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

Year: 2024

Type: article

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.

Source: Developments in the Built Environment

DOI: 10.1016/j.dibe.2024.100561

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

Institutions: Xijing University, Wuhan University

Language: English

Topic: Electrokinetic Soil Remediation Techniques

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,840