BS EN 642:1995
Current
The latest, up-to-date edition.
Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirement for prestressing steel for pipes
Hardcopy , PDF
English
07-12-2004
Committees responsible
National foreword
Foreword
0. Introduction
1. Scope
2. Materials
3. Design and fabrication of pipe
3.1 General requirements
3.1.1 General
3.1.2 Wall thickness
3.2 Design of pipes
3.2.1 General
3.2.2 Design requirements
3.3 Reinforcement
3.4 Concrete and mortar
3.4.1 Mix design
3.4.2 Concrete strength
3.5 Prestressing
3.5.1 Longitudinal prestressing
3.5.2 Circumferential prestressing
3.5.3 Multiple layers
3.6 Curing
4. Factory testing
4.1 Concrete test
4.2 Hydrostatic test
4.2.1 General
4.2.2 Cylinder pipe
4.2.3 Non-cylinder pipe
4.2.4 Test pressure
4.3 Permeability test on coating
4.3.1 Test purpose
4.3.2 Test frequency on products
4.3.3 Testing equipment
4.3.4 Test method
4.3.5 Test results
4.3.6 Test acceptance criteria
Annex A (normative) Specific technical requirements for high
tensile steel wire used for prestressing
concrete pipe with or without steel cylinder
Annex B (informative) Typical joints
Annex C (informative) Design guidance for prestressed concrete
cylinder pipes
Annex D (informative) Design guidance for prestressed concrete
non-cylinder pipes
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