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Concrete In Australia : September 2009
Concrete Pipe Association of Australasia Locked bag 2011 St Leonards NSW 1590 Ph: +61 2 9903 7780 Fax: +61 2 9437 9478 Concrete Pipe Association of Australasia Email: email@example.com Web: www.concpipe.asn.au In the current economic climate asset owners, asset managers, engineers and contractors are all facing budgetery challenges. Balancing cost restraints with appropriate choice of materials for infrastructure is very difficult but extrenely important. If cost becomes the major focus, then stakeholders can lose sight of project life, ser viceability expectations, and the overall objective of the infrastructure. Taking a risk in the design and installation of infrastructure because of cost issues is fraught with danger. Any failure is unacceptable and can affect the health, safety and well being of the community. More often than not these failures can be avoided by choosing the right materials to be used under the correct design criteria, and installed using the appropriate methods. This is vitally important for underground structures such as drainage pipe. To avoid these risks designers and specifiers should not lose focus on the important crietria that a pipeline should exhibit. Structural strength, robustness and long term durability provide security to the community that any pipeline is found in. Steel reinforced concrete pipe has been produced in Australia since the early 1900's and has proven itself over and over again that it should be the pipe material of choice to ensure security. How? Let's take a look at the reasons - STRENGTH • The inherent nature of concrete is that it is strong. • Concrete pipe exhibits compressive strengths up to and greater than 60 MPa • Concrete pipe can be designed for any site conditions • The structural strength of the pipeline is delivered to site (i.e the pipe is the strength) • Concrete pipe does not rely on the soil surrounding it for it’s strength like other materials • Steel reinforced concrete pipe has a proven 100 year design life in Australasia ROBUSTNESS • Concrete pipes are tough and can survive mis-handling during transportation, on site, during installation and after placement . • The robust nature of concrete pipes means the joints can withstand shear action during placement. DURABILITY • Concrete pipes are made using raw materials in accordance to Australian and New Zealand Standards, ensuring manufacturers make quality pipes. • Concrete pipes can be tailored for use if neccessary in aggressive conditions. • AS/NZS4058 outlines the specifc requirements manufacturers must meet at achieve durable pipe. • In accordance with AS/NZS4058 “Precast Concrete Pipes”, steel reinforced concrete pipes can be designed for 100 years in accordance with the performance based standard. Why is this so important? A number of recent pipeline failures, locally and around the world, have occurred due to materials being chosen for conditions they were not appropriate for, or had not been designed and/or installed in accordance within their specifc guidelines. Circumstances like food and fre should not be considered unforseen as design for infrastructure should be in accordance with the worst case scenario. Steel reinforced concrete pipe has the ability to meet the most difficult conditions. So why choose anything else? The objective shold be to manufacture, design and install a pipeline system that will last 100 years. Reinforced concrete pipe relieves the risk on ALL stormwater drainage projects without compromise because of it's STRENGTH, ROBUSTNESS and DURABILITY. CONCRETE PIPE -- WHY CHOOSE ANYTHING ELSE? Strong concrete pipe -- able to withstand all loads Left: Robust concrete pipe -- no on site handling problems Right: Durable concrete pipe -- exhumed in excellent condition after 50yrs