ALUMINOUS CEMENTS USING COAL FLY ASH

Addition of coal fly ash to calcium sulfoaluminate rapid-setting cements can lead to significant improvement and optimization of its properties. The addition of coal fly ash led to increased compressive strength and freeze-thaw durability while decreasing shrinkage and autoclave expansion. The prese...

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Bibliographische Detailangaben
Hauptverfasser:	RICE EDWARD K, KAO GRANT M, BESCHER ERIC P
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Addition of coal fly ash to calcium sulfoaluminate rapid-setting cements can lead to significant improvement and optimization of its properties. The addition of coal fly ash led to increased compressive strength and freeze-thaw durability while decreasing shrinkage and autoclave expansion. The presence of a super plasticizing agent negatively affected both compressive strength and shrinkage when used in combination with fly ash.