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Descripción
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| This study aimed to determine the physical-mechanical, mineralogical and microstructural properties of a pre-industrially manufactured hybrid cement (HYC) containing 5% alkaline activator and less than 30% clinker. The effect of the initial curing temperature (25 ± 1 or 85 °C for 20 h) on hydration kinetics and the development of compressive strength were also explored. The hydration products formed were characterised using XRD, SEM/EDX and 27Al and 29Si MAS-NMR. The findings showed that pre-industrial hybrid cement sets when hydrated with water and hardens to a 28-day mechanical strength of 35 MPa. The main reaction product formed was a mix of cementitious gels: C-(A)-S-H and C-A-S-H. Curing at 85 °C for 20 h, shows a behaviour similar to OPC, inhibited ettringite formation and generated more polymerised gels, enhancing 3-day but not 28- or 90-day mechanical strength. | |
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Internacional
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JCR del ISI
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Si |
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Título de la revista
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Cement and Concrete Composites |
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ISSN
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0958-9465 |
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Factor de impacto JCR
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4,26 |
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Información de impacto
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Volumen
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73 |
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DOI
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10.1016/j.cemconcomp.2016.07.019 |
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Número de revista
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Desde la página
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281 |
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Hasta la página
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288 |
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Mes
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JUNIO |
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Ranking
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