Precast concrete manhole PERFECT

After an extensive research programme, Marshalls CPM introduced the 1200 Perfect Manhole system in October 2009 to meet the challenges of modern day construction. Today, it is available in 1200mm, 1500mm and 1800mm diameters and comprises of a monolithic precast concrete base (available pre-benched in any configuration within just days of requisition), a sealed chamber ring (with a thicker wall than a standard ring), a rubber joint (so no tokstrip of similar product is required) and a sealed cover slab which is supplied with your required access. This unique system of products combines to form the Marshalls CPM Perfect Manhole system; designed and manufactured to last a minimum of 120 years that provides a sealed manhole system that gives up to 40% savings on greenhouse gases compared to traditional manhole construction and eliminates the need of ready mixed concrete to form the traditional base, chamber benching and further concrete to surround the manhole. A complete manhole can be installed in as little as 30 minutes, making safe site practice a real winner when using the Perfect Manhole as it reduces the need to work in confined spaces and eliminates the need for wet trades resulting in rapid construction compared to traditional methods as well as a reduction in the time the excavation is open. The Perfect Manhole complies with BSEN 1917:2002 and BS5911-3 and has been accepted for use by all major UK companies. Advantages of the Perfect Manhole System Safer construction – No requirement to work in confined spaces. No requirement to form a concrete surround. Reduction of open excavation.