Hesam Ghanbari, Seyed Mohammad Fattahi, Abbas Soroush, Alireza Komaei
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引用次数: 0
Abstract
The present investigation explores the potential of alkali-activated slag as a novel method for stabilizing and enhancing the mechanical properties of loose sandy soils. To achieve this, unconfined compression tests were performed on samples with varying slag content, activator solution parameters, and curing conditions. A predictive model was developed to estimate UCS based on these factors. The microstructural analyses using field emission scanning electron microscopy and energy-dispersive X-ray spectroscopy elucidated the development of gels contributing to improved mechanical properties of the treated samples. Additionally, UCS tests demonstrated that increased slag content, activator concentration, and curing time significantly increase strength, stiffness, and brittleness. Notably, the findings show that samples treated with alkali-activated slag achieved substantially higher strength than those treated with ordinary Portland cement. These findings highlight the superior efficiency of this method in soil stabilization.
本研究探讨了碱激活炉渣作为一种新方法稳定和提高松散砂土机械性能的潜力。为此,对不同炉渣含量、活化剂溶液参数和固化条件的样品进行了无约束压缩试验。根据这些因素建立了一个预测模型来估算 UCS。使用场发射扫描电子显微镜和能量色散 X 射线光谱进行的微观结构分析阐明了凝胶体的发展有助于改善处理后样品的机械性能。此外,UCS 测试表明,增加炉渣含量、活化剂浓度和固化时间可显著提高强度、刚度和脆性。值得注意的是,研究结果表明,使用碱激活矿渣处理过的样品的强度大大高于使用普通硅酸盐水泥处理过的样品。这些发现凸显了这种方法在稳定土壤方面的卓越功效。
期刊介绍:
King Fahd University of Petroleum & Minerals (KFUPM) partnered with Springer to publish the Arabian Journal for Science and Engineering (AJSE).
AJSE, which has been published by KFUPM since 1975, is a recognized national, regional and international journal that provides a great opportunity for the dissemination of research advances from the Kingdom of Saudi Arabia, MENA and the world.