Since the ratification of the Kyoto protocol by the EU in 2002, Members States have committed themselves both to reducing their greenhouse gas emissions and to environmental sustainability, inter allia by using cements with alternative additions that incorporate industrial waste. In this paper, ionic mobility through a pozzolanic cement is studied. The cement contains substitutions of 10% and 20% rejected ballast waste and is prepared for railway infrastructure (slab or ballast less track) that is exposed to extreme climatic conditions (high thermal amplitudes and saline environments). Studied with CT-Scanning, ionic mobility can be observed along the cement pores. The cement with 10% substitutions of ballast waste was considered ideal to minimize ionic penetration and cement deterioration.

自2002年京都议定书通过欧盟的批准，会员国本身也都致力于减少温室气体排放和对环境可持续性，除allia通过使用替代的补充，纳入工业废物水泥。本文研究了通过火山灰胶结剂的离子迁移率。该水泥包含10％和20％的废弃压载废物的替代品，并准备用于暴露于极端气候条件（高温和高盐度环境）的铁路基础设施（平板或无压载轨道）。通过CT扫描研究，可以沿水泥孔隙观察到离子迁移率。具有10％替代压载废料的水泥被认为是理想的，以最大程度地减少离子渗透和水泥劣化。