GB1133915A - Process for improving the properties of hydraulic cements and cements made by this process - Google Patents

Process for improving the properties of hydraulic cements and cements made by this process

Info

Publication number
GB1133915A
GB1133915A GB31836/67A GB3183667A GB1133915A GB 1133915 A GB1133915 A GB 1133915A GB 31836/67 A GB31836/67 A GB 31836/67A GB 3183667 A GB3183667 A GB 3183667A GB 1133915 A GB1133915 A GB 1133915A
Authority
GB
United Kingdom
Prior art keywords
boiling
phase treatment
cement
heating
point
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.)
Expired
Application number
GB31836/67A
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.)
Ct D Etudes Scient Et Tech
Original Assignee
Ct D Etudes Scient Et Tech
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
Priority claimed from FR4973A external-priority patent/FR1493733A/en
Application filed by Ct D Etudes Scient Et Tech filed Critical Ct D Etudes Scient Et Tech
Publication of GB1133915A publication Critical patent/GB1133915A/en
Expired 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
    • C04B7/36—Manufacture of hydraulic cements in general
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/02—Selection of the hardening environment
    • C04B40/0263—Hardening promoted by a rise in temperature
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/04—Preventing evaporation of the mixing water
    • 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
    • C04B7/345—Hydraulic cements not provided for in one of the groups C04B7/02 - C04B7/34
    • C04B7/3453—Belite cements, e.g. self-disintegrating cements based on dicalciumsilicate
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

1,133,915. Hydraulic cement. CENTRE D'ETUDES SCIENTIFIQUES ET TECHNIQUES. 11 July, 1967 [21 July, 1966 ; 8 Sept., 1966], No. 31836/67. Heading C1H. Hydraulic cement is improved by a process comprising progressively heating the cement in a wet phase treatment without evaporation to a temperature slightly below boiling and then progressively desiccating in a dry phase treatment by heating above the boiling point. The process may consist of heating the cement in hot water saturated with lime, increasing the temperature just above the boiling-point at atmospheric pressure and then treating above the boiling- point in a steam-free zone. The wet phase treatment is preferably carried out in a closed adiabatic zone which is opened for the dry phase treatment. The hydraulic cement produced is characterized by resistance to crumbling at above 500‹ C., a compressive strength of 600 kg/cm.<SP>2</SP>, a resistance to traction of 110 kg/ cm.<SP>2</SP> and a loss of strength of less than 5% after 3 months at 250‹ C.
GB31836/67A 1966-07-21 1967-07-11 Process for improving the properties of hydraulic cements and cements made by this process Expired GB1133915A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR4973A FR1493733A (en) 1966-07-21 1966-07-21 Thermal treatments of hydraulic binders
FR4985A FR90791E (en) 1966-07-21 1966-09-08 Thermal treatments of hydraulic binders

Publications (1)

Publication Number Publication Date
GB1133915A true GB1133915A (en) 1968-11-20

Family

ID=26235389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31836/67A Expired GB1133915A (en) 1966-07-21 1967-07-11 Process for improving the properties of hydraulic cements and cements made by this process

Country Status (3)

Country Link
CH (1) CH482633A (en)
DE (1) DE1646444A1 (en)
GB (1) GB1133915A (en)

Also Published As

Publication number Publication date
CH482633A (en) 1969-12-15
DE1646444A1 (en) 1971-08-12

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