Estimation of Strength Development of Concrete Using Dielectric Measurements
Estimation of Strength Development of Concrete Using Dielectric Measurements
复制标题
使用介电测量估计混凝土强度发展
DOI：
10.1007/978-981-19-3303-5_39
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Sudo Seiichi
中科院分区：
文献类型：
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作者：
Isobe Ryota;Sato Sachie;Kurihara Norihiko;Sudo Seiichi
本研究发现了可能性估计的强度发展的混凝土在固化初期使用介电测量。在混凝土结构中，由于初始养护期间的水化过程而导致的强度发展是一个关键过程，并决定了随后的性能。混凝土的抗压强度通常通过压缩已浇注的小圆柱形试样来测量。然而，由于混凝土的强度发展受到诸如环境和水化热的极大影响，实际施工现场需要对混凝土结构进行直接和非破坏性的测量方法。在这项研究中，我们进行了基本的实验，以估计初始强度的发展，通过评估砂浆试样的水化进程，使用介电测量。结果表明，由于介电弛豫时间随时间的变化与材料的老化程度存在相关性，介电测量可以很好地反映材料的自由水和束缚水状态。
This study found the possibility of estimating the strength development of concrete during the initial curing period using dielectric measurements. In concrete structures, the strength development due to hydration progress during the initial curing period is a critical process and determines the subsequent performance. The compressive strength of concrete is typically measured by compressing small cylindrical specimens that has been poured. However, since the strength development of concrete is greatly affected by such as surroundings and heat of hydration, the actual construction sites require a direct and non-destructive measurement method for the concrete structures. In this study, we conducted basic experiments to estimate the initial strength development by evaluating the hydration progress of mortar specimens using dielectric measurements. The results showed the dielectric measurements could evaluate the free and bound water state because there was the correlation between the time variation of dielectric relaxation time and the material age.