Portable Rebar Corrosion Diagnostic Device CM-V Rental
Longer-lasting and more beautiful concrete structures!
The "Portable Rebar Corrosion Diagnostic Device CM-V" measures surface deterioration and delamination, and through unique research, it has achieved an estimation of concrete strength that is less affected by surface deterioration. The measurement results have significantly improved accuracy compared to traditional hammer-type non-destructive testing devices. Data can be output and processed on a computer, making report creation easy. This eagerly awaited non-destructive testing device streamlines on-site work with a simple and speedy measurement method, enabling thorough data analysis.
basic information
Product Code: 22062 *When inquiring, please provide this number for a smoother process.* ***The Necessity of Rebar Corrosion Diagnosis*** To maintain the value of concrete structures such as buildings and bridges over the long term, it is essential to accurately understand the corrosion rate of the supporting rebar and to carry out planned repairs. If left unattended, corrosion will worsen significantly, resulting in enormous repair costs. Therefore, various rebar corrosion diagnosis devices have been developed domestically, but they cannot accurately determine the degree and rate of corrosion, and the devices are large and heavy, making work in high places or narrow spaces extremely difficult. To address these issues all at once and to make rebar corrosion diagnosis more accurate and easier, we have developed the CM-V. ***Features*** - High Precision: Measures polarization resistance (corrosion rate) using a dual electrode method, allowing for more accurate measurements. - Compact and Lightweight: Weighs only 2.5 kg (including the battery). It is convenient to carry to measurement sites. Additionally, with a built-in battery, it performs effectively for field measurements.
Price information
The price varies depending on the rental period. We will create a quotation based on the period and purpose you specify.
Delivery Time
Model number/Brand name
Shikoku Research Institute
Applications/Examples of results
***Measurement of Rebar Corrosion*** CM-V connects a lead wire to a rebar exposed at one location and uses it as the working electrode (WE), combining it with a reference electrode (RE) and two counter electrodes (Center Counter Electrode (CCE) and Guard Counter Electrode (GCE)) to create a dual counter electrode sensor. This sensor is installed on the concrete surface just above the rebar to be measured. A weak alternating current of high and low frequencies is then passed through, and from the impedance value at that time, the polarization resistance Rct, which is inversely proportional to the corrosion rate lorr, is determined. This allows for the evaluation of the corrosion range and corrosion rate of the rebar in concrete structures. (Patent obtained) *Patent permission has been obtained from Nippon Steel Corporation.* ***Understanding Impedance Characteristics (Precision Measurement)*** Automatic measurement of alternating current impedance can be performed in the frequency range from 10 Hz to 0.1 mHz. In this case, the data transferred to a computer can be printed as an organized numerical list of frequency, impedance (absolute value), phase, real part, and imaginary part. Additionally, automatic plotting of the Cole-Cole plot can be performed.
