Istanbul mega-project needs waterproofing to keep the ocean at bay

Vadistanbul is Turkey's largest industrial and urban transformation project. When completed, it will have a shopping mall with hundreds of stores, street shops, office space and a five-star hotel.

The site is located close to the Black Sea, the Sea of Marmara and the Bosphorus. That means a high water table that can be found at a depth of only three meters. That’s why it is essential to completely and reliably waterproof the 22-meter-deep basements.

For the Vadistanbul Boulevard part of the project, the contractor used PREPRUFE® waterproofing solutions. The project required 90,000 m² of the waterproofing membrane to provide superb protection to all built elements, including 3,000 foundation piles, up to levels above the water table.

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Project Profile

Keeping water out of a concert hall's basement

Sonoma State University faced several challenges for waterproofing its new concert call. The Green Music Center sits at ground level, but the hall slopes downward, below grade, toward the stage. In addition, several feet of space needed for the building's air supply extended the depth even farther.

There was also a high water table just a few feet below the surface. The Green Music Center designers chose PREPRUFE® waterproofing membrane to protect the structure and BITUTHENE® waterproofing on the exterior basement walls. As a result, everything stays dry. That’s music to our ears!


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Former BBC headquarters become a spectacular new development

Television Centre was the headquarters of BBC Television until 2013. The site under went redevelopment to include apartments, offices, restaurants and retail buildings.

Since there was a varying water table, the project called for specific requirements to prevent water migration. The site also contains a complex maze of inverted bends and horizontal paths. Access comes in from a mix of residential, commercial and retail buildings. That required a complete matrix of fabricated movement joints.

The contractors chose PREPRUFE® and ADPRUFE® waterproofing solutions as well as SERVISEAL® waterstop to protect the expansion joints in the concrete. In total, approximately 19,000 m² of PREPRUFE® and 6,000 m³ of watertight concrete enhanced with ADPRUFE® were used on the site.

INTEGRITANK® waterproofing protects prominent waterside development

St. George Wharf in Vauxhall and Riverside West in Wandsworth are prestigious developments of modern trend-setting apartments, shops, cafes, restaurants and other leisure facilities. The developments also incorporate underground parking garages with concrete podium deck roofs, which have been subsequently landscaped to form a communal courtyard.

The architects for both projects set out to find a robust and effective waterproofing system that could be specified for the protection of the podium decks, not only for the decks themselves but also to combat water ingress and leakage that could damage the valuable cars parked below.

The decision was taken to specify INTEGRITANK® for these projects. A key deciding factor was the simplified sealing and installation of the INTEGRITANK® system in critical areas, such as service entries and gully outlets. The INTEGRITANK® waterproofing system, with unique ESSELAC® advanced resin technology, is ideal for waterproofing underground structures in both internal and external applications.

Using the system resulted in significant time savings. The areas where INTEGRITANK® waterproofing was applied could accept vehicular and foot traffic within one hour, unlike other systems that would have to be kept clear for up to seven days and required additional protective layers before trafficking.

Aesthetic finish for multi-story parking garage

In March 2016, the Wolverhampton Civic Centre, UK, underwent an £18 million refit, which saw the introduction of modern and innovative designs, as well as an upgrade to the existing four-level basement parking garage

The work was carried out in phases to tie in with the wider refurbishment plans. The client also wanted to make sure the new parking garage had a brighter, fresher and more modern appearance with an aesthetically pleasing protective finish.

The DECSEAL® wearing course system was specified based on its ease of application. The system can be applied to seven-day-old concrete, enabling the application to begin as much as three weeks earlier than other systems. In addition, the system allows for an unlimited over-coating time, eliminates adhesion issues at day joints and provides for easy detailing.

In addition, DECSEAL® wearing course is cold applied, so it requires no hot trades and no hot work permits. The Bauxite aggregates also offer exceptional wear and skid resistance, making the surface safer for car park visitors.

The DECSEAL® wearing course provided a choice of six standard colors, with bespoke colors available, offering the designers the ability to create a fresh look. With a speedy, problem-free application, the new parking garage opened on time.

Repair & Renovation Projects

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Learn how we help engineers and contractors around the world build better, stronger, sustainable commercial buildings. We offer innovative, sustainable concrete structural solutions to help engineers and contractors around the world build better, stronger, sustainable commercial buildings.

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