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Concrete

Strong composite building material made from the combination of aggregate and cement binder.

This page lists aggregate suppliers and concrete block manufacturers for use in a wide range of building projects.

Concrete is a durable and long-lasting material, regularly reinforced with steel bars or ‘rebars’. Prestressed concrete is reinforced with prestressing tendons of tensioned steel rod or cable to increase its tensile strength. Precast concrete, e.g. concrete blocks and masonry units are moulded and cured offsite, then transported to the project.

Concrete admixtures and additives help overcome common pitfalls in the material. Chemical cement admixtures improve water resistance, appearance, or durability. Concrete accelerators or retarders speed up or slow hardening, whilst concrete plasticisers improve workability. Mineral admixtures such as fly ash, lime or silica fume may also improve quality. Recycled materials used in aggregate help improve the green credentials of the material.

Suppliers and manufacturers of cement, cement admixtures, concrete blocks and aggregate can all be found here.

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Kilworth Springs Golf Course
HMS have completed a number of surface installations at one of Leicestershire's premier golf courses, Kilworth Springs. This has included an area of specially designed HMS Flexi®Paving; a por...
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The Madison, London E14 (Ferbox)
As a trusted supplier to Morrisroe, Invisible Connections provided a reinforcement continuity strip solution for this 53 storey superstructure. At early stage construction, we were called upon to p...
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Southbank Place, London SE1 (Ferbox)
Invisible Connections were already engaged with Southbank Place (supplying telescopic connectors), when Expanded Structures invited us to assist with a complex reinforcement continuity strip design...
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Leadenhall Building, London (TSS 41)
The iconic Leadenhall Building gains its structural robustness from the steel lattice frame, visible on the outside. The internal concrete walls do not need to act as the stiff core, but still requ...
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Skanska Bentley Works, Doncaster (BSF)
To help Skanska meet their ambitious timescale for the ‘Deep Green’ redevelopment of 5,000 sqm of workshops and offices, Invisible Connections were engaged to provide engineering advice regarding p...
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Usher Hall, Edinburgh (TSS 101)
The 100 year old Usher Hall was renovated and extended to provide facilities including a curved foyer and refreshment area on the side of the circular building. The curved extension meant supporti...
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London 2012 Olympic and Paralympic Athletes’ Village (DTS 150)
DTS stair connectors were developed as a direct result of our role in the construction of the Athletes’ Village, London 2012. We were asked to produce an alternative to the large stainless steel...
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City College, Glasgow (RVK 101)
City Campus comprises a 7 storey block, an 11 storey spine tower, and a 4 storey wing. A steelwork frame carries precast concrete floor slabs. Robustness anchorage is provided by reinforced in situ...
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250 City Road, London EC1 (Ferbox)
Laing O’Rourke’s Expanded division was awarded the £40m concrete package for substructure and superstructure. Invisible Connections provided a bespoke solution for a challenging continuity strip de...
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Aggregate Industries dives in at the deep end of £15m revamp of Centre Parcs Sherwood Forest
Aggregate Industries’ innovative and highly-durable Watertight concrete mix proved the winning formula during the ongoing renovation of Center Parcs’ indoor water park at Sherwood Forest.
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