Fundamental Properties of Sub-THz Reflected Waves for Water Content Estimation of Reinforced Concrete Structures-Reference-Cited by-同舟云学术

Fundamental Properties of Sub-THz Reflected Waves for Water Content Estimation of Reinforced Concrete Structures

Published:2024-04-12 Issue:4 Volume:14 Page:1076
ISSN:2075-5309
Container-title:Buildings
language:en
Short-container-title:Buildings

Author:

Tanaka Akio¹^ORCID,Arita Koji²,Kobayashi Chihiro³^ORCID,Nishiwaki Tomoya³^ORCID,Tanabe Tadao⁴^ORCID,Fujii Sho⁵

Affiliation:

1. Department of Architecture, Nippon Institute of Technology, Saitama 345-8501, Japan

2. Constec Engi,Co., Tokyo 143-0006, Japan

3. Graduate School of Engineering, Tohoku University, Sendai 980-8577, Japan

4. College of Engineering and Design, Shibaura Institute of Technology, Tokyo 135-8548, Japan

5. Faculty of Science, Yamagata University, Yamagata 990-0021, Japan

Abstract

Water plays a significant role in the deterioration of reinforced concrete buildings; therefore, it is essential to evaluate the water content of the cover concrete. This study explores a novel non-destructive method for assessing the water content using sub-terahertz (sub-THz) waves. Among the four frequencies selected to evaluate the water content, an increase in reflectance was observed as the unit volume water content increased, and smaller data scatter was confirmed as the frequency increased. The derived empirical equation can classify the corrosion risk of the rebar environment based on the water content obtained using reflectance measurements. In other words, it can contribute to the diagnosis of the building integrity associated with rebar corrosion.

Funder

JAEA Nuclear Energy S&T and Human Resource Development Project

Publisher

MDPI AG

Link

https://www.mdpi.com/2075-5309/14/4/1076/pdf

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