公开(公告)号：US20230120728A1

公开(公告)日：2023-04-20

申请号：US18066642

申请日：2022-12-15

Applicant: GIATEC SCIENTIFIC INC.

Inventor： POURIA GHODS ,  ROUHOLLAH ALIZADEH ,  MUSTAFA SALEHI

IPC: G01N27/04 ,  G01N17/02 ,  G01N33/38 ,  G01N27/02 ,  G01N17/04

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.

公开(公告)号：US20180238820A1

公开(公告)日：2018-08-23

申请号：US15958481

申请日：2018-04-20

Applicant: GIATEC SCIENTIFIC INC.

Inventor： POURIA GHODS ,  ROUHOLLAH ALIZADEH ,  MUSTAFA SALEHI ,  SARAH SALEHI ,  ANDREW FAHIM

IPC: G01N27/02 ,  G01N17/02 ,  G01N33/38

Abstract: Hundreds of thousands of concrete bridges, buildings etc. and hundreds of billions of tons of concrete require characterization throughout the process from manufacture to pouring and curing and on throughout service life. The characterization may relate to initial concrete properties, projected concrete properties, framework removal, corrosion, failure etc. Accordingly, a variety of measurements such as water content, electrical resistivity, and half-cell corrosion potential for example would be beneficially implemented as easy to use field test equipment or embedded sensors allowing lifetime monitoring to be performed rather than discrete assessments when issues become evident.

公开(公告)号：US20170108456A1

公开(公告)日：2017-04-20

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 ,  C04B40/00 ,  G01N33/38

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.