Frequently Asked Questions

Giatec

What is Giatec’s vision for the construction industry?

Giatec's vision is to revolutionize the concrete industry by implementing smart technologies that monitor concrete properties and analyze data during design, production, delivery, placement, and service.

I am interested in distributing your products. How do I become a dealer?

Giatec's dealer network supplies and supports our products throughout the world. Please contact us for the authorized dealer in your country. If you are interested in distributing our products, complete the Distributor Questionnaire.

SmartRock™

How long is the battery life?

The battery life is about 4 months under room temperature.

Do MTO and DOTs allow this method of concrete strength measurement?

The strength estimation according to the concrete maturity method as described in the ASTM C1074 has been specified by many DOTs in the US as well as the CSA. Here is the clause from CSA:

"4.4.6.4.5 In-place strength
4.4.6.4.5.1 Test procedures
Unless otherwise specified by the owner, the in-place strength shall be determined in accordance with CSA A23.2-14C, CSA A23.2-15C or ASTM C1074 for the purposes of determining:
(a) when forms shall be removed or when prestressing or post-tensioning shall be applied; (b) when curing shall be terminated; and (c) when re-shores shall be removed."

What are the wires sticking out of the SmartRock?

You will find two short metal wires and a slightly longer black wire sticking out of the SmartRock device. The end of the black wire is the temperature sensor, while the two short metalic wires are used to activate the sensor and to secure it to the rebar.

What is the maximum depth I can place the SmartRock?

We recommend a maximum depth of 5cm (2 inches) to ensure that the signals from the sensor are strong enough. The signal strength weakens as you place the sensor deeper.

Can I get SmartRock with longer thermocouple cables?

Yes. Please ask for customized length when you are ordering your SmartRock package. You can get this cable as long as 10 ft.

SmartRock™ Plus

How do I become a SmartRock Plus ready-mix partner?

All you have to do is fill out our “get in touch” form on the SmartRock Plus product page and our team will contact you as soon as possible to discuss this value-added program with you.

What are the Benefits of Using Precalibrated SmartRock Plus Mixes?

With SmartRock Plus you will be able to pre-calibrate a variety of mixes for contractors. This will help you identify a mix that fits a project's specific performance requirements--whether it is paving, post-tensioned decks, structural columns, or industrial elements. Not only that, but you will be able to continually improve your Smart™ mixes and optimize them to speed up the curing process.

BlueRock™

How long is the battery life?
The battery life is up to 2 months under room temperature.

SmartBox™

How long is the battery life?

The battery life on a single charge is about 3 months for basic data log under room temperature.

What is the log interval for resistance and temperature?

The standard log follows this schedule:
First 24 hours: every 5 minutes
Next 72 hours: every 1 hour
After that: every 6 hours
We also have custom log which provides a fix log interval in minutes (1 min to a couple of days). This can be changed by the user in the app menu.

What is the maximum number of data that can be recorded on the SmartBox?

The device can store 1024 data points in the following format:
Time | Date | Temp (C) | Resistance (ohm)
10:20 | 10/02/2015 | 23 | 789

iCOR®

Is the iCOR compliant with ASTM standards?

There is no standard available yet for the corrosion rate measurement based on the patented CEPRA technique. Giatec iCOR is the only product on the market that doesn’t require the connection to the reinforcement to obtain corrosion rate. In addition to corrosion rate and resistivity, the iCOR also provides a standard half-cell measurement unit for corrosion potential measurement; the half-cell measurement is optional as it requires connection to the reinforcement. The standard for corrosion potential measurement of rebar in concrete is ASTM C876.

How does concrete cover thickness affect the readings?

The user needs to input the cover thickness in the software for corrosion rate measurement. The range of cover thickness can vary from 1 cm to 9 cm (0.4 to 3.5 in) with an increment of 1 cm (0.4 in).

