BS 5911-101:1988

Foreword
Committees responsible
Specification
Section one. General
1 Scope
2 Definitions
3 Marking
Section two. Materials
4 Cement
5 Aggregates and sand
6 Other concrete materials
7 Concrete mix, casting and finish
8 Glass rovings
Section three. Dimensions and tolerances
9 Nominal size and effective length
10 Internal manufacturing diameter and actual diameter
11 External manufacturing diameter
12 Variation in the thickness of wall
13 Squareness of ends
14 Deviation from straightness
15 Surface cracking
16 Joints
17 Bends
18 Junctions
Section four. Tests
19 General
20 Test requirements
Section five. Inspection procedures
21 Type of inspection and batch size
22 Inspection procedures for pipes
23 Inspection procedures for bends and junctions
Appendices
A Information to be supplied in an enquiry and order
B Methods of assessing surface regularity
C Methods for determining roving count and loss on
    ignition for rovings of alkali-resistant glass fibre
D Method of assessment of deviation from straightness
E Crushing strength test methods for pipes
F Method of test for water absorption
G Hydrostatic test method
H Bending moment resistance (BMR) test methods
J Accelerated ageing test methods
K Methods of testing pipe joints for angular
    deflection, straight draw and shear
L Facilities for purchasers
Tables
1 Limits and frequency of testing for glass rovings
2 Nominal sizes and tolerances for units
3 Minimum effective lengths and nominal angles for
    bends
4 Right-angled junctions
5 Oblique-angled junctions
6 Summary of test requirements and inspection
    procedures
7 Crushing test loads
8 Bending moment resistance (BMR)
9 Minimum angular deflection and straight draw for
    joints
10 Maximum number of individual defectives in last 10
    batches permitted for switching to reduced
    inspection (hydrostatic and works proof load
    crushing test)
11 Inspection plans for hydrostatic and works proof
    load crushing tests
Figures
1 Effective length of pipes
2 Typical flexible joint
3 Typical bends
4 Typical junctions
5 Joint test measurements
6 Gauge for assessing surface evenness
7 Gauge for assessing surface voids
8 Gauge for measuring deviation from straightness
9 Testing arrangements for the crushing test
10 Dimensions of feeler gauge for inspecting cracks in
    units
11 Diagrammatic arrangement of the four-point loading
    test method
12 Wooden bearing block for the three-point loading
    test method
13 Diagrammatic arrangement of the three-point loading
    test method
14 Loading arrangement for shear test on joints

Materials, dimensions, testing and inspection procedures for cylindrical pipes, bends and junctions made from spun precast concrete strengthened by rovings of alkali-restraint glass fibre, and for use in sewerage or drainage.