2021年3月1日 · To illustrate the robustness of the edxia approach, a CEM I Ordinary Portland Cement (OPC) and blended system were chosen as examples of cementitious microstructures with different levels of complexity. More specifically, the blended system is a limestone calcined clay (LC3) cement paste [22].

The results show that the quantities of ettringite and carbo-aluminate phases significantly reduce when LC 3 is cured at 50°C. EDX analysis shows that significant quantities of aluminate are taken up in C-AS -H, when curing is done at a higher temperature.

2022年3月1日 · In this paper, a detailed study of phase assemblage, porosity evolution and microstructural development was conducted on LC 3 samples hydrated up to 3 years and compared to 90 days specimens. It was observed that the reaction of clinker phases and metakaolin continues between 90 days and 3 years, even after depletion of portlandite.

2017年10月28日 · The results are supported by compositional analysis of the microstructure by Energy Dispersive X-ray (EDX) analysis and X-Ray Diffraction (XRD). The durability potential of this improved microstructure development seen in LC3 and its effect on the chloride ingress in comparison with OPC and FA30 concretes after an extended period of curing (1 ...

2019年10月20日 · Additional ettringite is formed when gypsum content is increased in LC 3. The limestone reactivity reduces when gypsum is increased in LC 3. This study aims to understand the impact of calcined clay, limestone and gypsum on the hydration mechanisms and phase development in limestone calcined clay cement (LC 3).

2019年8月24日 · The results show that the quantities of ettringite and carbo-aluminate phases significantly reduce when LC3 is cured at 50 °C. EDX analysis shows that significant quantities of aluminate are taken up in C–A–S–H, when curing is done at a higher temperature.

The results show that the quantities of ettringite and carbo-aluminate phases significantly reduce when LC 3 is cured at 50°C. EDX analysis shows that significant quantities of aluminate are taken up in C-AS -H, when curing is done at a higher temperature.

2024年9月16日 · Limestone calcined clay cement (LC 3) is emerging as an alternative to Portland cement, offering economic advantages, reduced CO 2 emissions, and mechanical properties on par with Portland cement. Central to the effective utilization of LC 3 is understanding how the fineness of its components affects its performance.

2022年3月15日 · In this paper, we use SEM-EDX hypermaps to quantify the chloride sorption in hydrated an C3S paste, after equilibrium in solutions of chloride salts (NaCl, KCl, CaCl2, MgCl2), with and without...

2024年4月20日 · A field emission scanning electron microscopy (FESEM – ULTRA 55 Zeiss Oxford instruments), containing an X-ray energy dispersive detector (EDX, Oxford Instruments), was used to assess the microstructure of pastes.