GB437855A - Improvements in and relating to the manufacture of cement - Google Patents

Improvements in and relating to the manufacture of cement

Info

Publication number
GB437855A
GB437855A GB1067/35A GB106735A GB437855A GB 437855 A GB437855 A GB 437855A GB 1067/35 A GB1067/35 A GB 1067/35A GB 106735 A GB106735 A GB 106735A GB 437855 A GB437855 A GB 437855A
Authority
GB
United Kingdom
Prior art keywords
ingredients
cement
sulphate
slag cements
relating
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
GB1067/35A
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.)
Ciments De Thieu SA Des
Original Assignee
Ciments De Thieu SA Des
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 Ciments De Thieu SA Des filed Critical Ciments De Thieu SA Des
Publication of GB437855A publication Critical patent/GB437855A/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
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
    • C04B7/21—Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing activators
    • 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)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

In a cement composed of calcium sulphate and other ingredients, the calcium sulphate is calcined at above 850 DEG C. but below such a temperature as causes decomposition-preferably between 900 and 1200 DEG C.-before being added to the other ingredients. The other ingredients may comprise Portland or aluminous cement, pozzalanas, limes and especially slags and slag cements. The sulphate and other ingredients may be ground together preferably in the presence of an agent assisting grinding such as coke. The proportion of sulphate may range from 3 to 5 per cent as for Portland and slag cements to 20 per cent or higher for the production of "supersulphated" slag cements.
GB1067/35A 1934-01-13 1935-01-11 Improvements in and relating to the manufacture of cement Expired GB437855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE437855X 1934-01-13

Publications (1)

Publication Number Publication Date
GB437855A true GB437855A (en) 1935-11-06

Family

ID=3869626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1067/35A Expired GB437855A (en) 1934-01-13 1935-01-11 Improvements in and relating to the manufacture of cement

Country Status (1)

Country Link
GB (1) GB437855A (en)

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