Title:
FINE AGGREGATE FOR CONCRETE, AND SELECTING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2018145056
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fine aggregate which may improve flowability of concrete.SOLUTION: A fine aggregate for concrete of this invention comprises: 100 mass% of a 5 mm sieve-passing material; 85-96 mass% of a 2.5 mm sieve-passing material; 52-74 mass% of a 1.2 mm sieve-passing material; 38-58 mass% of a 0.6 mm sieve-passing material; 20-32 mass% of a 0.3 mm sieve-passing material; and 7-15 mass% of a 0.15 mm sieve-passing material. It is also preferable that the fine aggregate comprises: 92-99 mass% of a 3.8 mm sieve-passing material; 70-85 mass% of a 1.9 mm sieve-passing material; 50-62 mass% of a 0.9 mm sieve-passing material; 30-44 mass% of a 0.45 mm sieve-passing material; and 14-23 mass% of a 0.23 mm sieve-passing material.SELECTED DRAWING: Figure 4
Inventors:
ONO TAKASHI
ITO TOMOAKI
SASAKI AKIRA
ITO TOMOAKI
SASAKI AKIRA
Application Number:
JP2017042344A
Publication Date:
September 20, 2018
Filing Date:
March 07, 2017
Export Citation:
Assignee:
UBE INDUSTRIES
International Classes:
C04B20/00; C04B14/02; C04B28/02; G01N33/38
Attorney, Agent or Firm:
Showa International Patent Office