发明公开
- 专利标题： WÄSSRIGE DISPERSIONEN GEFÄLLTER KIESELSÄUREN UND SILIKATE ZUR STEIGERUNG DER FRÜHFESTIGKEIT IN ZEMENTARTIGEN ZUBEREITUNGEN
- 专利标题（英）： Aqueous dispersions of silica for increasing early strength in cementitious preparations
- 专利标题（中）： 水性分散沉淀法白炭黑提高早期强度在水泥样制剂
-
申请号： EP07821404.6申请日： 2007-10-16
-
公开(公告)号： EP2079670A1公开(公告)日： 2009-07-22
- 发明人: FISCHER, Ulrich , WIELAND, Philipp , HÜBSCH, Christian , GRASSL, Harald , BECHER, Kerstin , SCHEUL,Stefanie , JETZLSPERGER, Eva
- 申请人： Evonik Degussa GmbH , Construction Research and Technology GmbH
- 申请人地址： Rellinghauser Strasse 1-11 45128 Essen DE
- 专利权人： Evonik Degussa GmbH,Construction Research and Technology GmbH
- 当前专利权人： Evonik Degussa GmbH,Construction Research and Technology GmbH
- 当前专利权人地址： Rellinghauser Strasse 1-11 45128 Essen DE
- 优先权： DE102006049524 20061020
- 国际公布： WO2008046831 20080424
- 主分类号： C04B14/06
- IPC分类号： C04B14/06 ; C04B40/00
摘要：
The invention relates to a dispersion which is free of binders and which contains silica and at least one flow agent, the silica being a precipitated silica having a surface area greater than 50 m²/g, the aggregates and/or agglomerates in the dispersion having an average diameter of less than 1 µm and the content of silica being 5 to 50% by weight, based on the total amount in the dispersion. The invention also relates to a method for producing the same and to its use as a concrete admixture in cementitous preparations.
公开/授权文献
信息查询
