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1. (WO1991006513) PROCESS FOR PRODUCING AN ACTIVE FINE AGGREGATE FOR THE PREPARATION OF CONCRETE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006513 International Application No.: PCT/FI1990/000250
Publication Date: 16.05.1991 International Filing Date: 24.10.1990
Chapter 2 Demand Filed: 22.02.1991
IPC:
C04B 20/10 (2006.01)
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
20
Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/-C04B18/159; Treatment of materials according to more than one of the groups C04B14/-C04B18/116; Expanding or defibrillating materials
10
Coating or impregnating
Applicants:
LOHJA RAKENNUSMATERIAALIT OY AB [FI/FI]; SF-08700 Virkkala, FI (AllExceptUS)
ERIKSSON, Bo-Erik [FI/FI]; FI (UsOnly)
Inventors:
ERIKSSON, Bo-Erik; FI
Agent:
OY KOLSTER AB; Stora Robertsgatan 23 P.O. Box 148 SF-00121 Helsinki, FI
Priority Data:
89509026.10.1989FI
Title (EN) PROCESS FOR PRODUCING AN ACTIVE FINE AGGREGATE FOR THE PREPARATION OF CONCRETE
(FR) PROCEDE DE FABRICATION DE GRANULAT FIN ACTIF AFIN DE PREPARER DU BETON
Abstract:
(EN) The invention relates to a process for producing an active fine aggregate, i.e. an active filler, for the preparation of concrete. In the process are ground pozzolanic substances, practically silica, together with inactive and/or weakly active components, as lump slag, which makes it possible to have the silica in the filler in very small particles activating the surfaces of the other components to react easily with the calcium hydroxide.
(FR) On décrit un procédé de fabrication d'un granulat fin actif, c'est-à-dire un matériau de remplissage actif, afin de préparer du béton. Selon le procédé, on broie des substances pouzzolaniques, en pratique de la silice, avec des éléments inactifs et/ou peu actifs, tels que le laitier concassé, ce qui permet d'obtenir, dans le matériau de remplissage, de la silice en très petites particules qui activent les surfaces des autres éléments afin de réagir facilement avec l'hydroxyde de calcium.
Designated States: NO, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO19921603EP0498815