Browsing Rafiza Abd Razak, Dr. by Author "Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi"
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Characterisation at the bonding zone between fly ash based geopolymer repair materials (GRM) and ordinary portland cement concrete (OPCC)
Warid Wazien, Ahmad Zailani; Mohd Mustafa Al Bakri, Abdullah; Mohd Fadzil, Arshad; Rafiza, Abd Razak; Muhammad Faheem, Mohd Tahir; Remy Rozainy, Mohd Arif Zainol; Nabiałek, Marcin; Sandu, Andrei Victor; Wysłocki, Jerzy J.; Błoch, Katarzyna (MDPI AG, 2020-12)In recent years, research and development of geopolymers has gained significant interest in the fields of repairs and restoration. This paper investigates the application of a geopolymer as a repair material by implementation ... -
Durability of fly ash based geopolymer concrete infilled with rubber crumb in seawater exposure
Zarina, Yahya; Mohd Mustafa Al Bakri, Abdullah; S. N. H. Ramli; Minciuna, M. G.; Rafiza, Abd Razak (IOP Publishing Ltd, 2018-06)Geopolymer is an alternative binder to replace Ordinary Portland Cement (OPC)in construction industry. Source materials that rich in silica (Si) and alumina (Al) were activated by using alkaline solution. Production of ... -
Influence of kaolin in fly ash based geopolymer concrete: destructive and non-destructive testing
Zarina, Yahya; Mohd Mustafa Al Bakri, Abdullah; N. Mohd Ramli; Burduhos-Nergis, D. D.; Rafiza, Abd Razak (IOP Publishing Ltd, 2018-06)Development of geopolymer concrete is mainly to reduce the production of ordinary Portland cement (OPC) that adverse the natural effect. Fly ash is a by-product collected from electrical generating power plant which resulted ...