How does the moisture of concrete affect the iCOR results?

iCOR measurements are sensitive to the concrete moisture. The dryer the concrete is, the higher the electrical resistivity values, the lower the corrosion rate and more positive the corrosion potential will be. Pre-wetting the concrete surface is required before the use of any corrosion measurement. In the case of iCOR, a wet connection between the electrodes and surface of concrete through sponges is required to obtain reliable measurements.

What kind of electrode is used in the iCOR for corrosion potential measurement?

The iCOR uses a solid-base Ag/AgCl electrode for the half-cell measurement. This is a maintenance- free electrode capable of doing upside down measurement and also less prone to contamination due to chlorides. Ag/AgCl has a fixed potential offset compared to the Cu/CuSO4 electrode; the iCOR software accounts for this difference and presents the results in mV/CSE (i.e., Cu/CuSO4 Electrode) as per the ASTM C876.

Can I do a measurement on epoxy coated rebar?

The iCOR applies an electrical current between the two outer electrodes; any non-conductive layer will cause interruption in the flow of current into concrete. If the epoxy on the bar is perfectly intact, no measurement would be possible.

XCell™

Could the Android application be installed on other Android devices?

Yes. However, the user requires a product key to activate the Android application. The product key is unique number that is provided with the XCell™ sensor. Moreover, the Android device should have wireless 4.0 LE connectivity.

Does the half-cell electrode need to be calibrated?

A verification kit is available to purchase with the XCell™ package. It is recommended to verify the device using this reference electrode before conducting a corrosion mapping project. In case the XCell™ readings are not in range, the device has to be calibrated by our technical support team.

Does XCell™ requires a hard wire connection to steel rebar during testing?

Yes, according to the half-cell test standard, a hard-wire connection to the steel rebar is required.

Can XCell™ develop corrosion mapping for non-flat surface?

Corrosion map can be developed for a non-flat surface as the measurements are single points. But, it should be noted that delaminated surfaces cannot be tested since there is no physical contact between the concrete and rebar.

Perma™

What vacuum pressure is the vacuum pump setup for conditioning the specimens?

According to the ASTM C1202, a vacuum pressure of 50 mm Hg should be applied. This is equivalent to a maximum of about -28 in Hg on the pressure gauge supplied with the Perma™ vaccum pump. So, it is required to keep the pressure using the vacuum pump supplied, less than -28 in Hg during the conditioning of the RCPT specimens.

Is caulking required for the testing cell?
No, caulking is not needed for Perma testing cell. The specimen should have epoxy coating, in order to keep the chloride penetration one-dimensional.

RCON™

Can RCON™ be used for field tests on hardened concrete, or is it just for laboratory use?

RCON™ is designed to test hardened concrete samples of different sizes and shapes for both laboratory and field applications.
Your website mentions the correlation between ASTM C1202 and the RCON™. Do you have any data comparing the results of the 2 methods?
Yes. There is a correlation between the results of the rapid chloride permeability test and those obtained from the electrical resistivity method.

Surf™

Is it required to use wet sponges for resistivity measurement using Surf™?

If you are testing saturated surface dry specimens (SSD condition), there is no need to use wet sponges. But, for dry specimens, you have to use either wet sponges on the connection tips or the conductive gel provided with the device.

How does Surf™ take measurements faster?

Giatec Surf™ utilizes a patented technology to automatically measure the surface resistivity 8 times around the cylindrical concrete specimen using its four channels of 4-probe arrays. The PC software then generates the required reports according to the standard specifications.

Can Surf™ be used for field tests on hardened concrete or is it just for laboratory use?

The current version of Surf™ has been designed for laboratory applications in the durability-based quality control of concrete. An accessory is under development for Surf™ that enables this device for field applications as well.

How can I use Surf™ for other applications?

The four input channels of Surf™ device can be connected to accessory cables for customization of test-setup for surface resistivity measurement from the surface of concrete elements (e.g. crack detection under load) or be embedded in fresh and hardened concrete for the monitoring of setting and moisture transport, respectively. Giatec's scientific team will be happy to assist you with your particular research project application.