通过改性藻酸盐提高泥土的机械性能和控制泥土的透性
Shuai Yin1, Xiaojian Xu2, Guohong Zeng1
1College of Civil Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
International journal of biological macromolecules
|October 20, 2025
概括
一种由基酸盐,烯胺和六甲烯酸制成的新型土壤稳定剂改善了泥土土壤的强度和稳定性. 与传统方法相比,这种基于生物聚合物的方法提供了增强的地质技术特性和耐用性.
科学领域:
- 地质技术工程 地质技术工程
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 粘土土壤具有固有的弱点,如低强度和不稳定性,对地质技术结构构成风险.
- 有效的土壤稳定对于提高土木工程项目的性能和寿命至关重要.
研究的目的:
- 开发和优化使用三元互穿透聚合物网络 (IPN) 的新型土壤稳定方法.
- 评估IPN稳定剂在改善泥土土壤工程性能方面的有效性.
主要方法:
- 使用藻酸盐 (SA),烯胺 (AM) 和六甲基烯酸盐 (HMA) 合成了一种三元互穿透的聚合物网络 (IPN).
- 一个直角的实验设计优化了IPN稳定器的组件比率.
- 进行了不受限制的压力强度 (UCS) 和干湿循环试验,以评估土壤稳定功效.
- 进行了液压导电性和微观结构分析,以评估材料特性和相互作用.
主要成果:
- 最佳的IPN混合物 (SA:AM:HMA在1.5:1.5:2.5) 显著提高了土壤强度,在28天固化后达到2405.69kPa的UCS.
- 土壤凝聚力增加了119.66kPa,而内部摩擦角度基本保持不变.
- 液压导电率降低到3.45 × 10-6厘米/秒,表明水阻力得到了改善.
- 稳定土壤表现出优越的耐用性,与SA-only治疗相比,微结构分析证实了增强的土壤-聚合物相互作用.
结论:
- 新型三元IPN通过创建强大的凝矩阵来有效地稳定泥土,从而将土壤颗粒结合在一起.
- 这种基于生物聚合物的稳定剂显著改善了土壤的机械性能,降低了液压导电性,并提高了耐用性.
- 这些发现为利用这种先进的聚合物系统在实际的泥土改善应用中提供了坚实的理论基础.
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