LIME AND SILICEOUS BINDER, METHOD OF LIME AND SILICEOUS BINDER PRODUCTION AND METHOD OF MOULDING SAND PRODUCTION FOR EXTRUDED SILICATE ITEMS Russian patent published in 2009 - IPC C04B28/18 B82B3/00 C04B111/20 

FIELD: construction.

SUBSTANCE: as disclosed by the invention, the method of lime and siliceous binder production includes separate milling of caustic lime and quartz sand and their further mixing. Quartz sand is milled by wet method and as a result, highly concentrated suspension is produced with 12-20% humidity containing particles less 5 mcm 20-50% and at the following ratio of components, wt %: the above suspension (as dry substance) 15-25, caustic lime 75-85. Lime and siliceous binder is produced using the above described method. Method of moulding sand production is intended for manufacturing extruded silicate items. This method provides for mixing quartz sand with highly-concentrated suspension of 12-20% humidity and containing particles less 5 mcm 20-50%, which is made by wet milling of quartz sand. Next, this mixture is mixed up with caustic lime and further moistened until moulding humidity is achieved. All operation are conducted at the following ratio of components, wt %: quartz sand 70-84, the said lime and suspension at their ratio, wt % to be: lime 75-85 and suspension 15-25, 16-30. The invention is developed in dependant items.

EFFECT: improved quality of items.

6 cl, 2 ex, 6 tbl