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    Experimental Investigation of the Residual Physical and Mechanical Properties of Foamed Concrete Exposed to High Temperatures

    Source: Journal of Materials in Civil Engineering:;2021:;Volume ( 033 ):;issue: 007::page 04021162-1
    Author:
    Xudong Chen
    ,
    Dandan Shi
    ,
    Jinhua Zhang
    ,
    Xiyuan Cheng
    DOI: 10.1061/(ASCE)MT.1943-5533.0003779
    Publisher: ASCE
    Abstract: Foamed concrete has been widely used in building energy conservation and insulation engineering, and its fire resistance is very important for buildings under fire. However, due to high porosity and permeability, the properties of foamed concrete are liable to change under high temperatures. Therefore, it is essential to evaluate the performance and functional evolution of foamed concrete at high temperatures. In this study, foamed concrete specimens with three different densities were treated at five different temperatures. The changes of macroscopic appearance and pore structure for the foamed concrete specimens under high temperature were analyzed to reveal the damage mechanism of temperature effects on foamed concrete. Besides, the high-temperature effect on the mass loss, water absorption, and compressive strength of the specimens were investigated. In addition, a prediction model of compressive strength for the foamed concrete considering the coupling effect of temperature and density was proposed.
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      Experimental Investigation of the Residual Physical and Mechanical Properties of Foamed Concrete Exposed to High Temperatures

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4270084
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    contributor authorXudong Chen
    contributor authorDandan Shi
    contributor authorJinhua Zhang
    contributor authorXiyuan Cheng
    date accessioned2022-01-31T23:38:30Z
    date available2022-01-31T23:38:30Z
    date issued7/1/2021
    identifier other%28ASCE%29MT.1943-5533.0003779.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4270084
    description abstractFoamed concrete has been widely used in building energy conservation and insulation engineering, and its fire resistance is very important for buildings under fire. However, due to high porosity and permeability, the properties of foamed concrete are liable to change under high temperatures. Therefore, it is essential to evaluate the performance and functional evolution of foamed concrete at high temperatures. In this study, foamed concrete specimens with three different densities were treated at five different temperatures. The changes of macroscopic appearance and pore structure for the foamed concrete specimens under high temperature were analyzed to reveal the damage mechanism of temperature effects on foamed concrete. Besides, the high-temperature effect on the mass loss, water absorption, and compressive strength of the specimens were investigated. In addition, a prediction model of compressive strength for the foamed concrete considering the coupling effect of temperature and density was proposed.
    publisherASCE
    titleExperimental Investigation of the Residual Physical and Mechanical Properties of Foamed Concrete Exposed to High Temperatures
    typeJournal Paper
    journal volume33
    journal issue7
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0003779
    journal fristpage04021162-1
    journal lastpage04021162-8
    page8
    treeJournal of Materials in Civil Engineering:;2021:;Volume ( 033 ):;issue: 007
    contenttypeFulltext
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