The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2025
Filed:
Oct. 23, 2020
The University of Tokyo, Tokyo, JP;
Just.will Co., Ltd., Fukuoka, JP;
Beeinventor Limited, Taipei, TW;
E-fuji Company Ltd., New Taipei, TW;
Takafumi Noguchi, Tokyo, JP;
Bochao Sun, Tokyo, JP;
Masahiro Hayasaki, Fukuoka, JP;
Shigeyuki Nishijima, Fukuoka, JP;
Hideyuki Yamamoto, Fukuoka, JP;
Abstract
Provided is an effective material age estimation device capable of appropriately taking relative humidity variation into consideration when estimating an effective material age. This effective material age estimation device comprises a temperature term calculation unitfor calculating a temperature term γdependent on the temperature of cast concrete, a humidity term calculation unitfor calculating a humidity term γdependent on the relative humidity of the concrete, and an effective material age calculation unitfor calculating the effective material age of the concrete by summing products of the temperature term γ, the humidity term, and a step time term Δt. The humidity term γis introduced, and the sum of the products is weighted using the term.