Expansive Soil Stabilization Using Steel Factory Dust

IF 1 Q4 ENGINEERING, CIVIL

Jordan Journal of Civil Engineering Pub Date : 2024-01-01 DOI:10.14525/jjce.v18i1.11

Z. Abdalqadir

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引用次数: 0

Abstract

One of the geotechnical-engineering roles is soil stabilization, because it affects the long-term strength and functionality of structures. For suitability and durability of expansive soils for construction projects, shear strength, bearing capacity and other characteristics can be enhanced through the stabilization process. This study is focused on the effects of steel factory dust (SFD) as an additive on the improvement of the undesired geotechnical properties of expansive soil (CH soil). A series of laboratory tests were conducted on intact and treated samples. SFD was added by 0, 2, 4, 6, 8 and 10% to the dry soil. The conducted tests are consistency, specific-gravity, modified Proctor compaction, swelling-pressure and -percent and unconfined compression tests. The addition of SFD reduced the values of liquid and plastic limits, plasticity index, modulus of elasticity and allowable bearing capacity. Significantly, the 10% SFD addition significantly reduced swelling percent and pressure by 26.8% and 25.4%, respectively while notably increasing the unconfined compressive strength (UCS) from 475 MPa to 629 MPa. SFD was found to be a successful waste material in improving expansive soil by using 10% as the best addition percent, which usefully saves the environment. KEYWORDS: Expansive soil, Stabilization, Steel factory dust, Swelling, Unconfined compressive strength. INTRODUCTIO

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利用钢铁厂粉尘稳定膨胀性土壤

岩土工程的作用之一是稳定土壤，因为它影响结构的长期强度和功能。为了使膨胀性土壤适用于建筑工程并具有耐久性，可以通过稳定过程提高其抗剪强度、承载力和其他特性。本研究的重点是钢厂粉尘（SFD）作为添加剂对改善膨胀土（CH 土）不良岩土特性的影响。对完整样本和处理过的样本进行了一系列实验室测试。在干土中分别添加了 0%、2%、4%、6%、8% 和 10%的 SFD。所进行的测试包括稠度、比重、改良 Proctor 压实度、膨胀压力和百分比以及无约束压缩试验。添加 SFD 后，液限和塑限、塑性指数、弹性模量和容许承载力的值都有所降低。值得注意的是，添加 10% SFD 后，膨胀率和压力分别显著降低了 26.8% 和 25.4%，而无侧限抗压强度（UCS）则从 475 兆帕增至 629 兆帕。研究发现，SFD 是一种成功的改良膨胀性土壤的废弃材料，其最佳添加量为 10%，可有效保护环境。关键词：膨胀土稳定化钢厂粉尘膨胀无侧限抗压强度引言

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Jordan Journal of Civil Engineering ENGINEERING, CIVIL-

CiteScore

2.10

自引率

27.30%

发文量

期刊介绍： I am very pleased and honored to be appointed as an Editor-in-Chief of the Jordan Journal of Civil Engineering which enjoys an excellent reputation, both locally and internationally. Since development is the essence of life, I hope to continue developing this distinguished Journal, building on the effort of all the Editors-in-Chief and Editorial Board Members as well as Advisory Boards of the Journal since its establishment about a decade ago. I will do my best to focus on publishing high quality diverse articles and move forward in the indexing issue of the Journal.