EP 0879216 A1 19981125 - CEMENT COMPOSITION

Title (en)

CEMENT COMPOSITION

Title (de)

ZEMENTZUSAMMENSETZUNG

Title (fr)

COMPOSITION DE CIMENT

Publication

EP 0879216 A1 19981125 (DE)

Application

EP 97945655 A 19971121

Priority

AT 9700256 W 19971121
AT 208296 A 19961129

Abstract (en)

[origin: WO9823550A1] The cement composition contains a) 10 - 35 wt.% cement, in particular portland cement b) 65 - 90 wt.% of a synthetic puzzolan, which was obtained by at least partial reduction of residues of combustion with a SiO2/CaO ratio > 1, like for example garbage incineration dross, and contains alkali oxide (Na2O and K2O) in quantities of over 1.5 wt.%, c) an activator for reducing the positive surface potential of the synthetic puzzolan, like for example anion-active or anionic tensides, in particular sulfonates.

IPC 1-7

C04B 7/13; C04B 28/02

IPC 8 full level

C04B 7/13 (2006.01); C04B 24/16 (2006.01); C04B 28/02 (2006.01)

CPC (source: EP US)

C04B 7/13 (2013.01 - EP US); C04B 24/16 (2013.01 - EP US); C04B 28/02 (2013.01 - EP US); Y02W 30/91 (2015.05 - EP US); Y10S 106/01 (2013.01 - EP US)

C-Set (source: EP US)

Citation (search report)

See references of WO 9823550A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IE IT LI LU NL SE

DOCDB simple family (publication)

WO 9823550 A1 19980604; CA 2244259 A1 19980604; CZ 268598 A3 19990217; EP 0879216 A1 19981125; HU P9902284 A2 20010628; JP 2000504301 A 20000411; NO 983479 D0 19980728; NO 983479 L 19980925; US 6036768 A 20000314; ZA 9710609 B 19980623

DOCDB simple family (application)

AT 9700256 W 19971121; CA 2244259 A 19971121; CZ 268598 A 19971121; EP 97945655 A 19971121; HU P9902284 A 19971121; JP 52404798 A 19971121; NO 983479 A 19980728; US 11758298 A 19980729; ZA 9710609 A 19971125