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    Embedded wireless monitoring sensors
    2.
    发明授权
    Embedded wireless monitoring sensors 有权

    公开(公告)号：US11156593B2

    公开(公告)日：2021-10-26

    申请号：US16385205

    申请日：2019-04-16

    Applicant: GIATEC SCIENTIFIC INC.

    Inventor： Pouria Ghods ,  Rouhollah Alizadeh ,  Mustafa Salehi ,  Sarah De Carufel

    IPC: G01N33/38 ,  B28C7/02 ,  C04B40/00 ,  B28B23/00 ,  G01N17/04 ,  G01N27/04

    Abstract: Concrete can be one of the most durable building materials where consumption is projected to reach approximately 40 billion tons in 2017 alone. Despite this the testing of concrete at all stages of its life cycle is still in its infancy although testing for corrosion is well established. Further many of the tests today are time consuming, expensive, and provide results only after it has been poured and set. Accordingly, by exploiting self-contained wireless sensor devices, which are deployed with the wet concrete, the in-situ curing and maturity measurement data can be established and employed together with batch specific concrete data to provide rapid initial tests and evolving performance data regarding the concrete cure, performance, corrosion of concrete at different points in its life cycle. Such sensors remove subjectivity, allow for rapid assessment, are integrable to the construction process, and provided full life cycle assessment.

    Electrical methods and systems for concrete testing
    6.
    发明授权
    Electrical methods and systems for concrete testing 有权

    公开(公告)号：US10775332B2

    公开(公告)日：2020-09-15

    申请号：US15311055

    申请日：2015-05-13

    Applicant: GIATEC SCIENTIFIC INC.

    Inventor： Rouhollah Alizadeh ,  Pouria Ghods ,  Amir Hosein Ghods ,  Mustafa Salehi

    IPC: G01N27/02 ,  G01N33/38 ,  C04B40/00 ,  G01M5/00 ,  G01R27/16 ,  C04B111/00 ,  C04B111/92

    Abstract: Concrete can be one of the most durable building materials and structures made of concrete can have a long service life. Consumption is projected to reach approximately 40 billion tons in 2017. Despite this the testing of concrete at all stages of its life cycle is still in its early stages although testing for corrosion is well established. Further many of the tests today are time consuming, expensive, and provide results only after it has been poured and set. Embodiments of the invention provide concrete suppliers, construction companies, regulators, architects, and others with rapid testing and performance data regarding the cure, performance, corrosion of concrete at different points in its life cycle based upon a simple electrical tests that remove subjectivity, allow for rapid assessment, are integrable to the construction process, and provided full life cycle assessment. Wireless sensors can be embedded from initial loading through post-cure into service life.

    Electrical methods and systems for concrete testing
    7.
    发明授权
    Electrical methods and systems for concrete testing 有权

    公开(公告)号：US10571418B2

    公开(公告)日：2020-02-25

    申请号：US15496298

    申请日：2017-04-25

    Applicant: GIATEC SCIENTIFIC INC.

    Inventor： Pouria Ghods ,  Rouhollah Alizadeh ,  Mustafa Salehi

    IPC: G01R27/08 ,  G01N27/04 ,  G01N17/02 ,  G01N33/38 ,  G01N27/02 ,  G01N17/04 ,  G01L1/10 ,  G01N17/00 ,  G01L1/20 ,  G01L1/22 ,  G01R27/00

    Abstract: Hundreds of thousands of concrete bridges and hundreds of billions of tons of concrete require characterization with time for corrosion. Accordingly, protocols for rapid testing and improved field characterization systems that automatically triangulate electrical resistivity and half-cell corrosion potential measurements would be beneficial allowing discrete/periodic mapping of a structure to be performed as well as addressing testing for asphalt covered concrete. Further, it is the low frequency impedance of rebar in concrete that correlates to corrosion state but these are normally time consuming vulnerable to noise. Hence, it would be beneficial to provide a means of making low frequency electrical resistivity measurements rapidly. Further, prior art techniques for electrical rebar measurements require electrical connection be made to the rebar which increases measurement complexity/disruption/repair/cost even when no corrosion is identified. Beneficially a method of determining the state of a rebar without electrical contact is taught.

    Electrical methods and systems for concrete testing
    8.
    发明授权
    Electrical methods and systems for concrete testing 有权

    公开(公告)号：US11531000B2

    公开(公告)日：2022-12-20

    申请号：US17019578

    申请日：2020-09-14

    Applicant: GIATEC SCIENTIFIC INC.

    Inventor： Rouhollah Alizadeh ,  Pouria Ghods ,  Amir Hosein Ghods ,  Mustafa Salehi

    IPC: G01N27/02 ,  G01N33/38 ,  C04B40/00 ,  G01M5/00 ,  G01R27/16 ,  C04B111/00 ,  C04B111/92

    Abstract: Concrete can be one of the most durable building materials and structures made of concrete can have a long service life. Consumption is projected to reach approximately 40 billion tons in 2017. Despite this the testing of concrete at all stages of its life cycle is still in its early stages although testing for corrosion is well established. Further many of the tests today are time consuming, expensive, and provide results only after it has been poured and set. Embodiments of the invention provide concrete suppliers, construction companies, regulators, architects, and others with rapid testing and performance data regarding the cure, performance, corrosion of concrete at different points in its life cycle based upon a simple electrical tests that remove subjectivity, allow for rapid assessment, are integrable to the construction process, and provided full life cycle assessment. Wireless sensors can be embedded from initial loading through post-cure into service life.

    Electrical methods and systems for concrete testing
    9.
    发明授权
    Electrical methods and systems for concrete testing 有权

    公开(公告)号：US11016046B2

    公开(公告)日：2021-05-25

    申请号：US16581979

    申请日：2019-09-25

    Applicant: GIATEC SCIENTIFIC INC.

    Inventor： Pouria Ghods ,  Rouhollah Alizadeh ,  Mustafa Salehi

    IPC: G01R27/08 ,  G01N27/04 ,  G01N17/02 ,  G01N33/38 ,  G01N27/02 ,  G01N17/04 ,  G01L1/10 ,  G01N17/00 ,  G01L1/20 ,  G01L1/22 ,  G01R27/00

    Abstract: Hundreds of thousands of concrete bridges and hundreds of billions of tons of concrete require characterization with time for corrosion. Accordingly, protocols for rapid testing and improved field characterization systems that automatically triangulate electrical resistivity and half-cell corrosion potential measurements would be beneficial allowing discrete/periodic mapping of a structure to be performed as well as addressing testing for asphalt covered concrete. Further, it is the low frequency impedance of rebar in concrete that correlates to corrosion state but these are normally time consuming vulnerable to noise. Hence, it would be beneficial to provide a means of making low frequency electrical resistivity measurements rapidly. Further, prior art techniques for electrical rebar measurements require electrical connection be made to the rebar which increases measurement complexity/disruption/repair/cost even when no corrosion is identified. Beneficially a method of determining the state of a rebar without electrical contact is taught.

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