British Lime Association (BLA) part of the Mineral Products Association (MPA)
 

bla

british lime association

 
 

About

BLA Glossary

Agricultural lime

Lime and dolomitic lime products that are used in agriculture to neutralise soil acidity - more information is available from the Agricultural Lime Association – www.aglime.org.uk

Air lime

Lime which combines and hardens with carbon dioxide present in air - air lime has no hydraulic properties; air lime is divided into two sub-families, calcium lime and dolomitic lime

Building lime

Group of lime products, consisting of two families: air lime and lime with hydraulic properties, used in applications or materials for construction, building and civil engineering

Burnt lime

The group of products that are formed from the calcination of limestone, chalk or dolomitic limestone

CaCO3

See calcium carbonate

Ca(CO3)2.Mg(CO3)2

See calcium magnesium carbonate

Calcination

The process of heating to high temperature that brings about thermal decomposition of calcium carbonate or calcium magnesium carbonate

Calcium carbonate

The calcium compound naturally occurring in limestone, dolomitic limestone and chalk rocks and is the reaction product of the carbonation of quicklime, hydrated lime, and dolomitic lime – having the chemical formula CaCO3­ - see also calcium magnesium carbonate and precipitated calcium carbonate

Calcium hydroxide The product of the exothermic reaction of quicklime and water– see also hydrated lime or slaked lime

Calcium lime

Calcium lime is an air lime consisting mainly of calcium oxide and/or calcium hydroxide without any hydraulic or pozzolanic addition

Calcium magnesium carbonate

The compound formed by hydrothermal infusion of magnesium into calcium carbonate replacing some of the calcium with magnesium – this occurs within the affected limestone rock over geological timescales to form dolomitic limestone – see also dolomite

Calcium magnesium hydroxide

The produce of the exothermic reaction of dolomitic quicklime and water - see also hydrated lime.

Calcium magnesium oxide

See dolomitic quicklime

Calcium oxide See quicklime

CaO

See quicklime

Ca(OH)2­

See hydrated lime

Ca(OH)2.Mg(OH)2

See hydrated lime

CaO.MgO See dolomitic quicklime

Carbonation

The reaction of lime with carbon dioxide in the air

Chalk

A naturally occurring rock form of calcium carbonate

Dead burnt lime Quicklime which does not slake readily under normal conditions

Dead burnt dolime

Dolomitic quicklime which does not slake readily under normal conditions

Dolime

Abbreviation of dolomitic lime

Dolomite A mineral composed of calcium magnesium carbonate, ideally Ca(CO3)2.Mg(CO3)2

Dolomitic quicklime

Dolomitic quicklime is an air lime mainly in the oxide form which reacts exothermically on contact with water – commonly calcium magnesium oxide, with the chemical formula CaO.MgO

Dolomitic lime

An air lime consisting mainly of calcium magnesium oxide and/or calcium magnesium hydroxide without any hydraulic or pozzolanic addition

Dolomitic limestone

A sedimentary rock primarily composed of the mineral dolomite

FL Abbreviation of Formulated lime

Formulated lime

A lime with hydraulic properties mainly consisting of air lime and/or natural hydraulic lime with added hydraulic and/or pozzolanic material; it has the property of setting and hardening when mixed with water and by reaction with carbon dioxide from the air (carbonation)

Hydrated lime

An air lime mainly in the hydroxide form produced by the controlled slaking of quicklime – having the chemical formula Ca(OH)2­; hydrated lime is available as powder, putty, or slurry or milk of lime; dolomitic lime is also produced as semi-hydrated dolomitic lime

Hydraulic lime A binder consisting of lime and other materials such as cement, blast furnace slag, fly ash, limestone filler and other suitable materials - it has the property of setting and hardening under water, atmospheric carbon dioxide contributes to the hardening process

Lime

Calcium oxide and/or hydroxide, and calcium magnesium oxide and/or hydroxide produced by the thermal decomposition (calcination) of naturally occurring calcium carbonate (for example limestone, chalk, shells) or naturally occurring calcium magnesium carbonate (for example dolomitic limestone, dolomite)

Lime putty

A paste made by mixing quicklime or hydrated lime with water

Lime slurry

A fluid suspension of hydrated lime in an excess of water made by mixing quicklime or hydrated lime with water

Lime with hydraulic properties

Lime consisting mainly of calcium hydroxide, calcium silicates and calcium aluminates - it has the property of setting and hardening when mixed with water and/or under water; reaction with atmospheric carbon dioxide (carbonation) is part of the hardening process - lime with hydraulic properties is divided into three subfamilies, natural hydraulic lime, formulated lime and hydraulic lime

Limestone

A naturally occurring sedimentary rock form of calcium carbonate

Lime wash

See lime slurry

Liquid lime

See lime slurry

Lump quicklime

Quicklime products with a top size above 2.5 cm

Magnesia

See magnesium oxide

Magnesium oxide Compound with the chemical formula MgO

Milk of lime

See lime slurry

Natural hydraulic lime

Natural hydraulic lime is a lime with hydraulic properties produced by burning of more or less argillaceous or siliceous limestones (including chalk) with reduction to powder by slaking with or without grinding; it has the property of setting and hardening when mixed with water and by reaction with carbon dioxide from the air (carbonation) - the hydraulic properties exclusively result from the special chemical composition of the natural raw material

NHL Abbreviation for natural hydraulic lime

Olivine

A natural mineral form of magnesium iron silicate used in steelmaking

PCC

Abbreviation for precipitated calcium carbonate

Precipitated Calcium Carbonate

The reaction product of the carbonation of hydrated lime – used mainly in the paper industry

Quicklime Quicklime is an air lime mainly in the oxide form which reacts exothermically on contact with water – commonly calcium oxide, with the chemical formula CaO

Sintering

Heating to coalesce particles into a single porous mass

Sintered dolomitic lime

Dolomitic lime products that have been subjected to high temperature treatment in a kiln after calcination

Slaked lime See hydrated lime
Slaking The process of adding water to quicklime to form hydrated lime

Whitewash

See lime slurry

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 

The British Lime Association (BLA) is one of the constituent bodies of the Mineral Products Association (MPA).

Mineral Products Association
Gillingham House,
38-44 Gillingham Street,
London SW1V 1HU
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  E-mail bla@mineralproducts.org
  Tel 0207 963 8000
 

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