FIRE-RESISTIVE COVERING STRUCTURE OF CONCRETE-PANEL WALL OPENING-SECTION REINFORCING MEMBER

摘要

PROBLEM TO BE SOLVED: To provide the fire-resistive covering structure of an opening-section reinforcing member for a concrete panel wall material having thin thickness and being simply executed. SOLUTION: In the fire-resistive covering structure of the opening-section reinforcing member for the concrete panel wall material in which a thermal- expansive fire-resistive layer is laminated on the surface exposed section of the opening-section reinforcing member for the concrete panel wall material, the thermal expansive fire-resistive layer is composed of a resin composition containing a thermal-expansive inorganic compound, and the coefficient of cubic expansion by heating for 30 min under the heating conditions of 50 kW/m<2> is 1.1-100 times.