超音波法による含水状態の異なるコンクリートの圧縮強度推定

Q2 Engineering

Journal of Structural and Construction Engineering Pub Date : 2023-11-01 DOI:10.3130/aijs.88.1491

Ayumu YASUE, Junho KIM, Yuhei NISHIO, Manabu KANEMATSU, Tetsuro MATSUSHITA, Toshinobu MAENAKA, Tsuguyoshi SUZUKI, Hayate HIGANO

引用次数: 0

Abstract

The moisture content of concrete affects the ultrasonic pulse velocity and compressive strength. This effect adversely affects the estimation of the concrete compressive strength by ultrasonic testing. Therefore, this study conducted ultrasonic and compressive tests on dry concrete specimens. By applying the measured experimental results, this study proposed an estimation equation for concrete compressive strength that considers the effect of the moisture content. The proposed equation can estimate the compressive strength of dried concrete, concrete that has been dried and underwater curing again, and concrete that ha s been cured under standard curing conditions with an accuracy of about ±20%.

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超声波方法对不同含水状态下的混凝土的压实强度进行估计

混凝土含水率影响超声脉冲速度和抗压强度。这种影响对超声检测混凝土抗压强度的估计产生不利影响。因此，本研究对干混凝土试件进行了超声和压缩试验。应用实测试验结果，提出了考虑含水率影响的混凝土抗压强度估算方程。该公式可对干燥后的混凝土、经干燥后再进行水下养护的混凝土以及在标准养护条件下进行养护的混凝土进行抗压强度估算，精度约为±20%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Structural and Construction Engineering Engineering-Architecture

CiteScore

0.80

自引率

0.00%

发文量

104

审稿时长

24 weeks

期刊介绍： The Architectural Institute of Japan’s Journal of Structural and Construction Engineering aim to pursue theories for building and maintaining pieces of architecture as well as the cities or areas surrounding them, and to accumulate and systematize the knowledge needed to put those theories into practice. The Journal of Structural and Construction Engineering focuses on research results in the specific fields of “building materials and construction” and “structures.” Accordingly, it compiles articles in the following areas, disseminates relevant information, and hosts discussions: ・Concrete, steel, and inorganic materials ・Timber and organic materials ・Finishing materials ・Construction and quality management ・Applied mechanics ・Loads and reliability on structures ・Building foundations ・Timber structures ・Steel structures ・Reinforced concrete structures ・Shell and spatial structures ・Engineering seismology and structural dynamics ・Other composite structures