| abstract |
FIELD: chemistry.SUBSTANCE: invention relates to use of material capable of hardening at low temperatures, as repair material for profile restoration. Repair material for profile restoration capable of hardening at low temperatures is characterized by the following properties: contains 100 weight parts of composition (A) containing resins which are polymerised by a radical mechanism, 0.1–10 weight parts of aromatic tertiary amine (C-1) containing hydroxyl group, 0.1–10 weight parts of organic peroxide (D) and 1.0–500 weight parts of inorganic filler (E). At that, composition (A) containing polymers polymerising by a radical mechanism, contains at least one type of resin (A-1), which is polymerisable by a radical mechanism, selected from a group consisting of vinyl ester resin, urethane (meth) acrylate resin and (meth) acrylate resin polyether, and unsaturated monomer (A-2) polymerising by radical mechanism, wherein there is at least two or more (meth)acryloyl groups per molecule. Profile to be restored represents at least one profile selected from group consisting of concrete, asphalt-concrete structures and mortar. Said repair material can harden even at such low air temperature as -25 °C. Also described is a profile recovery method using said material.EFFECT: technical result is providing repair material, capable of hardening in short time intervals even at very low ambient temperatures (-25 °C), which is characterized by excellent performance and compression strength.11 cl, 1 tbl, 17 ex |