The network of Brick-lined sewers, built in the late 1800’s has served the population of London for over 150 years. The original sewer system and network were designed when London had a population of less than 3 million. This doubled by 1900, and stood at about 9 million in 2020. The Victorians made the sewers…
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Foamed Concrete Planes, Trains and Automobiles
Creating and improving infrastructure, using foamed concrete to make light work. Strengthening weak bridges and filling embankments. Filling voids before excavation and even large networks of roads and encapsulation of utilities. Foamed concrete in its many forms is present. Especially, in ground work, construction and demolition. Propump design, supply and manufacture specialist foamed concretes in…
James Henry Geathead
Filling tunnels on the London Underground As Propump prepare to pump more specialist foamed concrete into a network of passageways in London’s Underground during engineering hours in this iconic part of London in front of the Royal exchange., is a statue of James Henry Greathead (1844 – 1896), Inventor of the “traveling shield” (1869). The…
Annulus and headings
Annulus fills Foamed concrete has a great number of potential uses. The fluid nature of this Foamed cement / grout combination allows it to be pumped much easier and at considerably less pressure than conventional concrete mixes. This allows a sufficiently fluid foamed concrete with no large aggregate to fully encapsulate utilities. It is also…
St Albans emergency foamed concrete and ground stabilisation
Sink holes and ground stabilisation Sinkholes and Dean-holes tend to be a more common occurrence when the weather turns and there is a larger volume of rainfall. Caused by poor drainage, leaking pipes and ground water, Sinkholes require a medium of stabilization urgently to prevent more damage to services or property. The recent occurrence of…
Finsbury Park shaft
London Underground Back in 1863 The Metropolitan Railway opens the world’s first underground railway, between Paddington and Farringdon Street. It was opened to the public on 10 January 1863 with gas-lit wooden carriages hauled by steam locomotives, the world’s first passenger-carrying designated underground railway. The line was soon extended from both ends, and northwards via…
Foamed concrete equipment pt.1
The equipment we use on a daily basis to manufacture foamed concrete Foamed concrete is produced by adding Foam to a fluid, “grout like” base material. A given amount of foam is added to a given amount of Base material for a given mix, thus producing Foamed Concrete. The tricky part is knowing exactly how…
New applications for foamed concrete
New and novel uses for foamed concrete Mines, Tunnels, basements, vaults, cellars, pipes, sink holes, decommissioning work, ground stabilisation, new builds, roads and decks are but some of the many applications Foamed Concrete is used for on a daily basis. Using expertise gained over the last 29 years Propump are always on the lookout for…
Foamed concrete slabs and screeds
Using foam concrete for light weight, floors, slabs and screeds Propump engineering have designed and tested many mixes that allow various densities of foamed concrete to be produced with relative ease from any ready mix batching plant. These mixes are formulated to provide characteristics such as good pump ability, flow and strength. The addition of…
