Title:
LIGHTWEIGHT CONCRETE FLOOR SLAB WITH EXPANSION MATERIAL, AND CONCRETE CASTING METHOD
Document Type and Number:
Japanese Patent JP2021070996
Kind Code:
A
Abstract:
To provide a lightweight concrete floor slab with expansion material and the like capable of improving durability and weight reduction at low cost.SOLUTION: A road structure 3 includes a floor slab 31 and a pavement layer 35. The floor slab 31 is formed of concrete. The concrete is lightweight concrete with expansion material that contains expansion material added to the light-weight aggregate and cement. The amount of expansion material is 0.75 times or more and 1.1 times or less of the standard mixture amount, and the water binder ratio of concrete is 30% by weight or more and less than 38% by weight.SELECTED DRAWING: Figure 1
Inventors:
TAJIMA HITOSHI
UCHIUMI KAZUHITO
KISHI TOSHIJI
IWAKI ICHIRO
HIGUCHI YUJI
MAEDA TAKUMI
ITO SHINYA
IGARASHI KAZUMA
KISHIDA MASAHIKO
UCHIUMI KAZUHITO
KISHI TOSHIJI
IWAKI ICHIRO
HIGUCHI YUJI
MAEDA TAKUMI
ITO SHINYA
IGARASHI KAZUMA
KISHIDA MASAHIKO
Application Number:
JP2019198898A
Publication Date:
May 06, 2021
Filing Date:
October 31, 2019
Export Citation:
Assignee:
METROPOLITAN EXPRESSWAY CO LTD
UNIV TOKYO
UNIV NIHON
PACIFIC CONSULTANTS CO LTD
DENKA CO LTD
FUTABA KK
UNIV TOKYO
UNIV NIHON
PACIFIC CONSULTANTS CO LTD
DENKA CO LTD
FUTABA KK
International Classes:
E01C7/14; C04B14/02; C04B22/06; C04B22/14; C04B28/02; E01D19/12
Attorney, Agent or Firm:
Seiichi Inoue