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首页> 外文会议>RILEM Proceedings PRO 39; RILEM Symposium on Fibre-Reinforced Concretes(FRC) - BEFIB 2004 vol.1; 20040920-22; Varenna(IT) >EFFECT OF CHEMICAL-PHYSICAL INTERACTION BETWEEN GALVANIZED STEEL FIBRES AND CONCRETE
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EFFECT OF CHEMICAL-PHYSICAL INTERACTION BETWEEN GALVANIZED STEEL FIBRES AND CONCRETE

机译：镀锌钢纤维与混凝土之间化学-物理相互作用的影响

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摘要

Steel fibre reinforced concrete (SFRC) is a technology that has been known for several years and is recently becoming a topic of remarkable technical-scientific interest due to the improvement of the mechanical properties of concrete structures, where traditional transverse steel bars are replaced by the steel fibres themselves. However, common steel fibres are subjected to corrosion phenomena when concrete products are exposed to environments containing aggressive agents such as chlorides. These corrosion phenomena usually involve a surface layer important for the durability of concrete products and above all for aesthetic problems because brown rust appears externally. To reduce these problems, galvanized steel fibres can be used in place of the common steel fibres, but their interaction with the concrete could lead to an increase in the dimensions of structures due to concrete swelling. The interaction of galvanized steel fibres in concrete in several experimental conditions is the subject of this paper and the outlined conclusions are useful to explain this phenomenon.
机译：钢纤维混凝土（SFRC）是一项已获知多年的技术，由于混凝土结构的机械性能得到改善，钢纤维增强混凝土（SFRC）取代了传统的横向钢筋，因此最近成为一项具有重大科学技术意义的话题。钢纤维本身。但是，当混凝土产品暴露于含有腐蚀性物质（如氯化物）的环境中时，普通的钢纤维会遭受腐蚀现象。这些腐蚀现象通常涉及一个表面层，该表面层对于混凝土产品的耐用性尤其是美学问题至关重要，因为在外部会出现棕锈。为了减少这些问题，可以使用镀锌钢纤维代替普通钢纤维，但是由于混凝土膨胀，它们与混凝土的相互作用可能导致结构尺寸增加。镀锌钢纤维在几种试验条件下的相互作用是本文的主题，概述的结论对于解释这种现象是有用的。

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