Agent for retarding pozzolana-type setting

Agent for retarding pozzolana-type setting

An agent and a process for retarding the pozzolana-type setting of mixtures of fly ashes and calcium hydroxide and, if appropriate, calcium sulphates use ligninsulphonic acids and/or ligninsulphonates. The retardation of the setting is observed only during the first 24 hours. The compressive strengt...

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Hauptverfasser: JURKOWITSCH,HEINZ,.DR, HUELLER,ROLF,.DR
Format: Patent
Sprache:eng ; ger
Schlagworte:
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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creator JURKOWITSCH,HEINZ,.DR
HUELLER,ROLF,.DR
description An agent and a process for retarding the pozzolana-type setting of mixtures of fly ashes and calcium hydroxide and, if appropriate, calcium sulphates use ligninsulphonic acids and/or ligninsulphonates. The retardation of the setting is observed only during the first 24 hours. The compressive strengths after 28 days and the permeability and elution properties are not affected.
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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
title Agent for retarding pozzolana-type setting
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