Title (en)

PORTLAND CEMENT CLINKER AND USE THEREOF

Title (de)

PORTLANDZEMENTKLINKER UND DESSEN VERWENDUNG

Title (fr)

CLINKER DE CIMENT PORTLAND ET SON UTILISATION

Publication

EP 0793625 A1 19970910 (DE)

Application

EP 95936947 A 19951117

Priority

• DE 9501621 W 19951117
• DE 4441614 A 19941123

Abstract (en)

[origin: DE4441614C1] Portland cement clinker contains (i) a clinker phase (in wt.%) comprising 40-80 (3CaO.SiO2), less than 20 (4CaO.Al2O3), less than 30 (2CaO.SiO2), and less than 20 (3CaO.Al2O3); and (ii) 1.0-3.0 wt.%SO3. The clinker is obtd. by calcining a mixt. contg. CaO, SiO2, Al2O3 and Fe2O3 by adding an additive contg. SO3 at 120-1350 deg C.

IPC 1-7

C04B 7/04

IPC 8 full level

C04B 7/04 (2006.01); C04B 7/02 (2006.01)

CPC (source: EP US)

C04B 7/02 (2013.01 - EP US)

Citation (search report)

See references of WO 9615996A1

Designated contracting state (EPC)

AT BE CH ES FR GB GR IT LI

DOCDB simple family (publication)

DE 4441614 C1 19960404; AU 3922395 A 19960617; CA 2205839 A1 19960530; CN 1173165 A 19980211; CZ 151997 A3 19970917; EP 0793625 A1 19970910; HU T77272 A 19980302; JP H10512841 A 19981208; PL 320346 A1 19970929; US 5851282 A 19981222; WO 9615996 A1 19960530

DOCDB simple family (application)

DE 4441614 A 19941123; AU 3922395 A 19951117; CA 2205839 A 19951117; CN 95197415 A 19951117; CZ 151997 A 19951117; DE 9501621 W 19951117; EP 95936947 A 19951117; HU 9701803 A 19951117; JP 51644696 A 19951117; PL 32034695 A 19951117; US 84964197 A 19970718