NZ755774A - Method of preparing coal ash, coal ash, and cement composition - Google Patents

Method of preparing coal ash, coal ash, and cement composition

Info

Publication number
NZ755774A
NZ755774A NZ755774A NZ75577417A NZ755774A NZ 755774 A NZ755774 A NZ 755774A NZ 755774 A NZ755774 A NZ 755774A NZ 75577417 A NZ75577417 A NZ 75577417A NZ 755774 A NZ755774 A NZ 755774A
Authority
NZ
New Zealand
Prior art keywords
coal ash
crushed
particles
lightness
preparing
Prior art date
Application number
NZ755774A
Inventor
Kenji Miyawaki
Original Assignee
Sumitomo Osaka Cement Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=62143886&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NZ755774(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sumitomo Osaka Cement Co Ltd filed Critical Sumitomo Osaka Cement Co Ltd
Publication of NZ755774A publication Critical patent/NZ755774A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/10—Burned or pyrolised refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/14—Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/24—Cements from oil shales, residues or waste other than slag
    • C04B7/28—Cements from oil shales, residues or waste other than slag from combustion residues, e.g. ashes or slags from waste incineration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)
  • Crushing And Grinding (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Detergent Compositions (AREA)

Abstract

Provided is a method of preparing coal ash for improving cement mixing properties comprising: a. crushing raw coal ash having an ignition loss of 3.5 mass% or higher in a mill to produce crushed particles; b. Monitoring size distribution, colour lightness and specific surface area of the crushed particles; c. Terminating crushing when: i. a ratio (Lg/Lp) of a lightness (Lg value) of the crushed coal ash to a lightness (Lp value) of the raw coal ash as determined by a colour difference meter is 0.6 or higher and 0.9 or lower, and ii. the Blaine specific surface area of the crushed coal ash is 3200 cm2/g or higher and 4200 cm2/g or lower, and iii. a ratio (Vg/Vp) of a content (Vg (vol%)) of particles having a particle diameter of 45 μm or more in the crushed coal ash to a content (Vp (vol%)) of the particles having a particle diameter of 45 μm or more in the raw coal ash is 0.85 or lower. Accordingly, a 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.
NZ755774A 2017-02-02 2017-09-19 Method of preparing coal ash, coal ash, and cement composition NZ755774A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017017452A JP6323579B1 (en) 2017-02-02 2017-02-02 Coal ash production method
PCT/JP2017/033788 WO2018142661A1 (en) 2017-02-02 2017-09-19 Method for producing coal ash, coal ash, and cement composition

Publications (1)

Publication Number Publication Date
NZ755774A true NZ755774A (en) 2020-05-29

Family

ID=62143886

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ755774A NZ755774A (en) 2017-02-02 2017-09-19 Method of preparing coal ash, coal ash, and cement composition

Country Status (8)

Country Link
JP (1) JP6323579B1 (en)
KR (1) KR102202526B1 (en)
CN (1) CN109414704B (en)
AU (1) AU2017396650B2 (en)
NZ (1) NZ755774A (en)
PH (1) PH12018501223B1 (en)
SG (1) SG11201900713XA (en)
WO (1) WO2018142661A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11202110019VA (en) * 2019-03-29 2021-10-28 Taiheiyo Cement Corp Soil improvement cement composition, soil improvement construction method and soil improvement body
CN112851229A (en) * 2021-01-11 2021-05-28 南昌大学 Environment-friendly building material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0826740A (en) 1994-07-16 1996-01-30 Yamamura Glass Co Ltd Orifice replacing device
JP3200634B2 (en) 1997-06-16 2001-08-20 太平洋セメント株式会社 Method of reforming fly ash
US6038987A (en) * 1999-01-11 2000-03-21 Pittsburgh Mineral And Environmental Technology, Inc. Method and apparatus for reducing the carbon content of combustion ash and related products
JP4832812B2 (en) * 2005-06-23 2011-12-07 東北電力株式会社 Plastic injection material using coal ash and injection method of the plastic injection material
JP2007054773A (en) 2005-08-26 2007-03-08 Mitsui Eng & Shipbuild Co Ltd Unburned carbon removal method in coal ash
JP5455612B2 (en) * 2009-12-24 2014-03-26 太平洋セメント株式会社 Evaluation method of strength development of coal ash and improvement method of strength development
JP6356057B2 (en) * 2014-12-15 2018-07-11 株式会社トクヤマ Hydraulic composition containing bottom ash
CN106082879B (en) * 2016-06-27 2018-06-19 中建商品混凝土西安有限公司 A kind of cement base colour craftwork prepares material and preparation method thereof

Also Published As

Publication number Publication date
AU2017396650A1 (en) 2019-04-18
JP6323579B1 (en) 2018-05-16
KR102202526B1 (en) 2021-01-13
CN109414704A (en) 2019-03-01
JP2018122260A (en) 2018-08-09
PH12018501223A1 (en) 2019-02-04
KR20190113527A (en) 2019-10-08
CN109414704B (en) 2021-01-26
AU2017396650B2 (en) 2019-10-03
WO2018142661A1 (en) 2018-08-09
PH12018501223B1 (en) 2019-02-04
SG11201900713XA (en) 2019-02-27

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Legal Events

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PSEA Patent sealed
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 19 SEP 2022 BY DENNEMEYER + CO

Effective date: 20210911

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 19 SEP 2023 BY DENNEMEYER + CO. S.A.R.L.

Effective date: 20220913

RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 19 SEP 2024 BY DENNEMEYER + CO. S.A.R.L.

Effective date: 20230911