Company Filing History:
Years Active: 1996
Title: Kazuya Nakatsu: Innovator in Low Heat Cements
Introduction
Kazuya Nakatsu is a notable inventor based in Fukuoka, Japan. He has made significant contributions to the field of construction materials, particularly in the development of low heat cements. His innovative work is crucial for massive concrete works, where managing heat of hydration is essential.
Latest Patents
Kazuya Nakatsu holds 1 patent for his invention titled "Compositions for Low Heat Cements." This patent focuses on compositions specifically designed for large-scale concrete applications. The invention exhibits a compressive strength/heat of hydration ratio of at least 7.0 at the age of 13 weeks. One of the key aspects of his invention involves a powder prepared by mixing CaO, SiO₂, and Al₂O₃ materials, melting the mixture, quenching the melt, and grinding the quenched matter. The resulting powder is primarily composed of amorphous substances, with a CaO/SiO₂ molar ratio of 0.8-1.5 and an Al₂O₃ content of no more than 10 wt. %. The second aspect of his invention provides a mixed powder comprising no less than 70 wt. % of the aforementioned powder and no more than 30 wt. % of an addition, such as Portland cement. This mixed powder maintains the predominance of amorphous substances and the same CaO/SiO₂ molar ratio, with an Al₂O₃ content of less than 12 wt. %.
Career Highlights
Kazuya Nakatsu is associated with Nihon Cement Co., Ltd., where he continues to innovate in the field of cement technology. His work has been instrumental in advancing the properties of construction materials, making them more efficient and effective for large-scale projects.
Collaborations
He has collaborated with notable colleagues, including Takaharu Goto and Toru Higaki, to further enhance the development of innovative cement compositions.
Conclusion
Kazuya Nakatsu's contributions to low heat cements represent a significant advancement in construction technology. His innovative approaches are vital for improving the performance of concrete in massive works, ensuring durability and efficiency.
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