NL7704122A - Briquetted cement prodn. - with high calcium sulphate dihydrate content, has improved storage properties over powdered cement - Google Patents

Briquetted cement prodn. - with high calcium sulphate dihydrate content, has improved storage properties over powdered cement

Info

Publication number
NL7704122A
NL7704122A NL7704122A NL7704122A NL7704122A NL 7704122 A NL7704122 A NL 7704122A NL 7704122 A NL7704122 A NL 7704122A NL 7704122 A NL7704122 A NL 7704122A NL 7704122 A NL7704122 A NL 7704122A
Authority
NL
Netherlands
Prior art keywords
cement
briquetting
calcium sulphate
improved storage
sulphate dihydrate
Prior art date
Application number
NL7704122A
Other languages
Dutch (nl)
Original Assignee
Gerrit Van Der Wiele Beukstraa
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 Gerrit Van Der Wiele Beukstraa filed Critical Gerrit Van Der Wiele Beukstraa
Priority to NL7704122A priority Critical patent/NL7704122A/en
Priority to BE177042A priority patent/BE853981A/en
Publication of NL7704122A publication Critical patent/NL7704122A/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
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/48—Clinker treatment
    • C04B7/52—Grinding ; After-treatment of ground cement
    • C04B7/522—After-treatment of ground cement
    • C04B7/525—Briquetting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Process for briquetting cement comprises (a) mixing powdered cement with 2-4 wt.% water and (b) briquetting the mixt. in a rotary or stamping press. at a press. of 1500-500 kg/cm2 to maximum density. Due to the briquetting process, the plaster modifications present (hemihydrate and anhydrite) are converted into the calcium sulphate dihydrate by the constant internal press. of the moisture present. The briquettes give higher quality concretes etc., have improved storage properties cf. standard powdered cement, are easier to transport and handling costs. No special arrangements need be made for on-site storage (in contrase to normal bags of cement which must e.g. be piled onto pallets and e.g. packaged in protective film). Generally the briquettes are comminuted to the original particle size of the cement before use, when they have the technological properties of fresh cement.
NL7704122A 1977-04-14 1977-04-14 Briquetted cement prodn. - with high calcium sulphate dihydrate content, has improved storage properties over powdered cement NL7704122A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL7704122A NL7704122A (en) 1977-04-14 1977-04-14 Briquetted cement prodn. - with high calcium sulphate dihydrate content, has improved storage properties over powdered cement
BE177042A BE853981A (en) 1977-04-14 1977-04-26 BRICKET TREATED CEMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7704122A NL7704122A (en) 1977-04-14 1977-04-14 Briquetted cement prodn. - with high calcium sulphate dihydrate content, has improved storage properties over powdered cement

Publications (1)

Publication Number Publication Date
NL7704122A true NL7704122A (en) 1978-10-17

Family

ID=19828355

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7704122A NL7704122A (en) 1977-04-14 1977-04-14 Briquetted cement prodn. - with high calcium sulphate dihydrate content, has improved storage properties over powdered cement

Country Status (2)

Country Link
BE (1) BE853981A (en)
NL (1) NL7704122A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1012123C2 (en) * 1999-05-21 2000-12-04 Grint En Zandexpl Mij V H Gebr Method and device for manufacturing a pill-shaped semi-product, suitable as a filler for a concrete mixture.

Also Published As

Publication number Publication date
BE853981A (en) 1977-08-16

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Legal Events

Date Code Title Description
BV The patent application has lapsed