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首页> 外文期刊>Advances in materials science and engineering >Performance Evaluation of the Fiber-Reinforced Cement Composites Blended with Wheat Straw Ash
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Performance Evaluation of the Fiber-Reinforced Cement Composites Blended with Wheat Straw Ash

机译：纤维增强水泥复合材料与小麦吸管灰混合的性能评价

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摘要

Increasing demand for cement in the construction industry is posing a serious threat to the environment. This necessitates the utilization of supplementary cementitious materials such as silica fume, fly ash, rice husk ash, and wheat straw ash as a cement replacement material. Additionally, fiber-reinforced cement composites can be efficiently used in repair and rehabilitation works. In this study, we have investigated the performance of fiber-reinforced cement composites blended with wheat straw ash. Wheat straw ash has been proved to be an effective pozzolanic material. Cement was replaced by 20% (weight) wheat straw ash. Polypropylene fibers were added at a dosage of 0%, 0.5%, 1%, and 2% by weight of cement. Mortar specimens were fabricated and investigated for the compressive, flexure, and indirect tensile strengths, ultrasonic pulse velocity, chloride migration resistance, and carbonation resistance. The results demonstrate that the addition of fibers caused a reduction in the compressive strength, pulse velocity, chloride migration resistance, and carbonation resistance; however, flexure and indirect tensile strengths were significantly enhanced. Moreover, the incorporation of fine size wheat straw ash particles compensated the negative effect of fiber inclusion.
机译：增加对建筑业的水泥需求对环境构成严重威胁。这需要利用辅助水泥材料，例如硅粉，粉煤灰，稻壳灰和小麦草灰作为水泥更换材料。另外，可以有效地用于修复和康复工作的纤维增强水泥复合材料。在这项研究中，我们研究了纤维增强水泥复合材料的性能与小麦秸秆灰混合。被证明是小麦草灰是一种有效的波佐烷材料。水泥被20％（重量）麦吸管灰。将聚丙烯纤维的剂量加入0％，0.5％，1％和2重量％水泥的剂量。制造研制砂浆样品并研究了压缩，弯曲和间接拉伸强度，超声波脉冲速度，氯化物迁移阻力和碳化抗性。结果表明，添加纤维引起抗压强度降低，脉冲速度，氯化物迁移性和碳化抗性;然而，弯曲和间接拉伸强度显着增强。此外，掺入细尺寸小麦秸秆灰分颗粒补偿了纤维夹杂物的负面影响。

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