About Us – Twintec Kalman USA

Twintec USA is proud to announce that it has acquired Kalman Floor Company. Julien Lazzari, Twintec Group CEO, stated that synergising the core competences and knowledge in design & construction excellence of both companies will provide an outstanding total offer concept for the USA market.

The combined strengths of Twintec & Kalman will provide:

  • Personalized solutions to meet customers’ specific concrete floor slab needs due to extensive expertise in steel fiber technology and shrinkage compensating concrete.
  • Unrivalled knowledge and experience in sustainable design, material behavior and working methodologies.
  • Skilled, experienced operation team of 50 workers with potential to work on multiple projects simultaneously across the USA.
  • Cutting edge concrete floor laying equipment for precision and high productivity.
  • Specialized services for repairs and upgrading existing concrete floor slabs.

Please come and visit us: www.twintecusa.com


“Twintec USA is confident that the acquisition of Kalman will support its ambitious growth plans in North America and is committed to continue to add value for existing and new customers. Key personnel from Kalman will remain as part of the new Twintec USA team, further strengthening the local Twintec workforce and with an extended fleet of concrete flooring laying equipment that will enable multiple projects to be constructed simultaneously across the USA. With this acquisition, Twintec USA is now able to offer in-house design and self-perform the building of steel fiber reinforced concrete industrial floors and shrinkage compensating concrete, including the well-known toppings for which Kalman is renowned.”   M. Loisel, CEO Twintec USA


“The combination of Twintec’s advanced engineering and excellence in steel fiber design and construction with Kalman’s expertise as leading technologists and builders of shrinkage compensating concrete slabs and strong reputation for service and support will be a great benefit to existing and new clients. Clients will continue to enjoy joint-free systems, extremely durable wearing surfaces, with the additional benefit of structural changes to slab composition, low life cycle cost, and increased user satisfaction”. C. Ytterberg, Executive Vice President, Twintec USA


Background of Kalman

How it all began…

In 1916, Kalman was founded in St. Paul, Minnesota by Paul J. Kalman on the basis of a patented ¾” dense, durable, non-dusting industrial concrete topping process called absorption process. In 1923, Kalman was incorporated in Delaware and relocated its offices to Chicago, Illinois. Ten years later, C. Frederick Ytterberg (grandfather of Kalman’s current president) became president of the company when Paul J. Kalman resigned and the offices relocated to New York City.

During Frederick’s tenure as president, Kalman obtained the registered trademark for Absorption Process® concrete floor topping and began installing steel bar as armor in construction joints, two highly effective processes that are still used in today’s Kalman floors. The company began installing Kalman Seamless Concrete® floors in 1964 and has installed more than 70 million square feet to date.

In 1964, Robert F. Ytterberg succeeded his father as president of Kalman. C. Frederick Ytterberg took Kalman to Europe, Australia, and South America until his retirement in 1978. Later, Kalman relocated its headquarters to beautiful Denver, Colorado where it remains today.

As president of Kalman, Robert took the company to a whole new level, installing the largest post-tension floor slab in the world in 1985 (see Case Studies), developing the Kalman can test for measuring field expansion, using welded bar armor as joint filler, column wrapping with concrete wash in the web (a practice subsequently adopted by ACI 223), and developing the Kalman SC® material used to produce long-wearing Kalman Seamless Concrete® floors. In 1987, Robert F. Ytterberg received the prestigious ACI Wasson Medal for his three-part paper entitled, “Shrinkage & Curling of Slabs on Grade”.

Continuing the family tradition, Carl N. Ytterberg took over the business from his father Robert in 1996 and focused the company’s efforts on installing trouble-free Kalman Seamless Concrete®. One year later, Kalman began installing slip sheets beneath slabs on ground and on insulation (a practice adopted by ACI 223). In 2000, the company began using the patented Kalman V-Joint® to support joint filler and three years later introduced the patented Kalman Tension-Ring™ (see Our Products), both proving to be successful processes that increased the durability of industrial floors while reducing construction and maintenance costs for the owners.

Kalman has successfully maintained its history of excellence through three generations and looks forward to another 90 years of successful service for the warehousing and distribution industries.