Title:
舗装用コンクリート組成物、および舗装用コンクリート硬化体
Document Type and Number:
Japanese Patent JP6875096
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a concrete composition for pavement or the like, which is excellent in workability, development of initial strength, suppression of initial crack, and durability, and high in material separation resistance during construction.SOLUTION: The present invention provides a concrete composition for pavement, which at least includes binder comprising the following constituent of (A) to (D), coarse aggregate, fine aggregate, water, and water-reducing agent, with water-binder ratio of 10 to 37%. The constituent includes: (A) a pozzolanic fine powder that has a BET specific surface area of 15 to 25 m/g of 0.5 to 27.5 mass %; (B) fly ash that has a Blaine ratio surface area of 2500 to 10000 cm/g of 1.0 to 45.0 mass %; (C) anhydrous gypsum that has a Blaine ratio surface area of 3000 to 12000 cm/g of 0.5 to 20.0 mass %; and (D) portland cement or conventional ecological cement of 50.0 to 90.0 mass % (where, the sum of percentage content of (A) to (D) is 100 mass %).SELECTED DRAWING: None
Inventors:
Masao Ishida
Mai Iguchi
Mai Iguchi
Application Number:
JP2016204027A
Publication Date:
May 19, 2021
Filing Date:
October 18, 2016
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
C04B28/04; C04B7/28; C04B18/08; C04B18/14; C04B22/14; C04B24/26; E01C7/14
Domestic Patent References:
| JP2016050130A | ||||
| JP2015151318A | ||||
| JP2011043008A | ||||
| JP2012184598A |
Attorney, Agent or Firm:
Norihiko Arai
Naoyuki Koda
Naoyuki Koda