Effect of High Rebar Temperature During Casting on Corrosion in Carbonated Concrete

Inspector Measuring Corrosion Rate in Concrete Bridge
Inspector Measuring Corrosion Rate in Concrete Bridge

Giatec would like to congratulate Lijie Chen and Ray Kai Leung Su of Hong Kong for their publication of “Effect of High Rebar Temperature During Casting on Corrosion in Carbonated Concrete” in Construction and Building Materials journal.

This paper was researched with the help of Giatec’s iCOR® device, a non-destructive concrete testing tool for detailed corrosion evaluation of reinforced concrete structures, half-cell potentional, and in-situ electrical resistivity of concrete.

Abstract
The heated bar effect on the corrosion rate, corrosion potential and resistivity of partially carbonated concrete is discussed in this paper. The potential use of pulverized fuel ash (PFA) as a substitute for cement to mitigate the heated bar effect is explored. It is found that the heated bar effect can lead to an increase in the corrosion level. The moisture content of concrete noticeably affects the heated bar effect on the corrosion performance of partially carbonated concrete.

Read the full article here.

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Articles

Concrete strength monitoring with thermocouples

Choosing the Right Concrete Thermocouple for Your Jobsite

*For eligible new customers only Get a Free Trial Kit Free Sensor* Free Shipping No Strings Get Your Trial Kit What Is a Concrete Thermocouple?  In layman’s terms, a thermocouple is an electric device that measures temperature, essentially making it a type of thermometer. That being said, it is not the kind of thermometer you would use to measure your body temperature when running a fever, or to deduce what the atmospheric weather is today, or as an in-built mechanism within your refrigerators and heaters. So, what exactly sets a concrete…

SmartRock Sensor and Mobile App

The Importance of Monitoring Temperature Differentials in Mass Concrete

Closely monitoring concrete temperatures is critical for ensuring proper strength development of concrete structures, regardless of their application or size. However, when it comes to mass concrete structures, temperature differentials also need to be considered due to the risk of a large difference between the relatively hot internal temperature and cool surface temperature. If a too-large temperature differential occurs, the surface of mass concrete will start cracking, which is detrimental to its…

Aerial view of construction site

Rebound Hammer vs. The Maturity Method: Which Should You Choose?

Schmidt/Rebound Hammer Method The concrete rebound hammer test (often referred to as Schmidt Hammer) was invented in 1948 and is still a popular choice to test the compressive strength of concrete. To use this method, the rebound hammer must first be calibrated against a steel test anvil. Once calibrated, a spring release mechanism is used to activate a hammer which impacts a plunger to drive into the surface of the concrete. After…

We use cookies to provide you with a better experience, analyze site traffic and assist in our marketing efforts. By continuing to use this website, you consent to the use of cookies in accordance with our Privacy Policy Page.