GB513899A - Improvements in and relating to the manufacture of cements from calcium sulphate and blast furnace slag - Google Patents
Improvements in and relating to the manufacture of cements from calcium sulphate and blast furnace slagInfo
- Publication number
- GB513899A GB513899A GB550738A GB550738A GB513899A GB 513899 A GB513899 A GB 513899A GB 550738 A GB550738 A GB 550738A GB 550738 A GB550738 A GB 550738A GB 513899 A GB513899 A GB 513899A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lime
- cement
- cements
- per cent
- calcium sulphate
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag cements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
513,899. Cements, mortars &c. WALLACE, N. E., LEFEBURE, V., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 22, 1938, No. 5507. [Class 22] The strength and hardness of cements comprising blast furnace slag, calcium sulphate and Portland cement clinker are improved by allowing the cement to set in the presence of additional lime derived from a liquid medium in contact with the setting cement or from a limecontaining or lime-producing substance other than lime itself or Portland cement clinker, added to the mix. The fineness of the cement is preferable such that at least 60 per cent. by weight of the slag, at least 50 per cent. of the Portland cement clinker and at least 60 per cent. of the final cement comprises particles not exceeding 30 microns in diameter, as described in Specification 513,897. The lime may be added by curing the setting cement in lime water, or by adding crushed sand-lime bricks or crushed calcium sulphate (plaster of Paris), containing 10-20 per cent. of lime to the cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB550738A GB513899A (en) | 1938-02-22 | 1938-02-22 | Improvements in and relating to the manufacture of cements from calcium sulphate and blast furnace slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB550738A GB513899A (en) | 1938-02-22 | 1938-02-22 | Improvements in and relating to the manufacture of cements from calcium sulphate and blast furnace slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB513899A true GB513899A (en) | 1939-10-25 |
Family
ID=9797516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB550738A Expired GB513899A (en) | 1938-02-22 | 1938-02-22 | Improvements in and relating to the manufacture of cements from calcium sulphate and blast furnace slag |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB513899A (en) |
-
1938
- 1938-02-22 GB GB550738A patent/GB513899A/en not_active Expired
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