Title:
CLINKER SUBSTITUTE
Document Type and Number:
WIPO Patent Application WO/2014/089592
Kind Code:
A1
Abstract:
The invention relates to a clinker substitute having the following composition: 31-48 % and preferably 38-46 % CaO, 25-40 % SiO2, and 13-24 % Al2O3. According to the invention, said substitute contains at least 1 %, preferably 3-14 % SO3 as sulphate which is burnt during the production of the clinker substitute. This increases the early strength. This effect is intensified if the clinker substitute has a Blaine fineness of at least 6,000 cm²/g and preferably at least 7,000 cm²/g. The clinker substitute portion preferably makes up 20-60 % of a cement.
Inventors:
NOVAK DENES (AT)
NOVAK EDITH (AT)
NOVAK EDITH (AT)
Application Number:
PCT/AT2013/050244
Publication Date:
June 19, 2014
Filing Date:
December 11, 2013
Export Citation:
Assignee:
NOVAK DENES (AT)
NOVAK EDITH (AT)
BAUMIT BETEILIGUNGEN GMBH (AT)
NOVAK EDITH (AT)
BAUMIT BETEILIGUNGEN GMBH (AT)
International Classes:
C04B28/06; C04B7/32
Domestic Patent References:
| WO2010070214A1 | 2010-06-24 | |||
| WO2011000972A1 | 2011-01-06 |
Foreign References:
| FR2873366A1 | 2006-01-27 | |||
| GB930368A | 1963-07-03 |
Attorney, Agent or Firm:
MÜLLNER, Martin et al. (AT)
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