Sensing Intrinsic Nano-Microstructural Characteristics of Hardening Concrete with High-Frequency Transverse Waves

为了保证混凝土施工的高质量，需要可靠的传感器来监测混凝土的凝结和硬化过程。提出了一种利用超声剪切波监测胶凝材料水化过程的高频波反射（HFWR）技术。提出的研究旨在研究微观结构、力学性能和hwrr测量之间的基本关系。目的是通过结合实验技术，探测纳米和微观结构以及数值模拟来获得协同效应。与全球研究网络的合作将涉及本科生和研究生。研究计划是开发一种传感器，它可以读取存储在不断变化的纳米和微观结构中的信息，并立即使用这些数据推断出内在的机械性能。待开发的程序和模型具有推广到其他经历渗透过程的材料的高潜力。

Sensing Intrinsic Nano-Microstructural Characteristics of Hardening Concrete with High-Frequency Transverse WavesTo assure high quality of concrete construction, reliable sensors are needed to monitor the setting and hardening process. This proposal presents a high frequency wave reflection (HFWR) technique, which uses ultrasonic shear waves to monitor the hydration process of cementitious materials. The proposed investigations are aimed at studying the fundamental relationships among evolving microstructure, mechanical properties, and HFWR-measurements. It is intended to draw synergies by combining experimental techniques, which probe nano and microstructure and numerical modeling. The collaboration with a world-wide network of researches will involve undergraduate and graduate students. The research plan is to develop a sensor that reads the information stored in the evolving nano and microstructure and immediately use this data to infer the intrinsic mechanical properties. The procedures and models to be developed have a high potential to be generalized to other materials that undergo percolation processes.