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Compatibilization of recycled rubber aggregate in mortar
Materials and Structures ( IF 3.8 ) Pub Date : 2020-02-17 , DOI: 10.1617/s11527-020-1456-4
Diego David Pinzón Moreno , Sebastião Ribeiro , Clodoaldo Saron

The incorporation of rubber aggregates from tire wastes into mortar is a way to reach new properties of materials based on Portland cements and to generate alternatives for the mechanical recycling of tire rubber waste. However, the rubber aggregates present distinct chemical characteristics when compared to the others mortar components, leading to a low interface interaction between the rubber and the cementitious matrix and consequent reduction of mechanical properties of the material. Thus, the aim of this study was to evaluate the compatibilization in rubberized mortar, using unsaturated polyester resin as coupling agent to cover the rubber particles and chemically bond them to the others mortar components. The compatibilization methods employing the adhesion systems rubber–sand, rubber–cement and rubber–sand–cement were analysed and the compatibilized materials were characterized by mechanical test and scanning electron microscopy. The compatibilization caused positive changes in the rubberized mortar, generating perspectives for development and application of the material.

中文翻译:

再生胶骨料在砂浆中的增容

将轮胎废料中的橡胶骨料掺入砂浆中是实现基于波特兰水泥的材料的新特性的一种方式,并为轮胎橡胶废料的机械回收提供替代方案。然而,与其他砂浆成分相比,橡胶骨料呈现出不同的化学特性,导致橡胶和水泥基体之间的界面相互作用低,从而降低了材料的机械性能。因此,本研究的目的是评估在橡胶砂浆中的相容性,使用不饱和聚酯树脂作为偶联剂覆盖橡胶颗粒并将它们化学键合到其他砂浆组分。采用橡胶-砂粘合体系的增容方法,对橡胶-水泥和橡胶-砂-水泥进行了分析,并通过力学试验和扫描电子显微镜对增容材料进行了表征。增容使橡胶砂浆发生了积极的变化,为材料的开发和应用提供了前景。
更新日期:2020-02-17
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