Durability characteristics of CO₂-cured cellulose fiber reinforced cement composites

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• 作者：Parviz Soroushian^a ; Jong-Pil Won^b ; Maan Hassan^c ; ^d ; ^{hassanm4@msu.edu} ; ^{maan_s_h@yahoo.co.uk}
• 关键词：Cellulose fibers ; Cement composites ; Carbonation ; Flexural strength ; Durability ; Microstructures
• 刊名：Construction and Building Materials
• 出版年：2012
• 期刊代码：42_09500618
• 类别：et
• 出版时间：September, 2012
• 卷：34
• 期：Complete
• 页码：44-53
• 文件大小：884 K

摘要

Cellulose fiber reinforced cement provides desired longevity, fire resistance and life-cycle economy, in addition to relatively high strength and toughness. An experimental investigation was conducted to assess the effect of accelerated CO₂ curing on the structure and durability of cellulose fiber cement composite.

Carbonated boards showed reduced capillary porosity, increased CaCO₃ content and improved bonding of the cement based matrix to cellulose fibers. Under diverse accelerated aging effects, carbonated boards also provided improved longevity and weathering resistance. This could be attributed to the chemical stability of carbonated products and their reduced capillary porosity.