Unilateral propagation

When the concrete wall thickness is unknown, the P wave can be measured on the same surface to estimate the strength index of the concrete; the virtual multi-channel technology can fully utilize the function of the device to further improve the test accuracy.

Double-sided transmission

It is used when there are two test faces (preferably parallel); the energy is strong, and it is also applicable to the larger-sized components (testing 100 meters long) to test the defects, thickness and material of the concrete structure.

Shock echo method

When the test object is thin and the excitation signal and the reflected signal are not well separated, the time of the first reflection (ie, the period) can be calculated by the spectrum analysis method, and the thickness of the object can be measured according to the wave speed.

Test principle and method

Surface wave method

According to the attenuation characteristic of one type of surface wave (Rayleigh wave), the deeper the crack, the greater the energy attenuation;

It is affected by contact with crack faces, steel bars and moisture;

Not only can the crack depth be detected, but also the crack repair effect can be evaluated;

Suitable for testing structures with large test surfaces and deep cracks (>10cm)

The company's original technology is recommended for the Japanese Society of Civil Engineers.

Test objects: various concrete structures such as bridges, piers, tunnel linings, dams, houses, etc.

Test content: concrete material: elastic modulus, compressive strength, etc.

Structure size: thickness

Surface defects: crack depth, void (peeling), surface degradation

Internal defects: internal voids, loose, broken

Test items

The main components of the instrument are imported from abroad. Based on the shock elastic wave theory, it is compatible with many kinds of technologies at home and abroad and the technology independently developed by the company. The testing accuracy is high. The technology of crack depth detection has been listed as the recommended method of Japan Civil Society.

Concrete material testing

Concrete structure inspection

Concrete strength testing

Concrete internal defect detection

product description

IE Analysis Method Based on FFT/MEM

Special Sensor Support with High Damping and Rigidity

The test scope is large and the content is rich

Stable and delicate CT imaging technology

Distance measurement by water-free coupling cross-hole method

Rich application schemes

Results and technical characteristics

Crack depth test method (surface wave method): it is less affected by steel and crack surface contact;

Elastic modulus test method: the effect of steel bars can be corrected, and the test accuracy is comparable to the static load test;

Improved Impact-Echo Method (IEEV): Based on the classical spectrum analysis method FFT, it introduces higher resolution analysis methods and adds intelligent analysis methods, and has two modes of “standard” and “enhanced”.

Concrete multifunctional

non-destructive tester

SCE-MATS

Landing in China

The multi-functional non-destructive testing technology for concrete based on impact elastic wave researched by the company is based on more than 10 years of joint research and hundreds of years of research by Tokyo Electric Power Co., Ltd., Kashima Construction Co., Ltd., and セントラルTechnology. Repeated verification of a project.

In 2007, he landed in China and successively obtained support from Zhejiang Provincial Department of Transportation, Sichuan Provincial Department of Education, and Sichuan Provincial Economic Commission's key innovation projects, and served in a number of testing institutions, research institutes and institutions of higher learning.

2007year

Concrete multifunctional

non-destructive testing technology

the study

10year

Related patents

Patent name: A method for reducing the test error of elastic wave signals by using two-direction vibration

Patent Name: A Nondestructive Test Method for Bearing Capacity of Concrete Bridges Based on Elastic Modulus

Patent No：ZL200510021851.5

Patent No：ZL201310100142.0

Patent No：ZL201410078642.3

Patent Name: Detection Method of Elastic Modulus of Concrete Materials in Reinforced Concrete Members

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1. Technical standard for on-site inspection of concrete structures (GB/T 50784-2013)

2. China Engineering Construction Standardization Association Standard: Technical Specification for Ultrasonic Testing Concrete Defects (CECS21:2000)

3. Industry Standard of the Ministry of Water Resources of the People's Republic of China: Technical Regulations for Defect Inspection of Hydraulic Concrete Structures (SL713-2015)

4. Technical Specifications for Detection and Evaluation of Defects in Hydraulic Concrete Buildings (including Shock Echo, Elastic Wave CT) (DLT5251-2010)

5. Technical specification for assembly concrete structure engineering inspection (DB21T2419-2015)

6. The industry standard for housing and urban construction in the People's Republic of China: impact echo detection is a technical specification for concrete defects (JGT/T411-2017)

7. Local Standards for the Department of Housing and Urban-Rural Development of Shanxi Province: Technical Specifications for Testing Concrete Quality by Impact Elastic Wave Method (DBJ04T39-2017)

According to the standard

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Instrument selection