More than a floor …

The Echo Prestress hollow-core slab system is a flooring solution offering simpler, faster construction and a durable end product.  

The versatility and multi-purpose functionality of Echo prestressed hollow-core slabs is sometimes overlooked, however. Echo hollow-core  slabs are not only suitable for floors but other applications too, such as security walls, reservoir roofs, retaining walls and warehouse walling, multi-storey floor applications to residential, commercial and industrial buildings, as well as suspended ground floor slabs in clay areas and a foundation system for social housing.

The foundation system for social housing
The Concrete Manufacturers Association is the Agrément Certificate holder for the hollow-core foundation system. Echo Prestress has been issued with the licence for the system. The certificate covers the Echo building foundation beams for use in all areas of South Africa in non-standard foundation systems of the type referred to in the Certificate, and on sites with founding conditions classified as Class C or H. The beams are to be used in foundations supporting single storey buildings of maximum plan size 6.6 x 6.2m with the foundation beam length in the 6.2m direction.

Security walls
Echo hollow-core security walls are designed for high end security requirements. Each job is designed to suit specific requirements and can be used vertically or horizontally.

Reservoir roofs
Echo prestress slabs can also be used in the construction of reservoir roofs.

Retaining walls
Vertical application
Echo Prestress retaining walls are commonly used instead of in-situ walls. Time and cost saving are a major advantage in addition to high quality and concrete strength. Each retaining wall is specifically designed to suit the project requirements. The foundation requirements also differ from project to project. It is best to consult Echo Prestress at the early design stage. Make use of their advice and design input – it comes at no charge and is guaranteed to result in an overall cost saving.

Horizontal application
The retaining slabs are installed into the flanges of steel or concrete columns. The retaining walls of this particular structure – a potato storage facility – were designed to withstand very high horizontal forces from within the building.

All Echo Prestress news
keyboard_arrow_upEcho Prestress celebrates 21 years of prestressed slab production
keyboard_arrow_downEcho Prestress celebrates 21 years of prestressed slab production

One of South Africa’s prestressed hollow-core concrete slab pioneers, Echo Prestress, was founded in 1995 when a factory was built in Kempton Park to manufacture prestressed hollow-core slabs. 

keyboard_arrow_upEcho slabs used as gravity retaining walling at medical facility
keyboard_arrow_downEcho slabs used as gravity retaining walling at medical facility

South Africa’s Echo group has had considerable success in finding and developing new markets for hollow-core, especially in security and retaining wall applications. This article outlines an innovative form of retaining wall which was jointly developed by an Echo engineer in collaboration with an external engineering consultancy.

keyboard_arrow_upNew concept in retaining wall systems
keyboard_arrow_downNew concept in retaining wall systems

This innovative form of retaining wall was jointly developed by an Echo engineer in collaboration with an external engineering consultancy.

keyboard_arrow_upEcho slabs secure Waterfall Estate
keyboard_arrow_downEcho slabs secure Waterfall Estate

South Africa’s Echo group has had considerable success in finding and developing new markets for hollow-core, especially in security and retaining wall applications. As South Africa has one of the world’s highest crime levels, good security walling has become an unfortunate necessity.

keyboard_arrow_upHollow-core extends its footprint
keyboard_arrow_downHollow-core extends its footprint

Increasing numbers of South African architects and structural engineers, many of whom were slow to adopt hollow-core technology, are now using it as a means to safe-guard quality, accelerate construction time and save costs. 

keyboard_arrow_upEcho prestressed hollow-core retaining walling
keyboard_arrow_downEcho prestressed hollow-core retaining walling

A retaining wall is a structure designed and constructed to resist lateral soil pressure when the desired change in ground elevation exceeds the soil’s angle of repose.

keyboard_arrow_upInnovative thinking generates new retaining wall concept
keyboard_arrow_downInnovative thinking generates new retaining wall concept

Hollow-core slab producer, the Echo Group, has introduced a new concept in retaining wall systems, Echo Gravity Retaining Walling (EGRW), which utilises precast concrete hollow-core slabs in combination with geotextile membrane. 

keyboard_arrow_upImpregnable Echo Wall guards metal plant
keyboard_arrow_downImpregnable Echo Wall guards metal plant

One of South Africa’s largest steel manufacturers has ringed its Wadeville raw scrap processing plant with a formidable security wall made from toughened Echo prestressed hollow-core concrete panels – and in the process completely eliminated costly losses from scrap theft.

keyboard_arrow_upMore than a floor …
keyboard_arrow_downMore than a floor …

The Echo Prestress hollow-core slab system is a flooring solution offering simpler, faster construction and a durable end product.  

keyboard_arrow_upEcho Floors – hollow-core floor slab pioneer
keyboard_arrow_downEcho Floors – hollow-core floor slab pioneer

Echo Floors, a member of the Echo Group, has been manufacturing reinforced hollow-core concrete floor slabs for almost 30 years.

keyboard_arrow_upEcho Prestress: Quality underwritten by ISO and SABS marks
keyboard_arrow_downEcho Prestress: Quality underwritten by ISO and SABS marks

Echo slip-formed prestressed slabs are effectively purpose-made, manufactured to a standard 1200m width, which can be cut to non-standard widths as architectural design may prescribe

keyboard_arrow_upSuspended concrete floor slabs: Strelitzia townhouses – Greenstone, Johannesburg
keyboard_arrow_downSuspended concrete floor slabs: Strelitzia townhouses – Greenstone, Johannesburg

Hollow-core prestressed concrete flooring slabs provided the logical construction solution to the design challenges of this 24-block complex comprising 376 apartments. The use of Echo Prestress concrete flooring panels enabled the developers to complete the project much earlier than would have been possible had a conventional flooring construction method been employed.

keyboard_arrow_upConcrete panels score at Soccer City
keyboard_arrow_downConcrete panels score at Soccer City

Johannesburg's Soccer City, one of the most spectacularly beautiful buildings to rise from the 2010 World Cup stadium construction boom, was

keyboard_arrow_upCase studies confirm benefits of hollow-core floor slabs
keyboard_arrow_downCase studies confirm benefits of hollow-core floor slabs

The case studies recently conducted to compare the costs of pre-cast hollow-core concrete flooring systems against cast in-situ concrete floor slabs in