A process for producing a dry lime and aggregate mix

A process for producing a dry Lime and sand mix comprising aggregates and a lime-based binder is disclosed which is characterised by the successive steps of:a) admixing a pre-determined quantity of calcium oxide (CaO) containing compound with wet aggregates, said aggregates having a predetermined fr...

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Bibliographic Details
Main Authors DAVID CHRISTOPHER HUGHES, JAMES MARSHALL ILLINGWORTH, IAN JOHN PRITCHETT
Format Patent
LanguageEnglish
Published 15.09.2010
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:A process for producing a dry Lime and sand mix comprising aggregates and a lime-based binder is disclosed which is characterised by the successive steps of:a) admixing a pre-determined quantity of calcium oxide (CaO) containing compound with wet aggregates, said aggregates having a predetermined free water content;b) providing a period of storage; andC) admixing at least one hydraulic component or binder wherein the amount of calcium oxide used is in the range of 109 to 280 wt% of said free water content or, alternatively, of 35 to 90 mol% of said free water content. The lime may be in the form of quicklime. The hydraulic binder may be Portland cement, ground granulated blast furnace slag, fly ash, silica fume, metakaolin or natural hydraulic lime.
Bibliography:Application Number: GB20100003989