2022
DOI: 10.32604/jrm.2022.019258
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Preparation and Performance of Ternesite-Ye’Elimite Clinker Produced from Steel Slag at Lower Temperature

Abstract: Ternesite (4CaO•2SiO 2 •CaSO 4 )-Ye'elimite (3CaO•3Al 2 O 3 •CaSO 4 ) (simplified as TY) cement clinker was successfully prepared from steel slag at 1200°C in this study. XRD, TG/DSC and SEM were used to analyze the mineral composition and hydration products of the TY clinker. The sintering process and hydration mechanism of the TY clinker were investigated. Results show that a large amount of ternesite and ye'elimite have been formed at 1200°C, while ternesite has not been decomposed. Clinker minerals include… Show more

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Cited by 3 publications
(2 citation statements)
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“…The addition of Na 2 O caused a significant decrease in the strength of TCSA cement at 3 d and 7 d. This may be associated with the phase composition of TCSA clinker. The early strength of TCSA cement may mainly depend on the hydration of ye'elimite with calcium sulfate [21]. The addition of Na 2 O caused a much lower content of anhydrite, which may decrease the early strength of TCSA cement.…”
Section: Compressive Strengthmentioning
confidence: 99%
See 1 more Smart Citation
“…The addition of Na 2 O caused a significant decrease in the strength of TCSA cement at 3 d and 7 d. This may be associated with the phase composition of TCSA clinker. The early strength of TCSA cement may mainly depend on the hydration of ye'elimite with calcium sulfate [21]. The addition of Na 2 O caused a much lower content of anhydrite, which may decrease the early strength of TCSA cement.…”
Section: Compressive Strengthmentioning
confidence: 99%
“…Ji et al determined the best sintering temperature and sintering time of belite-ye'elimite-ternesite cement clinker by setting a temperature point every 30 • C (1150-1300 • C) and setting every hour (1-6 h) [20]. This clinker could be obtained by sintering at 1210 • C for 2 h. Li et al prepared ternesite-ye'elimite clinker from steel slag at 1200 • C [21]. The iron phase from steel slag can promote the formation of the liquid phase, and can thereby result in the coexistence of ternesite and ye'elimite.…”
Section: Introductionmentioning
confidence: 99%