Cementitious compositions

The invention provides a cementitious composition comprising a cement component comprising (i) an accelerant, (ii) a calcium sulphate source and (iii) an ettringite forming cement; an aggregate; and optionally water; wherein the cement has a minimum unconfined compressive strength of 1500 psi when t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JEWELL ROBERT BENJAMIN, MILLS PETER SHELLEY, RATHBONE ROBERT F, ROBL THOMAS L
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention provides a cementitious composition comprising a cement component comprising (i) an accelerant, (ii) a calcium sulphate source and (iii) an ettringite forming cement; an aggregate; and optionally water; wherein the cement has a minimum unconfined compressive strength of 1500 psi when tested in accordance with ASTM C1140 and/or C1604 at 15 minutes after placement; methods for its use and concrete formed from it.