Article ID Journal Published Year Pages File Type
6723347 Construction and Building Materials 2014 6 Pages PDF
Abstract
Calcium silicate hydrate is synthesized from steel slag by adding lime and quartz by dynamic hydrothermal method at 185 °C. The products mainly consist of disordered calcium silicate hydrate, but more crystallized phase such as 11 Å-tobermorite forms for the presence of inorganic admixtures. The formation of tobermorite is affected by the types of ions according to XRD and FTIR results. Adding 2% crystallized tobermorite is beneficial to form the ordered structure; alkali cations and SO42− anions are effective accelerators; Al3+ plays a role of stabilization during the reaction. The products also vary with the initial alkalinities of steel slag.
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Physical Sciences and Engineering Engineering Civil and Structural Engineering
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