The γ-C2S binder was synthesized at 1300 °C.
Mortars based on γ-C2S binder could fully harden within 24 h.
Its flexural and compressive strengths were up to 10.10 MPa and 61.82 MPa, respectively.
Up to 230 kg of CO2 per ton of γ-C2S binder could be sequestered.