Cementitious materials containing admixtures such as industrial waste or by-products is highly expected for environment and sustainable development. These materials have problems with slow hydration, and the use of a hydration accelerator is an effective solution. Therefore, in this study, authors focused on synthesized C-S-H among hydration accelerators, detailed characterization was carried out on the synthesized C-S-H with different Ca/Si ratio(C/S), and the effect of this C-S-H on the initial hydration reaction of alite was investigated. As a result, it was elucidated that seeding greatly influences the precipitation of C-S-H rather than the dissolution of alite. Moreover, it was confirmed that addition of synthesized C-S-H with low C/S promotes initial C-S-H precipitation, while hydration rate and amount of C-S-H precipitation at the late hydration stage and MCL of generated C-S-H don't depend on C/S of synthesized C-S-H. According to these results, addition of synthesized C-S-H with low C/S to cementitious materials may be solve the problem of initial strength of cementitious materials using admixtures such as industrial waste or by-products.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.