EP 1919841 A2 20080514 - A CONCRETE AND METHOD FOR MAKING SAME
Title (en)
A CONCRETE AND METHOD FOR MAKING SAME
Title (de)
BETON UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
BETON ET PROCEDE DE FABRICATION
Publication
Application
Priority
- NL 2006000387 W 20060726
- EP 05076741 A 20050728
- EP 06783856 A 20060726
Abstract (en)
[origin: EP1749803A1] The invention relates to a concrete, comprising a hydraulic binder, water, an aggregate, a mineral admixture and a chemical admixture acting as a superplasticiser, characterized in that said mineral admixture comprises colloidal silica and one or more of kaolin clay, metakaolin clay and montmorillonite clay with a blain value in the range of from 2000 to 8000 cm 2 /g, preferably from 3000 to 7000 cm 2 /g, more preferably from 3300 to 6000 cm 2 /g, still more preferably from 4000 to 5000 cm 2 /g. The invention also relates to a method for obtaining such a concrete, comprising the steps of: (a) mixing the hydraulic binder and clay; (b) adding a part of the water, in an amount sufficient to obtain an adequately manageable mass; (c) mixing said chemical admixture with said mass obtained in (b); (d) adding and mixing the collidal silica and the rest of the water with the mixture obtained in step (c); (e) mixing in the aggregates; and (f) hardening the mixture.
IPC 8 full level
C04B 14/10 (2006.01)
CPC (source: EP)
C04B 14/10 (2013.01); C04B 28/04 (2013.01); C04B 2111/62 (2013.01); Y02W 30/91 (2015.05)
Citation (search report)
See references of WO 2007013803A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1749803 A1 20070207; EP 1919841 A2 20080514; WO 2007013803 A2 20070201; WO 2007013803 A3 20070329
DOCDB simple family (application)
EP 05076741 A 20050728; EP 06783856 A 20060726; NL 2006000387 W 20060726