Anna Krapf-Huber

Title: Innovator Anna Krapf-Huber: Pioneering Advancements in Cement Technology

Introduction

Anna Krapf-Huber, a prominent inventor based in Uitikon-Waldegg, Switzerland, has made significant contributions to the field of concrete technology. With a total of two patents to her name, she has showcased her innovative spirit and expertise in developing advanced materials for the construction industry.

Latest Patents

Among her notable inventions, Anna's latest patents revolve around multipurpose cement dispersing polymers designed for high flow and high strength concrete. These new polymers serve multiple functions; they act as cement dispersing agents while providing set-accelerating properties and reducing shrinkage. Furthermore, they exhibit anticorrosive characteristics towards steel. The polymers are classified as ester and amide group-modified acrylic polymers. They are synthesized via polymer analogous esterification of polyacrylic acid combined with monofunctional polyalkyleneglycol-monalkylether and tertiary alkanolamine, and optionally through amidation with amino-polyalkyleneglycol alkylether.

Additionally, Anna has developed a dispersing agent specifically intended for high-flow or self-compacting concrete. This agent comprises a water-soluble N-vinyl copolymer, which is synthesized through the copolymerization of an N-vinyl-lactame or -amide with polyethylene glycol ester of maleic acid. This innovative approach results in an admixture that yields high fluidity, minimal decrease in flowability over time, and prevents segregation in freshly prepared concrete, even with extremely low water-to-cement ratios.

Career Highlights

Anna Krapf-Huber is currently associated with Sika AG, formerly known as Kaspar Winkler & Co., a leading company in specialty chemicals for construction. Her work has had a lasting impact on improving concrete formulations, making it easier for builders and engineers to create durable and effective structures.

Collaborations

Throughout her career, Anna has collaborated with esteemed colleagues, including Ueli Sulser and Jürg Widmer. These partnerships have furthered the development of innovative solutions in the realm of concrete technology.

Conclusion

Anna Krapf-Huber stands out as a visionary inventor whose work in cement technology not only enhances the performance of construction materials but also contributes to sustainable building practices. Her patents reflect her dedication to innovation and her commitment to advancing the industry. As a key figure at Sika AG, Anna continues to play an essential role in shaping the future of concrete technology.