Open AccessInvestigation of the reactions of chlorides binding to aluminates using XRD and DTA methods
Author(s) -
Farzet Bikić
Publication year - 2009
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind0902115b
Subject(s) - differential thermal analysis , chloride , materials science , corrosion , hydrate , cement , reinforcement , chemical engineering , metallurgy , diffraction , composite material , chemistry , organic chemistry , physics , optics , engineering
The reactions of chlorides binding to aluminates were investigated by analyzing the monochloroaluminate hydrate, product of the reaction. The results show that the product is formed in the fresh concrete, after adding chloride within the stage of the preparation of concrete, as well as adding chlorides by penetration from the environment into the concrete. The obtained results are significant, considering the aspect of preventing corrosion of the steel reinforcement into the concrete. It is known that only free chlorides activate corrosion processes in the steel reinforcement in concrete. The process of chloride bonding is followed by X-ray diffraction (XRD) and differential thermal (DTA) analysis of samples of the cement paste, which is the process of preparation and care is described in detail in this work