FIRE-RESISTANT TWO-COMPONENT SYSTEM OF MORTAR BASED ON ALUMINA CEMENT FOR FIRE-RESISTANT CHEMICAL FIXATION OF ANCHORS AND BONDED REINFORCEMENT RODS AND ITS USE Russian patent published in 2020 - IPC C04B40/06 C04B28/06 C04B103/00 C04B111/00 C04B111/28 

FIELD: construction.

SUBSTANCE: group of inventions relates to a two-component mortar system, containing a curable component of an aqueous phase of alumina cement A or an aqueous phase of cement from calcium sulphoaluminate and a component of initiator B in an aqueous phase to initiate the curing process. Component A further contains at least one blocking agent selected from a group consisting of phosphoric acid, metaphosphoric acid, phosphorous acid and phosphonic acids, at least one plasticiser and water. Component B comprises an initiator, at least one setting retarder, at least one mineral filler and water. Besides, present invention relates to two-component system, which is ready for use, for fire-resistant chemical fixation of anchors and bonded reinforcement rods in mineral surfaces, such as structures made from brickwork, concrete, permeable concrete or natural stone, as well as to its use for fire-resistant chemical fastening of anchors and bonded reinforcement rods.

EFFECT: technical result is higher stability of storage of mortar, higher efficiency of anchors.

15 cl, 3 tbl