Experimental investigation on reducing the interface adhesion of concrete and formwork via electroosmosis approach

IF 6.2 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Developments in the Built Environment Pub Date : 2024-10-18 DOI:10.1016/j.dibe.2024.100561

Jinhui Yang , Shaojun Fu , Yi Yang , Kekuo Yuan , Zhengyong Zhang , Qiang Gao

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引用次数: 0

Abstract

Slipform construction is widely used for building deep-buried vertical and inclined shaft concrete linings due to its efficiency and cost advantages. The adhesion of the interface during demoulding is crucial for the efficiency and quality of slip form construction. In this paper, a novel approach is proposed to reduce the adhesion between concrete and formwork based on electroosmotic technology. A self-designed concrete electroosmotic demoulding device was developed to simulate the electroosmotic slip-form construction of the shaft lining. The variations in parameters such as current and permeability during electroosmosis were analyzed, and the impact of electroosmotic parameters on the adhesion and demoulding quality of concrete was investigated. The results indicate that the electroosmotic method can significantly reduce the adhesion. Concrete demoulding defects are significantly reduced and smoother after electroosmotic treatment. This study provides a scientific basis and technical support for optimizing concrete construction demoulding technology.

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通过电渗法减少混凝土和模板界面粘附力的实验研究

滑模施工因其效率和成本优势，被广泛用于建造深埋竖井和斜井混凝土衬砌。脱模过程中界面的附着力对滑模施工的效率和质量至关重要。本文提出了一种基于电渗技术的降低混凝土与模板之间粘附力的新方法。开发了一种自行设计的混凝土电渗脱模装置，用于模拟竖井衬砌的电渗滑模施工。分析了电渗过程中电流和渗透率等参数的变化，研究了电渗参数对混凝土附着力和脱模质量的影响。结果表明，电渗法能显著降低附着力。经电渗处理后，混凝土脱模缺陷明显减少，且更加光滑。这项研究为优化混凝土施工脱模技术提供了科学依据和技术支持。

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来源期刊

Developments in the Built Environment Multiple-

CiteScore

7.40

自引率

1.20%

发文量

审稿时长

22 days

期刊介绍： Developments in the Built Environment (DIBE) is a recently established peer-reviewed gold open access journal, ensuring that all accepted articles are permanently and freely accessible. Focused on civil engineering and the built environment, DIBE publishes original papers and short communications. Encompassing topics such as construction materials and building sustainability, the journal adopts a holistic approach with the aim of benefiting the community.