2023 Volume 29 Issue 73 Pages 1356-1361
An axial composite fire resistive covering method for steel beams was developed by combining intumescent fireproof coating and other fire resistive covering materials. Four types of fire resistive covering materials to be combined with intumescent coating were selected. Fire resistance tests were conducted on steel beams covered with these fire resistive materials. As the result, 1-hour and 2-hour fire resistance was achieved with a combination of intumescent coating and intumescent coating or calcium silicate board, and 1-hour fire resistance was achieved with a combination of intumescent coating and wrapping type rockwool blanket or sprayed rockwool.
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