GB409120A - Improvements in and relating to the production of hydraulic cement - Google Patents
Improvements in and relating to the production of hydraulic cementInfo
- Publication number
- GB409120A GB409120A GB777733A GB777733A GB409120A GB 409120 A GB409120 A GB 409120A GB 777733 A GB777733 A GB 777733A GB 777733 A GB777733 A GB 777733A GB 409120 A GB409120 A GB 409120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbonate
- mesh sieve
- ground
- clinker
- per cent
- 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
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
- C04B7/12—Natural pozzuolanas; Natural pozzuolana cements; Artificial pozzuolanas or artificial pozzuolana cements other than those obtained from waste or combustion residues, e.g. burned clay; Treating inorganic materials to improve their pozzuolanic characteristics
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A hydraulic cement is made by mixing and grinding together a finely ground clinker material containing tricalcium silicate, e.g. Portland cement, and carbonate of lime which has been artificially dried and contains less than .5 per cent of moisture. The carbonate is preferably ground to pass an 8-mesh sieve and so to be relatively coarse as compared with the clinker. The proportion of dry carbonate is preferably 8 parts of carbonate to 1 of free calcium oxide in the clinker. In an example limestone or other calcium carbonate is crushed to pass a one-inch mesh, dried so that not more than .5 per cent of moisture remains, and ground to pass an 8-mesh sieve. The ground dry carbonate is then mixed with clinker of a fineness to have not more than 1 per cent residue on a 76 mesh sieve and not more than 10 per cent on a 180 mesh sieve. The mixture is then ground until the whole passes through a 50-mesh sieve. Specifications 345,103 and 385,664 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB777733A GB409120A (en) | 1933-03-14 | 1933-03-14 | Improvements in and relating to the production of hydraulic cement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB777733A GB409120A (en) | 1933-03-14 | 1933-03-14 | Improvements in and relating to the production of hydraulic cement |
Publications (1)
Publication Number | Publication Date |
---|---|
GB409120A true GB409120A (en) | 1934-04-26 |
Family
ID=9839508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB777733A Expired GB409120A (en) | 1933-03-14 | 1933-03-14 | Improvements in and relating to the production of hydraulic cement |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB409120A (en) |
-
1933
- 1933-03-14 GB GB777733A patent/GB409120A/en not_active Expired
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