Title:
粒状材の判断方法、路盤材用粒状材の製造方法および路盤材の製造方法
Document Type and Number:
Japanese Patent JP6954323
Kind Code:
B2
Abstract:
To provide a method for determining granular material which makes it possible to easily determine whether the corrected CBR required for the roadbed material is satisfied or not.SOLUTION: There is provided a method for determining granular material which determines whether the corrected CBR required for the roadbed material is satisfied or not, the method grasping in advance a correlation formula and a standard deviation of the content percentage of a predetermined particle size having correlation relation with a corrected CBR value and said corrected CBR; calculating the estimated value of the corrected CBR of the granular material using the correlation formula with the standard deviation of 45% or less; determining that the granular material is the granular material satisfying the corrected CBR when the estimated value exceeds the reference value of the corrected CBR required for the roadbed material; and determining that the granular material is the granular material not satisfying the corrected CBR when the estimated value is below the reference value of the corrected CBR required for the roadbed material.SELECTED DRAWING: Figure 1
Inventors:
Ken Hoshino
Application Number:
JP2019046884A
Publication Date:
October 27, 2021
Filing Date:
March 14, 2019
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
E01C3/00
Domestic Patent References:
| JP2009062754A | ||||
| JP2004150147A | ||||
| JP2017082505A | ||||
| JP2017066827A | ||||
| JP2018024568A | ||||
| JP7242452A |
Foreign References:
| US20030154884 |
Attorney, Agent or Firm:
Isomura Tetsuro
Akira Kumasaka
Tetsuya Sakai
Kazuhiro Mori
Akira Kumasaka
Tetsuya Sakai
Kazuhiro Mori