Title:
ROAD PAVEMENT SLAB USING MILL SLAG AS RAW MATERIAL
Document Type and Number:
Japanese Patent JP2001323403
Kind Code:
A
Abstract:
To provide a road pavement slab using mill slag as a part of raw material, solving the problems such as insufficient strength, occurrence of cracks, expansion due to free MgO, pH rising of contact water.
This road pavement is formed by mixing with water a mixture containing granular hot metal preliminary treated slag as mill slag and blast furnace slag fine powder as SiO2-containing material, whose percentage of a content of hot metal preliminary treated slag having a particle diameter of 1.18 mm or less is 15 to 55 mass %, and whose percentage of a content of blast furnace slag fine powder is 5 to 40 mass %. The pH of the contact water is 10 or less after contact.
Inventors:
NAKAGAWA MAKIKO
TAKAGI MASATO
KOGIKU FUMIO
MATSUNAGA HISAHIRO
KUMAGAI MASATO
TAKAGI MASATO
KOGIKU FUMIO
MATSUNAGA HISAHIRO
KUMAGAI MASATO
Application Number:
JP2000142921A
Publication Date:
November 22, 2001
Filing Date:
May 16, 2000
Export Citation:
Assignee:
KAWASAKI STEEL CO
International Classes:
B09B3/00; C04B28/22; C21B3/04; E01C5/22; (IPC1-7): E01C5/22; B09B3/00; C04B28/22; C21B3/04
Attorney, Agent or Firm:
Yoshio Kosugi (1 person outside)
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