Cemex develops special concrete mix for Polish project

Cemex in Poland helped build the Jordanki Cultural and Congress Centre in the green ring of the medieval town of Torun, a Unesco World Heritage Site.

Cemex supplied over 30,000 cubic meters of concrete for this project, designed by the Spanish architect Fernando Menis.2

To blend with the historic character of Torun’s gothic architecture, the Jordanki Centre was made of partially immersed raw brick and concrete.

This mix of crushed brick and concrete—known as “Pikado”—was used to fill the half inch spaces between the bricks, providing an unusual visual effect.

Based on the architect’s model, Cemex’s laboratory also developed a special architectural concrete containing aggregates that matched the specific texture and colour required by Menis for the façade, walls, polished floors, and sidewalk surfaces of the building.

As the new home of the Torun Symphony Orchestra, the Jordanki Center has a rehearsal room for which Cemex developed a concrete with special diffusers for the spread of sound.

Cemex delivered a single-pieceCEMEX’ 1 casting of walls – 32 foothigh, from 16 to 20 foot wide, and 3 to 4 inchesthick —with impressions of boards and diffusers.

“The Jordanki Cultural and Congress Centre is a prestigious project for us,” said Slawomir Dobrowolski, director of mobile concrete plant division for Cemex in Poland.

“We were the only ones to successfully pass the tests performed before the project’s implementation. During deliveries, we developed a lot of concrete mix applications that were both interesting and demanding. The most spectacular one was “Pikado,” which was a challenging but positive lesson for us,” Dobrowolski, said.

“Collaboration with our customers is our priority. As exemplified by this project, we analyze the best possible solutions with our customer in th3e areas of technology or logistics that benefit both parties, so they produce additional projects for us to work on together in the future.”

Cemex’s cement and ready mix technology centres are part of the R&D collaboration network, headed by Cemex Research Group, based in Switzerland.

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