METHOD OF PROCESSING MORTAR AND MORTAR ADMIXTURE Russian patent published in 2011 - IPC C04B40/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of processing mortar. The method involves mixing dry mortar with water, a substance which affects setting rate of the mortar and a marker which creates a marked difference between marked and unmarked fresh mortar, that way distinguishing fresh mortar containing said substance, temporary maintenance of the marked difference, gradual disappearance of the marked difference and removal, at least considerably, of the marked difference between the marked and unmarked mortar. The invention relates to use of a substance which provides temporary marking of mortar, combined with mortar and a substance which affects setting rate of the mortar, for marking mortar which contains the substance which affects the setting rate of the mortar. The invention also relates to a mortar admixture which contains a substance which affects setting rate of mortar, and a marker which provides a marked difference between marked and unmarked fresh mortar. The marker is a substance which provides a marked difference temporarily and then loses colour such that the marked difference between the marked and unmarked mortar disappears.

EFFECT: high efficiency of making mortar and avoiding spots.

23 cl, 6 dwg, 1 tbl