GB990118A - Improvements in or relating to portland cement - Google Patents

Improvements in or relating to portland cement

Info

Publication number
GB990118A
GB990118A GB3773561A GB3773561A GB990118A GB 990118 A GB990118 A GB 990118A GB 3773561 A GB3773561 A GB 3773561A GB 3773561 A GB3773561 A GB 3773561A GB 990118 A GB990118 A GB 990118A
Authority
GB
United Kingdom
Prior art keywords
portland cement
aluminate
hydro
cement
raw material
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
GB3773561A
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.)
Bakoma A G
Original Assignee
Bakoma A G
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 Bakoma A G filed Critical Bakoma A G
Publication of GB990118A publication Critical patent/GB990118A/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
    • C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
    • C04B7/42—Active ingredients added before, or during, the burning process
    • 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
    • C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A high early strength Portland cement is obtained by intimately mixing the raw material with finely divided calcium hydrosilicate and/or hydro-aluminate. The calcium hydrosilicate or hydro-aluminate may be in an amount of 1 to 60% by weight of the raw material. A sulphide, or a compound which, during burning, yields a sulphide, may also be added. Pre-set Portland cement can be used as a source of calcium hydrosilicate and/or hydro-aluminate. In an example, 100 kg. dry, raw material such as is used for burning to give so-called early strength Portland cement is mixed in a tube mill with 25 kg. ground pre-set Portland cement, and 10 kg. coal are added. The mixture is burnt. The clinker is then milled with 6% gypsum. Concrete blocks are prepared from 1 part of this cement, 2 parts of sand, 4 parts of aggregate and a water/cement factor of 0.6.
GB3773561A 1960-10-20 1961-10-20 Improvements in or relating to portland cement Expired GB990118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1174760A CH386907A (en) 1960-10-20 1960-10-20 Process for the production of portland cement with high green strength

Publications (1)

Publication Number Publication Date
GB990118A true GB990118A (en) 1965-04-28

Family

ID=4376506

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3773561A Expired GB990118A (en) 1960-10-20 1961-10-20 Improvements in or relating to portland cement

Country Status (4)

Country Link
BE (1) BE608409A (en)
CH (1) CH386907A (en)
DE (1) DE1471004A1 (en)
GB (1) GB990118A (en)

Also Published As

Publication number Publication date
BE608409A (en) 1962-01-15
DE1471004A1 (en) 1969-04-10
CH386907A (en) 1965-01-15

Similar Documents

Publication Publication Date Title
ES8505904A1 (en) Concrete additive admixture containing microsilica and concrete produced therewith
GB1498057A (en) Hydraulic cements
SU948931A1 (en) Method for producing cement
BG33003A3 (en) Method for obtaining of raw flower for production of cement and sulfuric acid
GB990118A (en) Improvements in or relating to portland cement
GB833071A (en) Hydraulic cement and method of preparation thereof
SU392027A1 (en) RAW MIXTURE
SU808461A1 (en) Concrete mix
GB920446A (en) Improvements in or relating to cementitious compositions
GB986620A (en) Improvement in production method for cement mortar or concrete
SU119469A1 (en) Method of making mortars and concretes
GB244603A (en) Improvements in the process of making cement and mortar
SU120755A1 (en) The method of obtaining plasticizers for cements
SU483363A1 (en) Claydite mixture
SU93208A1 (en) The method of obtaining sulphated cement
SU69294A1 (en) The method of producing anhydrite cement
SU1723063A1 (en) Raw mixture for preparation of admixture to cement
SU101263A1 (en) The method of obtaining cementless autoclaved slag-foam concrete
SU697440A1 (en) Raw mixture for producing heat-resistant concrete
GB1069657A (en) Cementitious dry mix for inclusion in concrete articles
GB856218A (en) Improvements in or relating to hydraulic binders
GB425048A (en) Improvements in the manufacture of portland cement
GB401361A (en) Improvements in and relating to the manufacture of cementitious compositions
GB404787A (en) Method of producing hydraulic building materials
GB306444A (en) Improved cellular concrete and method of making the same