AS 4139:2003 Fibre-reinforced concrete pipes and fittings
11.2 Hydrostatic testing
Where required by the purchaser, pipes and joints shall withstand a test pressure of 250 kPa for 30 s or, alternatively, 90 kPa for 1 min plus 30 s for every 10 mm of wall thickness when tested in accordance with Appendix L. The number of specimens to be tested shall be specified by the purchaser. For the purpose of testing elastomeric joints, in accordance with Clause 8, the test pressure shall be 90 kPa.
11.3 Water absorption test
Pipes shall be tested for water absorption in accordance with Appendix K. The water absorption (A) of the test specimen shall not vary from the manufacturer’s stated value by more than ±0.1A.
NOTE: The manufacturer should clearly state the water absorption value for the product in the product literature and any additional limits on the buried environment that may occur as a result of this stated value and the reinforcement materials used in the pipe (see Appendix B).
11.4 Flexural strength test
When tested in accordance with Appendix I, the nominal flexural strength of pipes of sizes DN 100 and DN 150, expressed as the minimum bending load at failure, shall be not less than the appropriate value given in Table 4.
NOTE: The flexural strength test is a performance test that relates to the ability of the pipe to withstand axial flexure in-service. The loads given in Table 4 do not represent the maximum service loads that could occur in service and apply to pipe lengths 3.6 m and longer.
13.2 Lifting holes
Where lifting holes are provided, they shall be cast with a tapered hole in the top centre of mass of the pipe, as per dimensions given in Table 5. The larger dimension in each case shall be perpendicular to the longitudinal axis of the pipe. The hole shall be positioned so that the pipe can be lifted without tilt or radial twisting.
A plug of concrete, or other suitable material, shall be provided to fit each hole.