Water and Effluent Treatment Magazine
Issue link: https://fhpublishing.uberflip.com/i/945111
PIPES & DRAINAGE 2018 7 By embracing innovation and modern methods of construc- tion and the industry's demand for fast, efficient, modular systems, Marshalls CPM is well placed at offering precast concrete solutions that can be used to reduce construction time and promote sustainability as well as offering cost savings that are designed, engineered and manufactured off-site under factory conditions at one of their two UK manufac- turing works. For instance, take their Perfect Manhole System, with a 120 year design life, that they introduced into the UK in October 2009 which is packed with benefits that satisfies designers, contrac- tors and operators alike. The use of integrally-cast high performance seals maintain water tightness and an integrity of joints in a system that has proven to decrease installation time dramatically and improve safety of site with no wet trades or confined space working and no requirement to form a concrete surround. Traditional manhole construction has required the base to be formed in-situ with the building of the channel, connections and benching occurring in the trench, oˆen in wet and unpleasant conditions. This process can take around 40 hours per manhole and is not always successful. By contrast, the Perfect Manhole design comprises of a precast concrete monolithic base unit, complete with channel and benching with bespoke combinations of inlet(s) and outlet(s) and a design of chamber ring with watertight, flexible joints and no liˆing holes, removing points of possible leakage. Both base units and chamber rings are made with thicker, stronger walls. The robust design means that the requirement for a concrete surround is eliminated, unless specifically required. The excavation is backfilled sooner and there is less need for men to work in confined spaces. This reduces time spent in the excavation, further improving site safety and reducing installation costs. Installation of the whole system is speedy and efficient, and follow-up opera- tions can start immediately. Contact: Marshalls CPM, Mells Road, Mells, Somerset. BA11 3PD Tel: Louise Chouhan-Hodges 01902 356220 Email: louise.chouhan-hodges@cpm-group.com PIPES & DRAINAGE 2018 The Perfect Manhole System where everything flows…… The Perfect Manhole System .....everything flows! T: 01179 814500 F: 01179 814511 E: perfect@cpm-group.com www.cpm-group.com www.perfect-system.co.uk Concrete for Life Manufactured and tested to BSEN 1917:2002 and BS5911-3:2002 With over 20,000 CPM perfect bases now supplied to the construction industry are you being left behind in manhole assembly? Proven to deliver faster installation with perfect hydraulics, the CPM Perfect Manhole has no requirement for a concrete surround and is available pre-benched within days of requisition or as a plain base. Designed and manufactured from high quality durable concrete with a minimum 120 year design life the Perfect Manhole is the talk of the industry. Perfect Watertight Joint Perfect Base Perfect Hydraulics Build Faster Build Leaner Build Greener Build Quality Build Smarter Build to Last The Perfect Manhole System Delivers up to 40% savings on GHG emissions compared with traditional build. The Perfect Manhole take off tool is available from our website