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reasons why concrete pipeline systemsare the best option now and for the future
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Cost and Affordability
• Concrete pipes provide installed cost savings asthey can be laid without using a full granular beddingand surround.
• With concrete products, material prices tend to bestable, unlike drainage products made ofthermoplastics, which can be affected bysurges in oil prices.
• Concrete pipes have a specified and provenservice life of over 100 years, so keepingmaintenance and asset replacement costs toa minimum.
Click Herefor helpful cost
calculators
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Rapid production & installation• Concrete pipes do not always require a full granular surround,saving time in bedding and compaction.
• Installation is easy and well understood by contractors and theprocess often uses machinery already available on site.
• Manufacturers are renowned for their excellent designsupport and customer focus.
• Suppliers maintain good stocks of standard products to ensureprompt delivery to site.
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Resistance to damage and corrosion• Strong and robust. They are not prone to damage during storage,handling, installation or use.
• No special protection measures are required
• Do not deform or lose shape over their service life
• Do not lose strength or resistance over time.
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information
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Inherent Strength
• Less susceptible than flexible systems to inadequate bedding and poorinstallation.
• Concrete pipes and manholes are designed to high strength Classesand offer the most inherently strong option in the market.
• Concrete pipes are the overwhelmingly preferred optionwhere traffic is expected to run over the pipeline.
• For installations with deeper cover depths where greater stresses areimposed on the pipes, concrete systems are the most suitable choice.
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High, consistent standards
• In 2002, concrete drainage components became oneof the first construction products to be manufacturedto a complete and consistent family of European andBritish standards.
• These standards ensure thatproducts are made to meet thehighest requirements. Theyinclude rigorous producttesting on each requirement atevery stage of manufacture.
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Resistance to jetting• According to WRc’s Sewer Jetting Code of Practice, concretepipeline systems currently withstand a maximum water jettingpressure of 5,000 psi (345 bar).
• Compare this with 2,600 psi (180 bar) maximum for plasticpipeline systems according to the same code and no morethan 1745 psi (120 bar) for plastic pipes according toEuropean standards.
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Resistance to sulphate attack
• Concrete pipes and manholes are resistant to sulphate andchemical attack.
• Concrete pipeline products with higher design chemical classes ofDC3 and DC4 are capable of withstanding attack from the vast majorityof aggressive ground environments in the UK.
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Stability
• Concrete drainage products offer betterresistance to uplift or flotation than othermaterials, particularly during floods
• Concrete pipes are designed with flexiblejoints so they can take up movements in theground. The self-weight and superior stabilityof concrete pipeline products offer advantagesduring installation and in service.
• Maintenance and refurbishment activities canbe carried out after years of installationwithout concern over the system's stability.
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Sustainability• Concrete pipeline systems are by far the most sustainableoption available.
• Responsibly sourced materials, available locally
• Products themselves can also be recycled at the end of their lifetime
• Reduce off-site disposal and the need for imported bedding materials.
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sustainable drainage
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Design Flexibility• Wide choice of standard sizes and cross-sectional shapes and the ability tomanufacture bespoke solutions.
• Concrete pipeline products are used for anumber of purposes, including sewerage,drainage, attenuation and storage.
• Elliptical (ovoid) and egg-shaped pipesections may be used where there arelimitations to pipe gradient, or cover depth
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Customisation & adaptability in use• Concrete drainage products can be easilycustomised, for example by cut-outs or theincorporation of other drainage productcomponents.
• Products can be readily adapted in situ toaccommodate a wide range of situations whilstmaintaining structural integrity.
• A variety of pipe bends and junctions can be produced across the fullrange of sizes.
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A track record of long service life• Concrete pipeline systems offer an asset service life exceeding 100 years
• There are a number of case studies where concrete pipes laid over 100years ago were salvaged and tested successfully to current standards.
• Products do not deteriorate with age, as concrete gets stronger as itgets older.
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• A rigid concrete pipe will not deform at thejoint so the integrity of the seal will not becompromised through loss of shape.
• Tested to pressure levels equivalent to a 5metre head of water.
• Modern concrete pipeline systems areavailable with integrated seals. The sealingring is cast into the socket and is also usedfor connections to manholes.
Water tightness & joint integrity
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Inertness• Concrete drainage products are inert, sodo not leach harmful chemicals into theenvironment throughout their long servicelife. This is an essential property for anymaterial used in a substructure that hasdirect contact with groundwater.
• It also means that it is a safe option forhandling drainageand storm wastewater without causingcontamination.
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Hydraulic efficiency• The hydraulic efficiency of concrete pipeline products is not affected byage. Unlike flexible pipes, concrete pipes do not deform.
• This hydraulic efficiency can be maintained with high pressurewater jetting without risk of damage.
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hydraulic efficiency
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• Concrete pipes are available with integrally cast lifting anchors andspecially designed chains for safe and easy transporting, laying and jointing.
• All CPSA members regularly submit safety statistics to BritishPrecast. The precast concrete sector collectively reduced accidents by65% in the 7 years to 2008.
High Health & Safety standards
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Resistance to high temperatures & fire• Concrete pipeline systems have excellent fire and high temperatureresistance.
• Concrete products do not lose their structure or deform when exposed toheat, unlike many thermoplastic pipeline products.
• Wastewater can be transported through concrete pipes and manholes attemperatures reaching well over 80°C when fitted with appropriate sealsystems specifically designed for such high temperatures.
• Concrete products will not burn and will not release harmful emissionsand fumes during fires, unlike many plastic products.
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Innovative solutions• The use of modern durable seals ensureswater tightness and the integrity andstrength of joints.
• One example of innovation is a manholesystem that can be installed without theneed for a separate concrete surroundor the construction of an in-situ base.
• Other innovations include the concretePipe Lifter and a range of precast concreteSuDS components. Concrete pipelifter video
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• The strength and structure of a concretepipeline comes mainly from the pipe itself and isachieved in a controlled factory environment.
• Quality management systems at all factories arecovered and regularly assessed by the BritishStandards Institute.
• Manufacturing tolerances are set to very tightlevels.
Off-site manufacture
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Flood Resilience• As climate patterns change, concrete pipeline systems offer aviable solution to the increased challenge of flooding.
•A wide range of attenuation and water storage solutions is available.
• Concrete drainage products are resistant to uplift or flotation.
• Also resistant to damage from the hard objects carried with flood water.
• In areas with high traffic loading and deep cover depths, the inherentstrength of concrete drainage products can offer important advantagesover other SuDS solutions.
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Information brought to you by the CPSA
The CPSA (Concrete pipeline systemsassociation) are dedicated to bringingyou up-to-date information regarding
concrete products.
For more information please visit
www.concretepipes.co.uk