Abstract
The production and characterization of a cement and mortar based on the alkaline activation of a high content (≥70%) of natural volcanic pozzolan (NP) and the synergic effect of the addition of granulated blast furnace slag (GBFS) up to 30% were performed. NaOH and a mixture of NaOH+Na2SiO3 were used as activators. The results of this study highlight the possibility of obtaining a binder with a compressive strength of up to 125MPa at 28days of curing (25°C). The optimal alkaline cement that was obtained can be categorized as GU- and LH-type cement according to the ASTM C1157 standard.
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