Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Study on the synthesis of belite-ye’elimite-ternesite clinker
Highlights BYT clinker can be synthesized by a one-step heating protocol. Ternesite is more sensitive to heating temperature than C2S and ye’elimite. The C2S was formed by a two-step reaction in the process of synthesizing BYT clinker.
Abstract Compared with Portland cement (PC) clinker, belite-ye’elimite-ternesite (BYT) clinker has the advantages of low energy consumption and low carbon dioxide emissions. The phase composition and microstructure of BYT clinker were investigated in this paper. The results show that the synthesis parameters of BYT clinker are closely related to the designed phase composition. The synthesis temperature mainly depends on the designed content of ternesite (5CaO.2SiO2.SO3, C5S2$). Prolonging the heating time promotes the formation of dicalcium silicate (2CaO.SiO2, C2S), but has no effect on ye’elimite (4CaO.3Al2O3.SO3, C4A3$) and ternesite. The optimal heating protocol is at around 1210 °C for 1–2 h if the designed contents of C2S, ye’elimite and ternesite are in the range of 20–60 wt%, 20–60 wt% and 5–40 wt% , respectively. The formation of C2S was carried out by the diffusion of CaO with SiO2 as a core.
Study on the synthesis of belite-ye’elimite-ternesite clinker
Highlights BYT clinker can be synthesized by a one-step heating protocol. Ternesite is more sensitive to heating temperature than C2S and ye’elimite. The C2S was formed by a two-step reaction in the process of synthesizing BYT clinker.
Abstract Compared with Portland cement (PC) clinker, belite-ye’elimite-ternesite (BYT) clinker has the advantages of low energy consumption and low carbon dioxide emissions. The phase composition and microstructure of BYT clinker were investigated in this paper. The results show that the synthesis parameters of BYT clinker are closely related to the designed phase composition. The synthesis temperature mainly depends on the designed content of ternesite (5CaO.2SiO2.SO3, C5S2$). Prolonging the heating time promotes the formation of dicalcium silicate (2CaO.SiO2, C2S), but has no effect on ye’elimite (4CaO.3Al2O3.SO3, C4A3$) and ternesite. The optimal heating protocol is at around 1210 °C for 1–2 h if the designed contents of C2S, ye’elimite and ternesite are in the range of 20–60 wt%, 20–60 wt% and 5–40 wt% , respectively. The formation of C2S was carried out by the diffusion of CaO with SiO2 as a core.
Study on the synthesis of belite-ye’elimite-ternesite clinker
Li, Weifeng (Autor:in) / Ji, Daopeng (Autor:in) / Shi, Fei (Autor:in) / Huang, Xiaofei (Autor:in) / Ji, Xiaomin (Autor:in) / Ma, Suhua (Autor:in)
04.12.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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