Nondestructive Testing of Compressive Strength of Volcanic Rock Concrete by Impact Elastic Wave Method
WANG Zhen
MAO Wenting
LI Xincheng
DANG Yudong
HUANG Xiaomin
Abstract：The strength measurement curves of impact elastic wave compressive strength and impact elastic wave rebound compressive strength have been established for the first time,and estimated compressive strength of volcanic rock concrete was verified.A comparative analysis and research were conducted with the current rebound method and ultrasonic rebound comprehensive method strength measurement curves.The results show that the current rebound method and ultrasonic rebound comprehensive method have significant errors in estimating the compressive strength of volcanic rock concrete.The strength measurement curves of impact elastic wave method and impact elastic wave rebound comprehensive method are more suitable for volcanic rock concrete.The error of the impact elastic wave rebound comprehensive method strength measurement curve is lower,with the average relative error and relative standard deviation being 9.3％and 11.3％,respectively.The relative residual error of this curve for the verification results of small component core drilling is within±11％,and the residual error is within±6 MPa.
Keywords：volcanic rock concreteimpact elastic wave methodrebound valueultrasonic wave velocitystrength curve
Publication Date：2023-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 1328-1334 )