation drawings.
Submit the procedures for installation of the seal retainers including how the specified tolerances will
be achieved.
6.3 SEALS
Submit the procedure for the installation of the seal, including field joining and testing of the installed
seal for watertightness.
Do not insert the seal into the retainers until at least three days after all the concreting in adjacent
spans or abutment is finished.
The method of placing the seal must be in accordance with the joint supplier’s instructions.
Insert the seal into the retainers using a lubricant and an insertion tool recommended by the joint
supplier.
The lubricant for inserting the seal must be recommended by the joint supplier and be a compound
compatible with the seal and the retainers and be unaffected by moisture. The lubricant must contain
at least 60% solids and comprise a suitable polymer blended with volatile solvents. It must have the
specified consistency over the temperature range specified for the insertion of the seal.
(TfNSW COPYRIGHT AND USE OF THIS DOCUMENT - Refer to the Foreword after the Table of Contents)
D&C B315 Elastomeric Strip Seal Expansion Joints
6 Ed 1 / Rev 3
ANNEXURES B315/A AND B315/B – (NOT USED)
ANNEXURE B315/C – SCHEDULES OF HOLD POINTS AND
IDENTIFIED RECORDS
Refer to Clause 1.2.1.
C1 SCHEDULE OF HOLD POINTS
Clause Description
3.4 Submission of details and drawings of the joint design and Engineer’s certificate
C2 SCHEDULE OF IDENTIFIED RECORDS
The records listed below are Identified Records for the purposes of TfNSW D&C Q6 Annexure Q/E.
Clause Description of Identified Record
2.2 Documentary evidence that the elastomer complies with the specified requirements
3.4 Details and drawings of proposed joint design, with Engineer's certificate
ANNEXURE B315/D – PLANNING DOCUMENTS
Refer to Clause 1.2.2.
The following documents are a summary of documents that must be included in the PROJECT
QUALITY PLAN. The requirements of this Specification and others included in the deed must be
reviewed to determine additional documentation requirements.
Clause Description
6.2 Procedure for installation of the seal including field jointing and testing of the installed
seal for watertightness
(TfNSW COPYRIGHT AND USE OF THIS DOCUMENT - Refer to the Foreword after the Table of Contents)
Elastomeric Strip Seal Expansion Joints D&C B315
Ed 1 / Rev 3 7
ANNEXURES B315/E TO B315/L – (NOT USED)
ANNEXURE B315/M – REFERENCED DOCUMENTS
Refer to Clause 1.2.3.
TfNSW Specifications
TfNSW D&C Q6 Quality Management System (Type 6)
TfNSW D&C B201 Steelwork for Bridges
TfNSW D&C B246 Manufacture and Supply of Minor Aluminium Items
Australian Standards
AS 1683 Methods of test for elastomersr
AS 1683.11 Method 11: Tension testing of vulcanized or thermoplastic rubber
AS 1683.13 Method 13: Compression set of vulcanized rubber under constant deflection
AS 1683.15.1 Method 15.1: International rubber hardness
AS 1683.23 Method 23: Rubber - Vulcanized – Determination of resistance to liquids
AS 1683.24 Method 24: Determination of the resistance of vulcanized or thermoplastic
rubbers to ozone cracking – Static strain test
AS 1683.26 Method 26: Rubber, vulcanized or thermoplastic - Accelerated ageing and
heat resistance tests
AS 5100.4 Bridge design - Bearings and deck joints
AS/NZS ISO 9001 Quality management systems - Requirements
American Society for Testing Materials Standards
ASTM D 746 Standard Test Method for Brittleness Temperatures of Plastics and Elastomers
by Impact