Title:
ADMIXTURE FOR HYDRAULIC COMPOSITION AND HYDRAULIC COMPOSITION
Document Type and Number:
Japanese Patent JP2023182466
Kind Code:
A
Abstract:
To provide an admixture for a hydraulic composition useful for fixing carbon dioxide gas and capable of obtaining a hardened body with suppressed drying shrinkage strain, and to provide the hydraulic composition which includes the admixture for the hydraulic composition and which can obtain the hardened body with a high amount of carbon dioxide gas fixation and suppressed drying shrinkage strain.SOLUTION: An admixture for a hydraulic composition comprises a modified concrete powder which has a 50% particle size of 50 μm or less and is a reaction product of a recycled concrete powder and carbon dioxide gas, the modified concrete powder containing calcium carbonate and a silicate. The hydraulic composition comprising the admixture therefor is also provided.SELECTED DRAWING: None
Inventors:
KOJIMA MASAO
NISHIOKA YUKIKO
KATAMURA SHOGO
MATSUSHITA TETSURO
IKEO YOSAKU
KAWAJIRI SATOSHI
KONO TAKAO
YANAGIBASHI KUNIO
FUJITA TAKAHITO
SUGIMOTO MINAMI
TAKEUCHI YUTO
NARA TOMOYUKI
KAGEYAMA YUKI
NISHIOKA YUKIKO
KATAMURA SHOGO
MATSUSHITA TETSURO
IKEO YOSAKU
KAWAJIRI SATOSHI
KONO TAKAO
YANAGIBASHI KUNIO
FUJITA TAKAHITO
SUGIMOTO MINAMI
TAKEUCHI YUTO
NARA TOMOYUKI
KAGEYAMA YUKI
Application Number:
JP2022096087A
Publication Date:
December 26, 2023
Filing Date:
June 14, 2022
Export Citation:
Assignee:
TAKENAKA KOMUTEN CO
International Classes:
C04B18/16; C04B22/14; C04B28/02
Attorney, Agent or Firm:
Patent Attorney Corporation Taiyo International Patent Office