Now showing items 1-7 of 7

    • 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 ...
    • Durability of geopolymer lightweight concrete infilled LECA in seawater exposure 

      Rafiza, Abd Razak; Mohd Mustafa Al Bakri, Abdullah; Zarina, Yahya; M. S. A. Hamid (IOP Publishing Ltd, 2017-11)
      This paper describes a development of lightweight concrete using lightweight expanded clay aggregate (LECA) in fly ash (FA) based geopolymer immersed in seawater. The objective of this research is to compare the performance ...
    • The effects of various concentrations of NaOH on the inter-particle gelation of a fly ash geopolymer aggregate 

      Alida, Abdullah; Kamarudin, Hussin; Mohd Mustafa Al Bakri, Abdullah; Zarina, Yahya; Sochacki, Wojciech; Rafiza, Abd Razak; Błoch, Katarzyna; Hamzah, Fansuri (MDPI AG, 2021-02)
      Aggregates can be categorized into natural and artificial aggregates. Preserving natural resources is crucial to ensuring the constant supply of natural aggregates. In order to preserve these natural resources, the production ...
    • 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 ...
    • Paraffin as a phase change material in concrete for enhancing thermal energy storage 

      Rafiza, Abd Razak; Khang Zhe, Adeline Choo; Mohd Mustafa Al Bakri, Abdullah; Zarina, Yahya; Subaer, Junaidi; Khairunnisa, Muhamad; Nurul Aida, Mohd Mortar (IOP Publishing Ltd, 2020-02)
      Phase change material (PCM) for thermal energy storage (TES) is the material that can absorb energy during heating process as phase change takes place and release energy to environment during cooling process. Nowadays, ...
    • Performance of geopolymer concrete when exposed to marine environment 

      Fakhryna Hannanee, Ahmad Zaidi; Romisuhani, Ahmad; Mohd Mustafa Al Bakri, Abdullah; Muhammad Faheem, Mohd Tahir; Zarina, Yahya; Wan Mastura, Wan Ibrahim; Ahmad Syauqi, Sauffi (IOP Publishing Ltd, 2019-07)
      Over the decades, concrete is widely known as the most resourceful construction material as it is suitable for many building applications. However, despite its ability to last hundreds of years in many applications, it has ...
    • Seawater exposure effect on fly ash based geopolymer concrete with inclusion of steel fiber 

      Zarina, Yahya; Mohd Mustafa Al Bakri, Abdullah; Yee Jing, Leow; Long-Yuan, Li; Rafiza, Abd Razak (IOP Publishing Ltd, 2020-02)
      Concrete is widely used in construction offshore such as concrete floating bridges and sea tank. This research is providing an alternative construction material to replace ordinary Portland cement (OPC) concrete known as ...