公开(公告)号：AT141246T

公开(公告)日：1996-08-15

申请号：AT94105016

申请日：1994-03-30

Applicant: DEGUSSA ,  WOERMANN GMBH & CO KG

Inventor： BARTHEL WALTER ,  SUTEJ BRANIMIR ,  EICHLER KLAUS ,  WAGNER JOERG-PETER ,  HAUCK HANS GUENTER

IPC: C04B28/02 ,  E21F15/00 ,  C04B14/06 ,  C04B18/08 ,  C04B18/14 ,  C04B22/14 ,  C04B40/00

公开(公告)号：NO178630C

公开(公告)日：1996-05-02

申请号：NO905025

申请日：1990-11-20

Applicant: DEGUSSA

Inventor： MULLER KARL-HANS ,  BARTHEL WALTER

IPC: C08K3/36 ,  C08K3/04 ,  C08L95/00 ,  C10C3/14

Abstract: Bitumen granules which contain 0.5 to 15% by weight, preferably 6.1 to 15% by weight, of a re-powdering and separating agent such as, for example, synthetic silica or carbon black, are produced by atomising hot liquid bitumen in a known spray mixer and simultaneously introducing the repowdering and separating agent into the spray mixer via the cold air stream.

公开(公告)号：DE4313770A1

公开(公告)日：1994-11-03

申请号：DE4313770

申请日：1993-04-27

Applicant: DEGUSSA ,  WOERMANN GMBH & CO KG

Inventor： BARTHEL WALTER ,  SUTEJ BRANIMIR ,  EICHLER KLAUS ,  WAGNER JOERG-PETER ,  HAUCK HANS GUENTER

IPC: C04B28/02 ,  E21F15/00 ,  C04B40/00 ,  C04B14/04 ,  C04B18/00 ,  C04B28/04 ,  C04B28/24 ,  E21D11/10

公开(公告)号：FI90053B

公开(公告)日：1993-09-15

申请号：FI881272

申请日：1988-03-17

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS ,  BARTHEL WALTER

IPC: B28C7/04 ,  B05B7/14 ,  B28C7/06 ,  B65G53/32 ,  C04B14/06 ,  C04B28/04 ,  E04G21/02 ,  E04G21/04 ,  C04B22/08 ,  C04B28/02

Abstract: To apply a layer of spray concrete to a surface, a pumpable and sprayable spray concrete mix is made up from cement, aggregates, if appropriate additives, and water. A preset mass flow of the spray concrete mix is sprayed by means of a concrete delivery pump through a concrete transfer line to a spray gun with a device for introducing propellant air under a delivery pressure of several bar. The propellant air is laden with synthetic silica having a BET surface area of at least 25 m /g. With the propellant air, the synthetic silica is introduced into the mass flow of the spray concrete mix in such a quantity that the applied spray concrete undergoes a spontaneous temperature increase by a few degrees Kelvin immediately after the application. A spray gun for the process is also described.

公开(公告)号：NO169247B

公开(公告)日：1992-02-17

申请号：NO863597

申请日：1986-09-09

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS ,  BARTHEL WALTER ,  KUETHER JUERGEN

IPC: C08L95/00 ,  D06N5/00 ,  E04D5/02

公开(公告)号：IN169491B

公开(公告)日：1991-10-26

申请号：IN217CA1988

申请日：1988-03-14

Applicant: DEGUSSA

Inventor： MULLER KARL-HANS ,  BARTHEL WALTER

IPC: B28C7/04 ,  B05B7/14 ,  B28C7/06 ,  B65G53/32 ,  C04B14/06 ,  C04B28/04 ,  E04G21/02 ,  E04G21/04 ,  C04B28/00

Abstract: To apply a layer of spray concrete to a surface, a pumpable and sprayable spray concrete mix is made up from cement, aggregates, if appropriate additives, and water. A preset mass flow of the spray concrete mix is sprayed by means of a concrete delivery pump through a concrete transfer line to a spray gun with a device for introducing propellant air under a delivery pressure of several bar. The propellant air is laden with synthetic silica having a BET surface area of at least 25 m /g. With the propellant air, the synthetic silica is introduced into the mass flow of the spray concrete mix in such a quantity that the applied spray concrete undergoes a spontaneous temperature increase by a few degrees Kelvin immediately after the application. A spray gun for the process is also described.

公开(公告)号：ZA908780B

公开(公告)日：1991-08-28

申请号：ZA908780

申请日：1990-11-01

Applicant: DEGUSSA

Inventor： MULLER KARL-HANS ,  KARL-HANS MULLER ,  BARTHEL WALTER ,  WALTER BARTHEL

IPC: C08K3/36 ,  C08L95/00 ,  C08K3/04 ,  C10C3/14 ,  C08L ,  C08J

Abstract: Bitumen granules which contain 0.5 to 15% by weight, preferably 6.1 to 15% by weight, of a re-powdering and separating agent such as, for example, synthetic silica or carbon black, are produced by atomising hot liquid bitumen in a known spray mixer and simultaneously introducing the repowdering and separating agent into the spray mixer via the cold air stream.

公开(公告)号：ZA9008780B

公开(公告)日：1991-08-28

申请号：ZA9008780

申请日：1990-11-01

Applicant: DEGUSSA

Inventor： MULLER KARL-HANS ,  KARL-HANS MULLER ,  BARTHEL WALTER ,  WALTER BARTHEL

IPC: C08K3/04 ,  C08K3/36 ,  C08L95/00 ,  C10C3/14 ,  C08L ,  C08J

CPC classification number: C10C3/14

公开(公告)号：NO905025A

公开(公告)日：1991-06-24

申请号：NO905025

申请日：1990-11-20

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS ,  BARTHEL WALTER

IPC: C08K3/04 ,  C08K3/36 ,  C08L95/00 ,  C10C3/14

CPC classification number: C10C3/14

公开(公告)号：FI881272A0

公开(公告)日：1988-03-17

申请号：FI881272

申请日：1988-03-17

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS ,  BARTHEL WALTER

IPC: B28C7/04 ,  B05B7/14 ,  B28C7/06 ,  B65G53/32 ,  C04B14/06 ,  C04B28/04 ,  E04G21/02 ,  E04G21/04 ,  C04B

Abstract: To apply a layer of spray concrete to a surface, a pumpable and sprayable spray concrete mix is made up from cement, aggregates, if appropriate additives, and water. A preset mass flow of the spray concrete mix is sprayed by means of a concrete delivery pump through a concrete transfer line to a spray gun with a device for introducing propellant air under a delivery pressure of several bar. The propellant air is laden with synthetic silica having a BET surface area of at least 25 m /g. With the propellant air, the synthetic silica is introduced into the mass flow of the spray concrete mix in such a quantity that the applied spray concrete undergoes a spontaneous temperature increase by a few degrees Kelvin immediately after the application. A spray gun for the process is also described.