Hakuhodo DY has patented a cement-free concrete composition for construction, utilizing calcium sulfate hemihydrate, polypropylene fiber, sand, retarders, and superplasticizers. The method excludes traditional curing methods. GlobalData’s report on Hakuhodo DY gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Hakuhodo DY, Dynamic premium pricing was a key innovation area identified from patents. Hakuhodo DY's grant share as of February 2024 was 38%. Grant share is based on the ratio of number of grants to total number of patents.
Cement-free concrete composition for construction with specific ingredients
A recently granted patent (Publication Number: US11873251B1) discloses a unique concrete composition designed for construction purposes. The composition includes specific ingredients such as calcium sulfate hemihydrate (CSH), polypropylene (PP) fiber, sand, a retarder, and a superplasticizer in precise quantities to achieve desired properties. These properties include a compressive strength of at least 50 N/mm2, a flexural strength of at least 15 N/mm2, an initial setting time between 45 to 60 minutes, a fire rating of Class A1 or better, a thermal conductivity of 0.25 W/m·K or less, a range of early strengths, a range of setting times, and being free from shrinkage cracks. The composition is also cement-free and includes water to maintain a flowable consistency within a workable range.
Moreover, the patent also outlines a method for using this concrete composition in construction activities. The method involves adding the composition to water in a mixer, blending it for specific durations, and producing a concrete mix with a workable consistency. The method ensures that the initial and final setting times of the concrete correspond to specific hardness ratings and properties, and the mix is air-cured for a defined period. Importantly, the method excludes steam curing, accelerated curing, and water curing techniques, emphasizing the unique air-curing process. Overall, the patent provides a detailed guide for utilizing this innovative concrete composition in construction projects, highlighting its specific ingredients, quantities, and methods to achieve optimal results.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
