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Effect of Surface Bugholes on Chloride Penetration of Concrete Coated with Penetrants by Liangjun Hu; Isamu Yoshitake; Masayuki Sayama; Shoichi Sayama is a Engineering article available to read on EtoBox.

What is Effect of Surface Bugholes on Chloride Penetration of Concrete Coated with Penetrants about?

Bugholes, considered an aesthetic problem, generally appear on concrete surfaces. Such surface imperfections may accelerate the ingression of liquids and chlorides. Chloride penetration is of crucial concern for reinforced concrete in a saline environment. Various surface penetrants have been widely used to protect concrete from environmental corrosion. However, most previous research on penetrants was conducted on concrete with minimal surface imperfections, such as bugholes or cracks. These surface blemishes bring worries about the protective effect of surface penetrants for concrete that may degrade. Surface finishing before coating increases construction costs and duration. This study focuses on the impact of surface bugholes on chloride penetration of concrete coated with surface penetrants. The surfaces of specimens have various sizes of bugholes. Specimens were immersed in a sodium chloride solution of 3% for 100 days. The test results show that silane-based penetrants have an excellent water-repellent effect even on a concrete surface with bugholes. The chloride penetration depth increased with increasing surface bughole size when the concrete surface was uncoated or coated

Who reads Effect of Surface Bugholes on Chloride Penetration of Concrete Coated with Penetrants?

Author

Liangjun Hu; Isamu Yoshitake; Masayuki Sayama; Shoichi Sayama

Publisher

Thomas Telford; Thomas Telford Ltd.; ICE Publishing Ltd. (ISSN 0024-9831)

Published

2022

Language

EN

Field

Engineering (Physical Sciences)