Concrete is the most used material in the world because of its cheap price and large quantity. It is needless to say concrete is made of cement. However, cement is also a criticized material by the public, for its intensive CO2 emission from production process. The production of cement accounts for about 5-8% of the non-natural CO2 worldwide.
As a cement researcher, I know cement much better than average people, while it is not the case with everything with a name using the word “cement”.
When I type “cement” in the powerful Google search box, Google automatically gives an alternative search phrase “cement mixer shot”, which means “cement mixer shot” is a very popular searchable phrase on the Internet.
Granulated Blast Furnace Slag (GBFS) is the most used material in cement industry to make slag cement. How is GBFS made? What are the processing and its applications?
Process: water quenching
Generally speaking, GBFS is formed by water quenching. The glassy and granular material is generated when slag is rapidly chilled by immersion in water.
It is so common to see the terms “degree of hydration” and “degree of reaction” in research field of cemetitious material, such as cement or blended cement, especially when we focus on the kinetics.
Here comes the question, what is the difference between the two terms? are they actually the same meaning? I was confused by the two terms when I read a huge number of papers and found not so many researchers make them clear or maybe they do not realize the difference either.