Alkalinity of cement can be determine by XRF or EDX in terms of % alkali content. How can we analyse quantitatively the alkalinity of concrete?
Please suggest some protocol or literature.
Thanks.
Dear Kunal,
Some alternatives to EDX and FRX are the thermogravimetric analysis, (TGA/DTG). With this method you can measure the relative content of portlandite; less sophisticated is the use of pH indicators, such as phenolphtalein. It depends on your goal. In the following papers you will find related information and techniques,
- Chang, Cheng-Feng, Chen, Jing-Wen. The experimental investigation of concrete carbonation depth. Cement and Concrete Research 2006; 36(9) 1760-1767
Perhaps, if you are trying to ascertain the progress of the pozzolanic reaction, this paper suits better
Borrachero, María V. Monzó, José M. Payá, Jordi, Velázquez, Sergio. Pozzolanic reaction rate of fluid catalytic cracking catalyst residue (FC3R) in cement pastes. Advances in Cement Research 2013; 25(2) 112-118
Regards,
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