Global Patent Index - EP 0732985 A1

EP 0732985 A1 19960925 - PROCESS AND DEVICE FOR INCORPORATING AN ADDITIVE RAW ASH MIXTURE IN RAW MATERIALS FOR CONCRETE PRODUCTION

Title (en)

PROCESS AND DEVICE FOR INCORPORATING AN ADDITIVE RAW ASH MIXTURE IN RAW MATERIALS FOR CONCRETE PRODUCTION

Title (de)

VERFAHREN UND VORRICHTUNG ZUR EINARBEITUNG EINER UNSORTIERTEN BEIMISCHUNG IN DIE ROHSTOFFE FÜR EINEN BETON

Title (fr)

PROCEDE ET DISPOSITIF POUR L'INCORPORATION DANS LES MATIERES PREMIERES D'UN BETON D'UN MELANGE ADDITIONNEL TOUT-VENANT

Publication

EP 0732985 A1 19960925 (FR)

Application

EP 95902835 A 19941206

Priority

  • FR 9401418 W 19941206
  • FR 9314660 A 19931207

Abstract (en)

[origin: WO9515839A1] The object of the invention is a facility and process for incorporating an additive mixture of wet ash in the raw materials for producing concrete, wherein the water content of the final mixture must be controlled. The process is characterized in that the wet ash heap (1) is surface processed by mechanical means to separate the component elements of the additive mixture; said additive mixture is mechanically converted (4, 6), without adding water, into a homogenous mixture; upon each addition of said mixture, its weight and water content are measured; and the amount of supplementary water required to provide the predetermined final water content of said final mixture is then injected. The invention is useful for the production of concrete.

IPC 1-7

B28B 17/02; B28C 7/04; C04B 18/06; C04B 40/00

IPC 8 full level

B28B 17/02 (2006.01); B28C 7/04 (2006.01); C04B 18/06 (2006.01); C04B 40/00 (2006.01)

CPC (source: EP)

B28B 17/02 (2013.01); B28C 7/0409 (2013.01); C04B 18/06 (2013.01); C04B 40/0032 (2013.01); Y02W 30/91 (2015.05)

Citation (search report)

See references of WO 9515839A1

Designated contracting state (EPC)

BE DE ES FR GB IT

DOCDB simple family (publication)

WO 9515839 A1 19950615; EP 0732985 A1 19960925; FR 2713537 A1 19950616; FR 2713537 B1 19960105

DOCDB simple family (application)

FR 9401418 W 19941206; EP 95902835 A 19941206; FR 9314660 A 19931207