Transport properties of fly ash-slag-based geopolymer concrete with 2M sodium hydroxide combined with variations in slag percentage, Al/Bi ratio, and SS/SH ratio

E.S. Sunarsih; S. As'ad; A.R. Mohd.Sam; S.A. Kristiawan

doi:10.3989/mc.2024.359623

Autores/as

E.S. Sunarsih Department of Civil Engineering, Faculty of Engineering, Sebelas Maret University https://orcid.org/0000-0002-3788-6840
S. As'ad Department of Civil Engineering, Faculty of Engineering, Sebelas Maret University, https://orcid.org/0000-0002-4990-3038
A.R. Mohd.Sam UTM Construction Research Centre, Institute for Smart Infrastructure and Innovative Construction, Faculty of Civil Engineering, Universiti Teknologi Malaysia, https://orcid.org/0000-0002-3937-1138
S.A. Kristiawan Department of Civil Engineering, Faculty of Engineering, Sebelas Maret University https://orcid.org/0000-0002-0312-4960

DOI:

https://doi.org/10.3989/mc.2024.359623

Palabras clave:

Molaridad de hidróxido de sodio, Porosidad, Sortividad, Permeabilidad al cloruro, Geopolímero basado en cenizas volantes y escorias

Resumen

El objetivo de esta investigación es determinar el efecto de la molaridad de hidróxido de sodio 2M combinado con variaciones en el porcentaje de escoria, la relación de activador alcalino/binder (Al/Bi) y la relación de silicato de sodio/hidróxido de sodio (SS/SH) sobre las propiedades de transporte del GPC a base de escoria y cenizas volantes curado a temperatura ambiente. Los resultados indican que un aumento en el porcentaje de escoria y en la relación SS/SH conducen a una disminución de la porosidad, la tasa de absorción de agua y la permeabilidad al cloruro. La proporción de activador alcalino/binder (Al/Bi) de 0,45 produce disminuciones en la porosidad, la tasa de absorción de agua y la permeabilidad al cloruro. La porosidad, la sortividad y las profundidades de penetración de cloruro de todos los GPC son menores que las del OPC. Las composiciones de mezcla recomendadas para GPC que exhiben propiedades de transporte más bajas que el OPC son GPC4 (escoria 40 %, relación SS/SH 1,5, relación Al/Bi 0,45); GPC5 (escoria 50 %, relación SS/SH 1,5, relación Al/Bi 0,45); y GPC7 (escoria 30%, relación SS/SH 2,0, relación Al/Bi 0,45).

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Biografía del autor/a

S. As'ad, Department of Civil Engineering, Faculty of Engineering, Sebelas Maret University,

Department of Civil Engineering, Faculty of Engineering, Sebelas Maret University, Indonesia.

Citas

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