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Environmental Malaysia: History, Sovereignty & Statehood
(Hampstead Psychological Associates, 2020-04)
Malaysia is a federation that was formed by the 1963 Malaysia Agreement which now consists of the Federation of Malaya, Sabah and Sarawak. Prior to the formation of Malaysia, Federation of Malaya already have a constitution ...
Keperluan governan struktur teras Perlembagaan
(Universiti Malaysia Perlis (UniMAP), 2020-07)
Pelbagai suruhanjaya ditubuhkan sama ada untuk melaksanakan fungsi-fungsi tertentu yang ditetapkan di bawah Perlembagaan Persekutuan atau untuk memelihara hak-hak tertentu yang dijamin oleh undang-undang. Dewasa ini kita ...
Insight on the structural aspect of ENR-50/TiO2 hybrid in KOH/C3H8O medium revealed by NMR spectroscopy
(Elsevier, 2020)
The ring-opening reactions (ROR) of epoxide groups in epoxidized natural rubber/titania (ENR-50/TiO2) hybrid in potassium hydroxide/isopropanol medium were examined using NMR spectroscopy and supported by the FTIR technique. ...
A Green Approach to Modify Surface Properties of Polyurethane Foam for Enhanced Oil Absorption
(MDPI AG, 2020-08)
The non-selective property of conventional polyurethane (PU) foam tends to lower its oil absorption efficiency. To address this issue, we modified the surface properties of PU foam using a rapid solvent-free surface ...
Paraffin as a phase change material in concrete for enhancing thermal energy storage
(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, ...
Seawater exposure effect on fly ash based geopolymer concrete with inclusion of steel fiber
(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 ...
Effect of solid-to-liquid ratio on thin fly ash geopolymer
(IOP Publishing Ltd, 2020-02)
The present work studies the effect of solid-to-liquid (S/L) ratio on the properties of thin fly ash-based geopolymer. The fly ash geopolymers with dimension of 160 mm × 40 mm × 10 mm were synthesised by using various S/L ...
Characterisation at the bonding zone between fly ash based geopolymer repair materials (GRM) and ordinary portland cement concrete (OPCC)
(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 ...
Bonding strength characteristics of FA-based geopolymer paste as a repair material when applied on OPC substrate
(MDPI AG, 2020-05)
This investigative study aims to study the mechanical and morphological properties of fly ash (FA)-based geopolymer paste as a repair material when applied on ordinary Portland cement (OPC) overlay concrete. The first part ...
Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration
(IOP Publishing Ltd, 2020-02)
Ceramic materials have demonstrated impressive performance under severe conditions in a wide number of areas including health, energy and environment, transportation and electronic applications. In order to meet the growing ...