【摘要】 成功制备了废旧地毯纤维混凝土材料。通过红外光谱仪、万能试验机和扫描电子显微镜等手段研究了废旧地毯纤维的化学组成、力学性能和形貌,并探讨了不同废旧地毯纤维掺量对混凝土抗裂、抗压和抗渗性能的影响,在性能及工艺成本方面与聚丙烯纤维混凝土进行比较和分析。结果表明:从地毯中可回收大量廉价的聚丙烯纤维,可用于制备纤维混凝土;与普通混凝土相比废旧地毯纤维混凝土渗水高度降低60%左右,减裂效果可提高约70%,具有与聚丙烯纤维混凝土相同的抗渗减裂效果。利用废旧地毯纤维制备纤维混凝土材料,既可以减少环境污染,变废为宝,又可改善普通混凝土的抗渗和抗裂性能,具有良好的经济效益和社会效益。更多还原

【Abstract】 The wasted carpet fibers reinforced concretes were successfully prepared.The chemical compositions,mechanical properties and morphology of fibers were characterized by FTIR,universal machines and SEM,respectively.The impermeability,anti-cracking property,compression performance and costs of wasted carpet fibers reinforced concrete were evaluated compared with those of the ordinary concrete and the polypropylene fibers reinforced concrete.The results indicated that the wasted carpet contained lots of cheap polypropylene fibers which could be used to prepare fibers reinforced concrete.The impermeability and anti-cracking properties of reinforced concretes could be increased by nearly 60% and 70% compared with those of the ordinary concretes,respectively.Wasted carpet fibers could endow the concrete impermeability and anti-cracking properties which were similar to the concrete reinforced with polypropylene fibers.The uses of wasted carpet fibers in concrete could not only could change the waste into valuables and reduced the environmental pollution,but could improve the impermeability,anti-cracking and anti-compressive properties.So,the uses of wasted carpet fibers in concrete would provide good economic and social benefits.更多还原