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石灰稳定油污污染土壤的长期性能和耐用性

Hadis Nasiri¹, Navid Khayat¹, Ahad Nazarpour²

¹Department of Civil Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.

|January 30, 2025

概括

石灰稳定可显著提高油污污染土壤的长期强度和耐用性,长达一年. 这种可持续的方法改善了土壤性能,对石油丰富地区的基础设施至关重要.

科学领域:

地质技术工程地质技术工程
环境工程环境工程
材料科学材料科学材料科学

背景情况:

石油泄漏对土壤强度构成风险,特别是在富含石油的地区.
现有的石油污染土壤研究往往缺乏长期 (365天) 的性能数据.
评估长期的土壤行为对于基础设施的稳定性至关重要.

研究的目的:

评估油污污染土壤上石灰稳定剂的长期有效性.
调查不同含量 (0-9%) 和固化期 (1-365天) 对土壤特性的影响.
弥合稳定石油污染土壤长期绩效评估方面的知识差距.

主要方法:

用4%,7%和10%油污污染的土壤进行实验室测试.
用0%,3%,6%和9%的石灰含量进行处理.
测量无限制压力强度 (UCS),加利福尼亚轴承比率 (CBR) 和超过365天的湿干耐用性.
微结构分析以确定稳定化合物.

主要成果:

6%的石灰含量显著改善了长期的UCS (16.6%-24.5%的增益) 和湿干耐用性.
强度和耐久性的改善持续了长达365天.
微结构分析证实了--酸盐-酸盐 (C-A-S-H) 阶段的形成.

结论:

石灰稳定是一种可行和可持续的解决方案,用于长期管理受油污染的土壤.
这种方法提高了土壤的强度和耐用性,减少了对原始材料的需求.
在受石油泄漏影响的地区促进可持续的基础设施发展.

关键词:

机械性质机械性质微观结构的微观结构油污污染的土壤被污染了扫描电子显微镜扫描电子显微镜没有限制的压力强度.湿干循环是一个循环.

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