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微生物改性基石纤维协同凝固Pisha砂岩:关于机械性能和机制的研究

Bingkun Ma¹, Xiaoli Li¹, Zhuojun Feng¹

¹College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 10018, China; State Key Laboratory of Water Engineering Ecology and Environment in Arid Area, Inner Mongolia Agricultural University, China.

Journal of microbiological methods

|February 16, 2026

概括

这项研究引入了一种新的土壤强化技术,使用微生物诱导的酸盐沉 (MICP) 与修饰的玄武岩纤维用于Pisha砂岩地区. 最佳的纤维剂量显著提高了强度和碳酸的生产,为土壤稳定提供了可持续的解决方案.

科学领域:

地质技术工程地质技术工程
环境科学环境科学
材料科学材料科学材料科学

背景情况:

皮沙砂岩地区的土壤侵蚀带来了重大的环境和工程挑战.
现有的土壤增强方法可能缺乏效率或可持续性.
微生物诱导的石沉 (MICP) 显示出土壤固化的前景.

研究的目的:

开发和评估一种新的增强技术,将MICP与Pisha砂岩的改性玄武岩纤维相结合.
研究改性玄武岩纤维含量对碳酸转化和机械性能的影响.
分析玄武岩纤维的表面修饰机制及其与MICP的相互作用.

主要方法:

使用新的表面修饰工艺制备玄武岩纤维.
制造经过修改的玄武岩纤维-Pisha砂岩复合材料.
测试机械性能 (不受限制的压力强度,性) 和碳酸生产.
分析纤维表面形态及其在微生物附着和石核形成中的作用.

主要成果:

改性玄武岩纤维的最佳剂量被发现为0.4%的圆柱形标本 (50x100毫米).
与对照组相比,这种最佳剂量增加了不受限制的压力强度2.88倍 (至2.75 MPa),碳酸产量增加了1.87倍.
纤维表面的修改增强了微生物的附着,尿酶效率和CaCO3核化,从而增加了产量和石沉的均性.
观察到MICP和改性玄武岩纤维之间的协同效应,增强了土壤固化和强化.

结论:

结合MICP和改性玄武纤维技术,为Pisha砂岩土壤强化和生态恢复提供了一种绿色,高效和可持续的解决方案.
优化纤维剂量对于最大限度地提高土壤性和防止堆积至关重要.
该研究阐明了一种协同增强机制,为先进的土壤稳定策略铺平了道路.

关键词:

基岩纤维修改基岩纤维的修改松散软的皮沙砂石松散软的皮沙砂石在MICP中,MICP是MICP.机械性质机械性质协同固化是一种协同固化的方法.

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