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首页> 外文期刊>Journal of Sustainable Development >Cementitious Composites with Rubber Particles from Recycled Tyres: Physical and Mechanical Properties
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Cementitious Composites with Rubber Particles from Recycled Tyres: Physical and Mechanical Properties

机译：再生轮胎中含有橡胶颗粒的水泥基复合材料：物理和机械性能

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This work describes a statistical analysis of the mechanical properties of cementitious composites made with recycled rubber inclusions for sustainable structural applications. The rubber particles from recycled tyres were used as replacement of quartz inclusions in the mortars. A full factorial design (7122) was performed to investigate the effect provided by the rubber particles size and fraction on the physical and mechanical properties of the cementitious composites. The results show that the use of rubber particles reduces the overall density, compressive strength and modulus of elasticity, and increases the apparent porosity, water absorption and permeability. Large pores in the composites are present when large size particles are used. The low water/cement ratio adopted in this work did not allow a full hydration of the cementitious phase, which further reduced the overall mechanical performance. Some cementitious composite configurations have however shown acceptable mechanical properties for non-structural applications in civil engineering.
机译：这项工作描述了用再生橡胶夹杂物制成的胶结复合材料的机械性能的统计分析，以实现可持续的结构应用。再生轮胎中的橡胶颗粒被用来替代砂浆中的石英夹杂物。进行了全因子设计（7122），以研究橡胶颗粒尺寸和分数对胶凝复合材料的物理和机械性能的影响。结果表明，使用橡胶颗粒会降低总体密度，抗压强度和弹性模量，并增加表观孔隙率，吸水率和渗透率。当使用大尺寸颗粒时，复合材料中存在大孔。这项工作中采用的低水灰比无法使胶凝相完全水化，从而进一步降低了整体机械性能。但是，某些胶结复合材料配置对土木工程的非结构应用显示出可接受的机械性能。

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