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首页> 外文期刊>International Journal of Sustainable Materials and Structural Systems >On permeable porosity in bio-inspired fibre reinforced cementitious composites
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On permeable porosity in bio-inspired fibre reinforced cementitious composites

机译：仿生纤维增强水泥基复合材料的渗透性

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摘要

Permeability plays an important role in governing the durability of concrete in deleterious environments. Previous permeability tests using water as the permeating medium have indicated that the addition of cellulose fibre is effective in reducing water permeability both in the presence and absence of stress and thereby making concrete more durable. In this paper, further evidence was sought of pore-refinement in concrete reinforced with cellulose fibre using cryoporometry (CP) and mercury intrusion porosimetry (MIP) methods. Cryoporometry was carried out using a differential scanning calorimeter (DSC). Two volume fractions - 0.1% and 0.3% - of a treated cellulose fibre were investigated. The results indicated a definite pore refinement due to cellulose fibre addition and a related improvement in durability.
机译：渗透性在控制有害环境中混凝土的耐久性方面起着重要作用。先前使用水作为渗透介质的渗透性测试表明，添加纤维素纤维可有效降低存在和不存在应力的透水性，从而使混凝土更耐用。在本文中，寻求进一步的证据证明使用低温法（CP）和压汞法（MIP）可以细化纤维素纤维增强的混凝土中的孔。使用差示扫描量热仪（DSC）进行冷冻计量。研究了处理的纤维素纤维的两个体积分数-0.1％和0.3％。结果表明，由于添加了纤维素纤维，孔得到了一定的细化，并且耐久性得到了相应的改善。

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