GB924419A - Improvements in or relating to concrete and to aggregates therefor - Google Patents

Improvements in or relating to concrete and to aggregates therefor

Info

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
Application number
GB12792/60A
Inventor
Robert Leonard Pemberton
George Shuttleworth
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.)
MARLEY TILE CO Ltd
Original Assignee
MARLEY TILE CO Ltd
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 MARLEY TILE CO Ltd filed Critical MARLEY TILE CO Ltd
Priority to GB12792/60A priority Critical patent/GB924419A/en
Publication of GB924419A publication Critical patent/GB924419A/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
    • 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.
GB12792/60A 1960-04-11 1960-04-11 Improvements in or relating to concrete and to aggregates therefor Expired GB924419A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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