A few days ago, the Shanxi provincial engineering construction local standard "Technical Regulations for Testing the Quality of Concrete by Impact Elastic Wave Method" edited by our company has been officially issued and implemented: DBJ04 / T339-2017.
This regulation makes relevant provisions for the detection of concrete thickness, strength, internal defects and crack depth by the impact elastic wave method, regulates the analysis and determination of the related operations and test results of the test operation, and promotes the development of health standards in the test industry.
As of now, our company's main technologies have been written:
National Standard "Steel Guardrail Column Buried Deep Impact Elastic Wave Detector" GB / T2496⒎ -2010
Enterprise Standard "Concrete Comprehensive Nondestructive Testing System" B510300.46—2014
Water Conservancy Industry Standard "Technical Regulations for Detecting Defects in Hydraulic Concrete Structures" SL713-2015
Shanxi Province local standard "Technical Regulations for Non-destructive Testing of Grouting Density of Prestressed Holes" DB14 / T 1109-2015
13Hebei Provincial Standard "Technical Regulations for Quality Inspection of Bridge Prestressed Holes Dense Grouting" DB13 / T 2480—2017
地方 Fujian local standard "Technical Code for Quality Inspection and Evaluation of Highway Concrete Bridge Prestress Construction" DB35 / T1638—2017
Industry Code "Technical Code for Detecting Concrete Defects by Impact Echo Method" JGJ / T 411-2017
Shanxi Provincial Engineering Construction Standard “Technical Specification for Testing Concrete Quality by Impact Elastic Wave” DBJ04 / T339-2017
The above standards have been promulgated and implemented.