Concrete flooring panels speed up construction

Echo-Prestress-Strelitzia-apartment-complexFor Balwin Properties, developer of the 24-block Strelitzia apartment complex in Greenstone, Johannesburg, using the Echo hollow-core prestressed concrete flooring panel system  enabled the completion of this huge project six months earlier than would have been the case had a conventional flooring construction method been employed.

The prestressed panels provided the logical solution to the architectural design and the logistical challenges presented by the large site and the magnitude of the project. “In fact, Echo Prestress was the only solution,” says Balwin director Ulrich Gschnaidtner.


Strelitzia comprises 376 two-bedroom apartments in four-storey buildings and the extensive residential complex includes a clubhouse and gym.

A total of 22 900m² of 120mm and 150mm prestressed slabs were used to construct the first, second and third floors as well as walkways and balconies. The top floor has a conventional roof. Construction time was slashed: the conventional slab method would have required a forest of back-propping at each level, delaying finishes and slowing completion of the project, but with the prestressed concrete panel system, no props were required and finishes could continue unhindered at lower levels.

The chosen construction method also easily accommodated architectural features such as corner windows by using a nominal size load-bearing steel corner mullion.

building systems fast track construction floor slabs flooring flooring construction flooring panels hollow-core prestressed concrete flooring prestressed concrete flooring panels
Previous story
keyboard_arrow_upRolling out Cape Town’s BRT network
keyboard_arrow_downRolling out Cape Town’s BRT network

The first phase of Cape Town’s new Bus Rapid Transport (BRT) system provides extensive links from the inner city to Paarden Eiland and Bloubergstrand with stops at strategic points such as the new Cape Town Stadium and Century City. By 2018, after the completion of all seven phases of the project, the BRT network will extend all over the peninsula, including Atlantis.

Next story
keyboard_arrow_upEngineered wooden floors for the future
keyboard_arrow_downEngineered wooden floors for the future

The Suntups family has been in the timber industry for three generations and Steven Suntup has been in the solid wooden flooring industry for 21 years.

keyboard_arrow_upUse glass blocks to add light and colour to your interiors
keyboard_arrow_downUse glass blocks to add light and colour to your interiors

Add light and shape to your interiors with glass blocks from Glass Brick Warehouse. There is an infinite number of designs to realise highly diverse and personalised ambiences with effects like striking identifying marks, symbols, and geometries that determine the flow and direction of light. Glass blocks or bricks are architectural products that allow light […]

keyboard_arrow_upPerfect Pedestrian Ramp, Silicon Oasis, Dubai!
keyboard_arrow_downPerfect Pedestrian Ramp, Silicon Oasis, Dubai!

Retaining walls can do so much more than just stop soil erosion and flooding issues. Along with other hardscaping and landscaping, retaining walls can transform your grounds by providing depth and verticality to your landscape, providing raised platforms for gardens, terraced views of your property, and beautiful concrete block textures. This building site, located at […]

keyboard_arrow_upEnergy efficient Agrivaal building earns 4 star Green Rating
keyboard_arrow_downEnergy efficient Agrivaal building earns 4 star Green Rating

The new energy efficient Agrivaal building in Pretoria’s Tshwane Central Business District is using advanced natural ventilation and smoke control solutions from SE Controls Africa to maintain a comfortable indoor environment while improving safety by ensuring escape routes are smoke free in the event of a fire.