Surface modification slag material - KABUSHIKI KAISHA KOBE SEIKO SHO

Title:

Surface modification slag material

Document Type and Number:

Japanese Patent JP5995240

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a slag material capable of sufficiently inhibiting alkali elution from slag materials including iron and steel slag, and capable of being used as a marine environment restoration material.SOLUTION: A surface-modified slag material 1 includes a calcium carbonate layer 2 formed on the surface of a slag material 3 including iron and steel slag, wherein the surface of the slag material 3 is surely coated with calcium carbonate (CaCO) layer 2 by utilizing Ca originated from f-CaO or Ca(OH)or the like contained in the iron and steel slag and COin atmosphere, where the calcium carbonate layer 2 covers the surface of the slag material 3 with thickness of 1-100 μm and the porosity is 10% or less with respect to the volume of the calcium carbonate layer 2.

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Inventors:

Wataru Urushihara
Kazumi Yanagisawa
Akihiko Tatsumi
Yoichi Funaoka
Ryohei Suzuki

Application Number:

JP2013066538A

Publication Date:

September 21, 2016

Filing Date:

March 27, 2013

Export Citation:

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