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    Quality detector for grouting density of duct

    Device name
    Quality detector for grouting density of duct


    High precision:
    Improve the impact echo method to improve detection accuracy;

    It can be connected with AI-assisted judgment, and the judgment result is automatic and accurate.

    Waveforms, spectrum contours can be drawn in real-time, the determination of defects is simple and clear, and results can be produced on site.

    Technical expertise:
    Original technology, perfect system and advanced principle.

    High reliability:
    Accumulated more than 20 years of experience, thousands of test cases, and related technologies have won many awards ※.


    Product Highlights


    According to the standard





    1.Technical regulations for non-destructive testing of grouting compactness of bridge prestressed tunnels in Shanxi Province (DB14 / T 1109-2015)


    2. Technical Regulations for Quality Testing of Dense Grouting in Prestressed Tunnels of Bridges in Hebei Province (DB13 / T 2480—2017)


    3. Fujian Province Highway Concrete Structure Bridge Prestressing System Quality Inspection Technical Regulations (DB35 / T 1638—2017)



     product description


     This product is mainly used for grouting compactness testing of bridge prestressed tunnels. It can quickly and qualitatively detect the density of holes; it can also detect the position and range of grouting defects. Not only can be used to test all types of bellows, but also can be used to test the longitudinal, vertical and transverse channels. Has obtained five patents and supports AI (Artificial Intelligence) assisted analysis.





    High accuracy: AI-assisted determination
    Automatic and precise judgment results


     Wide range: suitable for 0.1-1m

    thick beam plate



    Test object: prestressed channel

    Test content: grouting density


    Test items


    Related patents

    Patent name: A method for testing the

    grouting compactness of bridge

    prestressed tunnels based on the energy

    dissipation rate of elastic waves



    Patent name: Non-destructive grouting density of

    bridge prestressed tunnel


     Patent name: A non-destructive testing method for

    testing the tension of prestressed anchor system

    Patent No:200910197828.X

    Patent No:ZL200910177856.5

    Patent No:ZL201110342911.9

    Patent name: Technology to reduce the

    test error of elastic fluctuation signals by

    using bidirectional vibration

    Patent No:ZL200510021851.5

    Patent No:ZL 201110155408.2

    Patent name: Method and system for testing grouting

    compactness of bridge prestressed tunnel



    Test Methods


     Quality detector for grouting density of duct



    Corresponding parameter set not found, please add it in property template of background
    1 ★Provide database management services, can be docked with BIM system to achieve the visualization of test results model; with the database, can be linked to test results cloud AI (artificial intelligence) analysis
    2 ★operating system:windows
    3 ★Waveform noise processing and spectrum analysis: Mobile smoothing、BPF、EMD、FFT、MEM
    4 ★Test contents: rapid qualitative test and accurate positioning test for grouting quality of prestressed pipeline
    5 ★Test methods: longitudinal qualitative (FLEA, FLPV, PFTF), longitudinal positioning (IEEV, IERS), vertical and horizontal channels(VDFM)
    6 ★Coupling of grouting location: high damping sensor support
    7 ★Number of channels: 2 channels (using VMC technology to expand to multiple channels), triggering channels and receiving channels are interchangeable
    8 ★Signal processing technology: reducing residual vibration signals; integrating processing and averaging processing
    9 Platform: Integrated Platform
    10 The test area of grouting density is: qualitative test can reach 150m; positioning test is not restricted by pore length
    11 Data acquisition: support for touch and wireless dual mode operation; support for single and continuous dual mode sampling 
    12 working temperature:0~45℃  
    13 Sampling accuracy: floating point interpolation is compensated to 24 bits
    14 Sampling frequency: 500KHz, adjustable                      
    15 Maximum collection points: 20000, adjustable
    16 Maximum / minimum voltage can be displayed:10V/0.0001V
    17 Display: LCD display1280*800 
    18 Graphics processing: isoline, shading chart, elastic wave radar scanning
    19 The same screen indicates the maximum waveform number: 300 (waveform acquisition point 2048, sampling interval 4us)
    20 Location information: supporting GPS positioning

    Wide area vibration signal pickup device



    Acceleration sensor


    Acceleration sensor



    Voltage cable

    Charge cable




    Charge cable

    Wide area vibration signal pickup device


    Impact hammer


    Verification of T-beam thick plate of Anjiang Expressway


    Detection of Grouting Density in Shaanxi Province

    Verification of Small Box Girder of Zhenglu Expressway in Henan Province


    Verification of T-beam of Hunan Longyong Expressway

    Verification of Continuous Cast-in-situ Beams on Hunan Railway

    Verification of Thick Wall Retaining Wall of Aqueduct in South-to-North Water Transfer Project


    Verification of Continuous Rigid Frame Thick Web of Guizhou-Chongqing Railway

    Shandong Jining Continuous Rigid Frame Bridge in Service

    Verification of Shaanxi Tonghuang High Speed Small Box Girder

    Verification of cast-in-place slab of Jiyun Bridge in Tianjin

    Verification of web of Shaozhu high-speed box girder in Zhejiang Province

    Verification of T-beam and thick plate in Hechuan, Chongqing




    Device name
    Back pull effective prestress detector
    Device name
    Prestressed anchor cable (pole) tension detector
    Device name
    Multi function detector of prestressed
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