Abstract Non-destructive evaluation (NDE) of cement hydration was conducted using pulsed and continuous-wave terahertz systems. The transmitted and reflected terahertz (THz) waves passing through the cement were measured and their relationship with the degree of the cement hydration was investigated. For an in-depth study, the chemical constituents and microstructure of the cement were analyzed through a Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). Consequently, a new prediction model for degree of hydration was proposed. The proposed model is the basic algorithm for estimating the cement hydration. Although this model needs additional experiments and research to be used in practice, it can be utilized as the basic measurement method to estimate the hydration degree of the cement

中文翻译：

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脉冲连续太赫兹电磁波无损评价水泥水化

摘要 使用脉冲和连续波太赫兹系统对水泥水化进行了无损评价（NDE）。测量了穿过水泥的透射和反射太赫兹 (THz) 波，并研究了它们与水泥水化程度的关系。为了深入研究，通过傅里叶变换红外光谱 (FT-IR) 和扫描电子显微镜 (SEM) 分析了水泥的化学成分和微观结构。因此，提出了一种新的水化度预测模型。所提出的模型是估计水泥水化的基本算法。虽然该模型需要额外的实验和研究才能在实践中使用，但它可以作为估计水泥水化度的基本测量方法