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MORTAR MODIFIED WITH RUBBER TIRE

机译:橡胶轮胎改性的砂浆

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摘要

Building construction has caused great impact on the environment, but it can bring benefits to the population in general, and can also take measures to repair environment. Waste tire disposal is a worldwide problem and has caused worry for public administrators, researchers and environmentalists. The use of the crumb rubber tire remaining from the retreading process can minimize the environmental impact and help the natural resources. The component production in building is viable, as well as contributing to sustainable development. The aim of this work was to investigate the possibility of the use of this waste in the civil construction as a partial replacement for fine aggregates in modified latex mortar applied as an alternative material that can be used in the production of masonry panels. Plain mortar was produced with Portland cement, sand and water. The Simplex-Centroid Design was used as an instrument to optimize the mortar composition through the simulation of the mathematical model. The efficiency of the model was verified by the analysis of variance (ANOVA). A Design-Expert 5 Stat Ease software package was used to determine the influence variables. Properties of the mortar were examined in the fresh and hardened state. The composite specimens were tested in consistency index by Flow Table Test, water absorption, compressive strength and impact. The fractured composite micrographs were obtained by SEM in a LEO1450VP equipment using secondary electrons mode. The incorporation of this rubber tire into mortars showed a reduction in compressive strength while the impact increased. Based on impact tests, it was observed that the samples with rubber tire were more effective in absorbing the impact energy than other mortars. The results from this study showed good potential for recycling the rubber tire and for developing an environmental alternative that is economically viable.
机译:房屋建筑对环境造成了很大的影响,但它可以给整个人口带来好处,还可以采取措施修复环境。废轮胎处理是一个世界性的问题,已引起公共管理人员,研究人员和环保主义者的担忧。使用翻新过程中剩余的面包屑橡胶轮胎可以最大程度地减少对环境的影响并有助于自然资源。建筑中的零部件生产是可行的,并且有助于可持续发展。这项工作的目的是研究在民用建筑中使用这种废物的可能性,以部分替代改良的乳胶砂浆中的细骨料,该乳胶砂浆用作可用于生产砌体面板的替代材料。用硅酸盐水泥,沙子和水生产普通砂浆。单纯形-中心设计被用作通过数学模型仿真来优化砂浆成分的工具。通过方差分析(ANOVA)验证了模型的效率。使用Design-Expert 5 Stat Ease软件包来确定影响变量。在新鲜和硬化状态下检查砂浆的性能。通过流表测试,吸水率,抗压强度和冲击力测试了复合材料样品的稠度指数。断裂的复合显微照片是使用二次电子模式通过SEM在LEO1450VP设备中获得的。将该橡胶轮胎掺入砂浆中显示出抗压强度降低,而冲击力增加。根据冲击试验,观察到带有橡胶轮胎的样品比其他砂浆更有效地吸收冲击能量。这项研究的结果表明,回收橡胶轮胎和开发经济上可行的环保替代品具有良好的潜力。

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