In a general form, the present invention relates to a two-component
mortar composition comprising a resin component (A) containing at least one radical-curable resin as a curable component, and a curing agent component (B) containing a curing agent for the radical-curable resin of the resin component (A), wherein the resin component (A) contains one or more
polymerization inhibitors selected from phenolic
polymerization inhibitors,
phenothiazine and / or its derivatives, stable organic radicals, oximes, and pyrimidinol or pyridinol compounds substituted at the
para position with respect to the hydroxyl group. In the
mortar composition, the resin component (A) further contains an alkoxyamine compound (I) of the formula R-O-N(R’R”) (wherein R is an
alkyl group and R’ or R” is an
organic group), and this compound has an
activation energy E for the homolysis of the R-O bond in the range of 100 kJ / mol to 120 kJ / mol a characterized by having the above. In another embodiment, the present invention relates to a two-component
mortar composition comprising a resin component (A) containing at least one radical-curable resin as a curable component, and a curing agent component (B) containing a curing agent for the radical-curable resin of the resin component (A), wherein the resin component (A) contains one or more
polymerization inhibitors selected from phenolic polymerization inhibitors,
phenothiazine and / or its derivatives, stable organic radicals, oximes, and pyrimidinol or pyridinol compounds substituted at the
para position with respect to the hydroxyl group, and the resin component (A) further contains an alkoxyamine compound of the following formula (II) TIFF2025518937000015.tif18150. Furthermore, the present invention relates to the use of a two-component mortar composition for chemically fixing fixing elements such as anchor threaded rods, reinforcing bars, threaded sleeves, and screws in drilled holes of building materials such as wood or mineral substrates.