Title:
METHOD FOR PRODUCING COAL ASH, COAL ASH, AND CEMENT COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/142661
Kind Code:
A1
Abstract:
Provided is coal ash and a method for producing same, wherein coal ash containing a large amount of unburned carbon can be used without undergoing classification, and the uniformity of the mixing of cohesive soil during soil improvement can be improved. The method for producing coal ash comprises pulverizing coal ash having an ignition loss of 3.5 mass% or more such that the ratio (Lg/Lp) of the lightness (Lg value) of pulverized coal ash to the lightness (Lp value) of unpulverized coal ash is 0.9 or less.
Inventors:
MIYAWAKI KENJI (JP)
Application Number:
PCT/JP2017/033788
Publication Date:
August 09, 2018
Filing Date:
September 19, 2017
Export Citation:
Assignee:
SUMITOMO OSAKA CEMENT CO LTD (JP)
International Classes:
B02C17/04; B02C17/14; C04B7/28; C04B18/10; C04B28/02
Foreign References:
| JP2016113319A | 2016-06-23 | |||
| JP2007002100A | 2007-01-11 | |||
| JP2011133344A | 2011-07-07 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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