Optimisation of Weak Soil Stabilisation with a Hydraulic Binder for Road Construction Subgrade

IF 0.5 Q4 ENGINEERING, CIVIL Architecture Civil Engineering Environment Pub Date : 2023-09-01 DOI:10.2478/acee-2023-0038
Wojciech Sorociak, Marcin Dobrzyński
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Abstract

Abstract One of the methods of strengthening the subgrade under the road pavement construction is its stabilization with a hydraulic binder. The technology of stabilization with binders is well known in the road engineering, however, it is still beneficial in terms of economical and organisational aspects while considering methods for improvement of the load-bearing capacity of the subsoil. The advantages of this technology are, among others, the possibility of using materials both from recycling and local materials, resulting in the possibility of waste production limitation by the use of weak material (soil) in place. The article presents a case study and the results of research obtained during the process of optimizing the thickness stabilized with a hydraulic binder. Comparative tests were carried out to reveal that non-chemical soil enhancement with the use of aggregate is as important as chemical one with the binder in terms of the quality of the final subgrade for road construction. The results were afterwards confirmed in field with use of heavy machines and full-scale soil stabilisation, leading to economic and environmental benefits.
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公路路基软弱土水力粘结剂的优化加固
摘要路面施工下的路基加固方法之一是液压粘结剂加固路基。粘结剂稳定技术在道路工程中是众所周知的,但在考虑提高地基承载能力的方法时,它在经济和组织方面仍然是有益的。这项技术的优点是,除其他外,可以使用回收材料和当地材料,从而可能通过使用现有的弱材料(土壤)来限制废物的产生。本文介绍了液压粘结剂稳定厚度优化过程中的实例和研究结果。对比试验表明,就道路建设的最终路基质量而言,使用骨料的非化学土壤加固与使用粘合剂的化学土壤加固同样重要。结果随后在使用重型机械和全面土壤稳定的现场得到证实,产生了经济和环境效益。
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