植物纤维对水泥基材料性能的影响

Effect of plant fiber on the properties of cement based materials

针对我国水稻秆、玉米秆等农业废弃物处理难的问题,提出了利用农业废弃物中的纤维性材料制备新型墙体材料的设想,并通过对化学改性方法所提取的植物纤维对P.O425水泥的凝结时间、抗压抗折强度的影响以及减水效果进行研究分析,初步阐述了利用碱氧法处理的农业废弃物所提取的植物纤维对水泥基本性能的影响。结果表明:制纤废液对水泥具有较明显的缓凝效果;同时,该方法所提取的植物纤维对水泥的抗压抗折强度提高30%～50%,增强效果与6mm聚丙烯纤维相近;另外,该制浆废液对水泥几乎没有减水效果。

The paper brings forward to produce the such as rice straw, corn stalks and other agricultural chemical modification methods on the setting time, consumption of P.O 425 cement. new wall materials by waste agricultural fibrous materials, wastes; researches the effect of plant fiber extracted by the compressive and flexural strength, and reduction of water