GB924419A - Improvements in or relating to concrete and to aggregates therefor - Google Patents
Improvements in or relating to concrete and to aggregates thereforInfo
- Publication number
- GB924419A GB924419A GB12792/60A GB1279260A GB924419A GB 924419 A GB924419 A GB 924419A GB 12792/60 A GB12792/60 A GB 12792/60A GB 1279260 A GB1279260 A GB 1279260A GB 924419 A GB924419 A GB 924419A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sand
- calcium hypochlorite
- hypochlorite
- concrete mix
- solution
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
-
- 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
- C04B28/04—Portland cements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Sand for use in a concrete mix is treated by intimately mixing it with calcium hypochlorite to eliminate the deleterious effects of pyrite and marcasite in the sand. Preferably a slurry of sand containing calcium hypochlorite is rendered alkaline by addition of caustic soda or lime, and the mixture aerated by agitation in the presence of air. According to the Provisional Specification, the calcium hypochlorite may be replaced by one or more of potassium permanganate, potassium dichromate, sodium hypochlorite solution, or hydrogen peroxide solution.ALSO:Sand is treated during incorporation into a concrete mix by intimately mixing it with calcium hypochlorite, to eliminate the deleterious effect of pyrite and marcasite in the sand. Preferably calcium hypochlorite is added to a concrete mix containing Portland cement, water, and sand, with or without other aggregate and/or alkali, and aerating the mix by agitation in the presence of air. According to the Provisional Specification, the calcium hypochlorite may be replaced by one or more of potassium permanganate, potassium dichromate, sodium hypochlorite solution, or hydrogen peroxide solution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB12792/60A GB924419A (en) | 1960-04-11 | 1960-04-11 | Improvements in or relating to concrete and to aggregates therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB12792/60A GB924419A (en) | 1960-04-11 | 1960-04-11 | Improvements in or relating to concrete and to aggregates therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB924419A true GB924419A (en) | 1963-04-24 |
Family
ID=10011225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12792/60A Expired GB924419A (en) | 1960-04-11 | 1960-04-11 | Improvements in or relating to concrete and to aggregates therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB924419A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2383238A1 (en) * | 2010-04-29 | 2011-11-02 | Solvay SA | Process for the manufacture of aerated concrete construction materials and construction materials obtained thereof |
-
1960
- 1960-04-11 GB GB12792/60A patent/GB924419A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2383238A1 (en) * | 2010-04-29 | 2011-11-02 | Solvay SA | Process for the manufacture of aerated concrete construction materials and construction materials obtained thereof |
WO2011135083A1 (en) * | 2010-04-29 | 2011-11-03 | Solvay Sa | Process for the manufacture of aerated concrete construction materials and construction materials obtained thereof |
CN102918002A (en) * | 2010-04-29 | 2013-02-06 | 索尔维公司 | Process for the manufacture of aerated concrete construction materials and construction materials obtained thereof |
CN102918002B (en) * | 2010-04-29 | 2016-04-20 | 索尔维公司 | For the manufacture of method and the thus obtained material of construction of gas concrete material of construction |
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