Karla Tower

Tallest Building in Scandinavia

Karla-Tower

The Karla Tower is currently being built in Gothenburg, Sweden. It is going to be the tallest skyscraper in Scandinavia and the high-rise building is to be finished in two years. The 245 m high building offers space for 594 apartments and hotels. The construction is based on 58 piles with 2m diameter, anchored about 60 meters down through mud and rocks. The tallest building in Scandinavia is definitely a challenge in itself.

Karla-Tower

“Maturix provides us with insights we otherwise would not have gained – the flexibility of the application and the user-friendly usage convinced us.”

Magnus Eckert
Magnus EckertProduction Manager
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Challenges

The concrete structure is planned to top out at the beginning of 2022 – good time management and thought-through processes are needed to succeed in the project and meet the deadline in this strict schedule.

Time is a valuable source, especially on extensive projects where several companies, contractors collaborate together to build the 73-floor high skyscraper in Sweden’s second largest city, optimal adjustments and continuous coordination are key.

Obviously, the most used material in the whole skyscraper is going to be concrete, the concrete structure consists of bored piles, raft slab, core (incl. elevators, stairs), columns, two outrigger levels, and slabs. However, estimating the current concrete curing is a challenge as the process is highly influenced by external influences such as weather, wind, and humidity. But knowing the exact current strength of the floor is essential to work efficiently without losing valuable redundant waiting time.
Thus, every opportunity to save time is valuable and smart solutions to optimize the workflow are embraced. 

Key Challenges

“Nothing in this project is traditional. Everywhere we push the boundaries!”

Magnus Eckert
Magnus EckertProduction Manager
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Solution

The Maturix In-situ solution provides Serneke with an end-to-end tool for concrete strength monitoring.
By using thermocouples that are cast directly in the structure and connected to a transmitter, the temperature inside the concrete is measured continuously. The data is sent wirelessly to the cloud platform. The software automatically calculates maturity and strength based on the history data and the concrete mix and the strength development process can be followed. The data is accessible from any device via the web portal or app and provides Serneke with real-time insights into the actual curing status inside the structure in several positions for each cast.

Thus, Magnus Eckert, project manager of Serneke, always knows exactly how the concrete is curing and if he has to adjust his project management on-site according to data. With the smart solution, he has access to the data from anywhere using Maturix.

Key Benefits

Results​

By using Maturix Serneke, on the one hand, ensured that the required strength has been reached while on the other hand, the tough time management for the tallest building in Scandinavia is eased. Getting insights into the curing status turns into the basis for decisions and proactive attitude while keeping the overview and having an automatically digitalized solution for temperature monitoring at hand.

Key Results

“We are really happy with Maturix. Compared to other maturity meters that we used before, Maturix is handier! You just take the cable, plug it in the device and you’re good to go. Especially in construction, we have a lot to do – and we’re always in a rush. But you just start casting and start the monitoring in the from the smartphone – really easy!”

	 Viktor Hjelmgren
Viktor HjelmgrenConstruction Supervisor Serneke
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Karla Tower uses Maturix
Karla Tower uses Maturix

“With the insight in real-time, we feel confident to remove the formwork on time without unnecessary additional waiting time.  It definitely supports us also to keep the overview on this extensive site and helps us to meet the deadlines!”

Magnus Eckert
Magnus EckertProduction Manager
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Karla Tower​

About Karla Tower​

Gothenburg will have its first real skyscraper which also will become the tallest building in Scandinavia. The building will be 245 meters tall and its location at Lindholmen means that its profile will be visible both from the river and the city center. Ola Serneke, CEO and founder of the Serneke Group, has himself initiated the project.

About Serneke

Serneke is the next generation construction company operating in construction, civil engineering and project development.

The company was founded in 2002 and is already one of Sweden’s largest construction companies. Serneke offers the same assurance and knowledge as market leaders, but with more energy, dedication and a more modern approach.

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