A review on cement-based fire-resistive materialsAbstract:Cement-based fire resistive materials exhibit good thermal insulation and anti-spalling properties and adequate residual mechanical properties after elevated temperature, which are promising on the fields of structural fire-resistance applications and occupy price advantage. Based on these three types of performances, the paper at hand reviewed various corresponding influencing factors and relevant theories of cement-based fire-resistive materials. The effects of various porous aggregates on thermal insulation performance were investigated. The influences of fibers on spalling resistance performance were analyzed. The effect of fly ash on residual mechanical properties after elevated temperatures was summarized. Then various conduction theories and corresponded analytical functions for predicting effective thermal conductivity and different anti-spalling mechanisms of fibers were listed. And the remaining challenges of development of cement-based fire resistive materials were finally analyzed.Key words:Cement-based composites, fire-resistive, porous aggregates, spalling resistance, residual mechanical properties, theoretical study
A review on cement-based fire-resistive materialsAbstract:Cement-based fire resistive materials exhibit good thermal insulation and anti-spalling properties and adequate residual mechanical properties after elevated temperature, which are promising on the fields of structural fire-resistance applications and occupy price advantage. Based on these three types of performances, the paper at hand reviewed various corresponding influencing factors and relevant theories of cement-based fire-resistive materials. The effects of various porous aggregates on thermal insulation performance were investigated. The influences of fibers on spalling resistance performance were analyzed. The effect of fly ash on residual mechanical properties after elevated temperatures was summarized. Then various conduction theories and corresponded analytical functions for predicting effective thermal conductivity and different anti-spalling mechanisms of fibers were listed. And the remaining challenges of development of cement-based fire resistive materials were finally analyzed.Key words:Cement-based composites, fire-resistive, porous aggregates, spalling resistance, residual mechanical properties, theoretical study<br>
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