FR2301492A2 - Cement grout obtd. from gas washing muds - uses lime and limestone added for washing and fly ash in the gas - Google Patents

Cement grout obtd. from gas washing muds - uses lime and limestone added for washing and fly ash in the gas

Info

Publication number
FR2301492A2
FR2301492A2 FR7505280A FR7505280A FR2301492A2 FR 2301492 A2 FR2301492 A2 FR 2301492A2 FR 7505280 A FR7505280 A FR 7505280A FR 7505280 A FR7505280 A FR 7505280A FR 2301492 A2 FR2301492 A2 FR 2301492A2
Authority
FR
France
Prior art keywords
washing
fly ash
lime
gas
muds
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7505280A
Other languages
French (fr)
Other versions
FR2301492B2 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iu Conversion Systems Inc
Original Assignee
Iu Conversion Systems Inc
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
Application filed by Iu Conversion Systems Inc filed Critical Iu Conversion Systems Inc
Priority to FR7505280A priority Critical patent/FR2301492A2/en
Publication of FR2301492A2 publication Critical patent/FR2301492A2/en
Application granted granted Critical
Publication of FR2301492B2 publication Critical patent/FR2301492B2/fr
Granted legal-status Critical Current

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
    • C04B7/00—Hydraulic cements
    • C04B7/24—Cements from oil shales, residues or waste other than slag
    • 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
    • C04B28/18—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 mixtures of the silica-lime type
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The parent patent described removal and use of washing muds obtd. from washing off-gases with lime or limestone to remove sulphur oxides. The muds which contain sulphites and/or sulphites are dehydrated and treated with lime and/or fly ash to give cementitious compsns. comprising 30-90% solids including 0.25-70% alkaline earth sulphite, 0.25-70 wt % alkaline earth hydroxide and 10-99.5% fly ash. This mixt. was used for grouting or pointing of mortar layers on brick buildings. In this addition patent, the mud itself can provide part or all the alkaline earth hydroxide and/or the fly ash necessary to provide the stoichiometric excess of lime or limestone used in the washing and subsequently available for reaction. Similarly the fly ash need not be separated from the off gases before washing and this flay ash is then available to the reaction. The residual matl. has a pozzolanic activity equal to 10-99.5% of fly ash according to ASTM C 618. There is no need to separate the fly ash before operation and the lime needed may be incorporated at the washing stage.
FR7505280A 1975-02-20 1975-02-20 Cement grout obtd. from gas washing muds - uses lime and limestone added for washing and fly ash in the gas Granted FR2301492A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7505280A FR2301492A2 (en) 1975-02-20 1975-02-20 Cement grout obtd. from gas washing muds - uses lime and limestone added for washing and fly ash in the gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7505280A FR2301492A2 (en) 1975-02-20 1975-02-20 Cement grout obtd. from gas washing muds - uses lime and limestone added for washing and fly ash in the gas

Publications (2)

Publication Number Publication Date
FR2301492A2 true FR2301492A2 (en) 1976-09-17
FR2301492B2 FR2301492B2 (en) 1980-12-26

Family

ID=9151478

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7505280A Granted FR2301492A2 (en) 1975-02-20 1975-02-20 Cement grout obtd. from gas washing muds - uses lime and limestone added for washing and fly ash in the gas

Country Status (1)

Country Link
FR (1) FR2301492A2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339708A1 (en) * 1976-02-02 1977-08-26 Nicholson Realty Ltd MIXTURE FOR BASE COATS FOR ROAD COATINGS AND ITS OBTAINING
FR2351067A1 (en) * 1976-05-11 1977-12-09 Nicholson Realty Ltd COMPOSITION FOR ROAD BASE LAYER AND ITS PREPARATION PROCESS
EP0010472A2 (en) * 1978-10-24 1980-04-30 Jean Couturier Hydraulic binder and its application
WO1982000998A1 (en) * 1980-09-19 1982-04-01 Bye G Method of processing waste materials
FR2504912A1 (en) * 1981-05-02 1982-11-05 Hoelter H MASSES TO BE DESIGNED TO CONSOLIDATE THE FRESHLY HOLLOW FIELD, PREFERABLY FOR MINING GALLERIES
EP0124038A2 (en) * 1983-04-29 1984-11-07 ECODECO S.p.A. Process for producing cement material from industrial processing and urban slurries

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339708A1 (en) * 1976-02-02 1977-08-26 Nicholson Realty Ltd MIXTURE FOR BASE COATS FOR ROAD COATINGS AND ITS OBTAINING
FR2351067A1 (en) * 1976-05-11 1977-12-09 Nicholson Realty Ltd COMPOSITION FOR ROAD BASE LAYER AND ITS PREPARATION PROCESS
EP0010472A2 (en) * 1978-10-24 1980-04-30 Jean Couturier Hydraulic binder and its application
EP0010472A3 (en) * 1978-10-24 1980-05-14 Jean Couturier Hydraulic binder and its application
WO1982000998A1 (en) * 1980-09-19 1982-04-01 Bye G Method of processing waste materials
FR2504912A1 (en) * 1981-05-02 1982-11-05 Hoelter H MASSES TO BE DESIGNED TO CONSOLIDATE THE FRESHLY HOLLOW FIELD, PREFERABLY FOR MINING GALLERIES
EP0124038A2 (en) * 1983-04-29 1984-11-07 ECODECO S.p.A. Process for producing cement material from industrial processing and urban slurries
EP0124038A3 (en) * 1983-04-29 1985-11-13 ECODECO S.p.A. Process for producing cement material from industrial processing and urban slurries

Also Published As

Publication number Publication date
FR2301492B2 (en) 1980-12-26

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