公开(公告)号：US20230243781A1

公开(公告)日：2023-08-03

申请号：US18002789

申请日：2021-07-01

Applicant: Purdue Research Foundation

Inventor： Na Lu ,  Zhihao Kong

IPC: G01N29/12 ,  G01N29/24 ,  G01N29/44

CPC classification number: G01N29/12 ,  G01N29/2437 ,  G01N29/2475 ,  G01N29/4418 ,  G01N2291/014 ,  G01N2291/0232 ,  G01N2291/0251

Abstract: A method includes filling a cavity of a form defined by one or more boundaries with an uncured concrete mixture such that the uncured concrete mixture contacts or envelops a piezoelectric sensor within the form, receiving one or more electrical signals from the piezoelectric sensor as the uncured concrete mixture cures within the form to define a concrete sample, determining an electrical signal-frequency spectrum of the electrical signal(s) received from the piezoelectric sensor, determining one or more resonant frequencies of the concrete sample based on the electrical signal-frequency spectrum, determining a Young's modulus of the concrete sample based on the one or more resonant frequencies thereof, and outputting the determined Young's modulus or information based on the determined Young's modulus.