Title:
CONCRETE PUMPING PIPE
Document Type and Number:
WIPO Patent Application WO/2022/219672
Kind Code:
A1
Abstract:
Provided is a concrete pumping pipe that does not comprise a metal pipe, wherein: the concrete pumping pipe includes a cylindrical body made of resin; the coefficient of kinetic friction on the inner surface of the cylindrical body is 0.07-0.30; the cylindrical body does not rupture or leak in a hydraulic-pressure resistance test of 25MPa; and the total light transmittance in a 2mm thick test piece of the cylindrical body is at least 10%.
Inventors:
SATO KOICHIRO (JP)
KASUMI KEIJI (JP)
KASUMI KEIJI (JP)
Application Number:
PCT/JP2021/015143
Publication Date:
October 20, 2022
Filing Date:
April 12, 2021
Export Citation:
Assignee:
ASAHI KASEI ADVANCE CORP (JP)
International Classes:
E04G21/04; F16L9/127
Domestic Patent References:
| WO2019151449A1 | 2019-08-08 |
Foreign References:
| JP2017519851A | 2017-07-20 | |||
| JP2003277549A | 2003-10-02 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Download PDF:
Previous Patent: DATA EXTRACTION DEVICE, DATA EXTRACTION METHOD, AND DATA TRANSMISSION PROGRAM
Next Patent: CONTROL DEVICE, CONTROL METHOD, AND PROGRAM
Next Patent: CONTROL DEVICE, CONTROL METHOD, AND PROGRAM