公开(公告)号：EP2254848B1

公开(公告)日：2013-04-10

申请号：EP09709005.4

申请日：2009-02-05

申请人： Imi Tami Institute For Research And Development Ltd.

发明人： WEISSMAN, Aharon ,  GORELIK, Yelena ,  VULTZ, Eyal Yehihel ,  PERLE, Dorit ,  MASRI, Basam ,  SHIKOLSKY, Gideon ,  HANUKA, Ezrah ,  FRIM, Ron ,  GINZBERG, Eyal

IPC分类号： C04B22/12 ,  C04B28/34

CPC分类号： C04B28/34 ,  C04B22/126 ,  C04B2103/14 ,  C04B2103/24 ,  Y02W30/92 ,  C04B14/043 ,  C04B14/06 ,  C04B14/304 ,  C04B18/08

公开(公告)号：EP2254848A1

公开(公告)日：2010-12-01

申请号：EP09709005.4

申请日：2009-02-05

申请人： Imi Tami Institute For Research And Development Ltd.

发明人： WEISSMAN, Aharon ,  GORELIK, Yelena ,  VULTZ, Eyal Yehihel ,  PERLE, Dorit ,  MASRI, Basam ,  SHIKOLSKY, Gideon ,  HANUKA, Ezrah ,  FRIM, Ron ,  GINZBERG, Eyal

IPC分类号： C04B28/34

CPC分类号： C04B28/34 ,  C04B22/126 ,  C04B2103/14 ,  C04B2103/24 ,  Y02W30/92 ,  C04B14/043 ,  C04B14/06 ,  C04B14/304 ,  C04B18/08

摘要： A method is provided for advantageously altering the rate of hardening of a magnesium silico-phosphate cement (MSPC). Addition of on the order of 1% of an [MF6]n- salt or acid to an MSPC, obtained by adding the salt or acid either directly to the dry mix or to the water used to effect hydraulic hardening of the cement, significantly alters the hardening rate without adversely affecting the physical properties of the final set cement. In preferred embodiments, Na2TiF6 and/or K2TiF6 are used as retardants, while K3AlF6 is used as an accelerant. Other embodiments use M'nMF6 compounds wherein M' is an alkali metal, an alkaline earth metal, or H, and M is chosen from inter alia Ti (n = 2), Zr (n = 2), Si (n = 2), P (n = 1), Al (n = 3), and Sb (n = 1).

公开(公告)号：EP2707338A1

公开(公告)日：2014-03-19

申请号：EP11865432.6

申请日：2011-11-30

申请人： IMI Tami Institute For Research And Development Ltd.

发明人： VULTZ, Eyal, Yehiel ,  WEISSMAN, Aharon ,  MASSRI, Bassam ,  GINZBERG, Eyal ,  FRIM, Ron

IPC分类号： C04B12/02

CPC分类号： C04B28/34 ,  C04B14/304 ,  C04B20/1055 ,  C04B20/107 ,  C04B22/126 ,  C04B2103/20 ,  C04B14/043 ,  C04B14/06 ,  C04B14/068

摘要： A mixture suitable for use in forming a magnesium silico-phosphate cement is disclosed. The mixture comprises particles of MgO at least partially coated with an additive adapted to alter the setting time of said cement cast; a phosphate salt or acid chosen that will provide a binder product characterized by the empirical chemical formula MMgPO
4 ⋅6H
2 O; and an aggregate phase chosen from the group containing (a) CaSiO
3 , (b) MgSiO
3 , (c) SiO
2 , (d) fly ash, (e) sea sand, and (f) any combination thereof. Coating the MgO particles provides better control of the alteration of the setting time and better physical properties of the set cement. Methods for making the mixture and for preparing a cement cast based on the mixture are also disclosed.