A5069067252- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Magnesium Oxide Properties and Applications
- Recycling and utilization of industrial and municipal waste in materials production
- Advanced ceramic materials synthesis
- Grouting, Rheology, and Soil Mechanics
- Advanced Photocatalysis Techniques
- Recycled Aggregate Concrete Performance
- Advanced oxidation water treatment
- Rock Mechanics and Modeling
- Building materials and conservation
- Concrete Properties and Behavior
- Geotechnical and construction materials studies
- Analytical Chemistry and Sensors
- Nuclear materials and radiation effects
- Electrochemical Analysis and Applications
- TiO2 Photocatalysis and Solar Cells
- Bauxite Residue and Utilization
- Clay minerals and soil interactions
- Innovations in Concrete and Construction Materials
- Carbon Nanotubes in Composites
- Geomechanics and Mining Engineering
- Drilling and Well Engineering
- Calcium Carbonate Crystallization and Inhibition
- Natural Fiber Reinforced Composites
Universiti Malaysia Perlis
2016-2025
Depending on the processing conditions, geopolymers can exhibit a wide variety of properties and characteristics. Curing profile serves as crucial parameter in synthesis geopolymers. In this paper, influence curing temperature time kaolin-based geopolymer was studied. The samples were separated into several conditions; including at ambient temperature, 40 °C, 60 80 °C 100 for 1 day, up to 3 days. compressive strength SEM analysis products evaluated. Results showed that condition has...
Abstract This paper presents a comparative study of the characteristic unfoamed and foamed geopolymers after exposure to elevated temperatures (200–800 °C). Unfoamed were produced with Class F fly ash sodium hydroxide liquid silicate. Porous prepared by foaming hydrogen peroxide. possessed excellent strength 44.2 MPa degraded 34% 15 in geopolymers. The decreased 5 increasing temperature up 800 °C. Foamed behaved differently whereby they deteriorated 3 at 400 °C increased 11 Even so, could...
In this paper, the thermal performance of ground-granulated blast furnace slag (GGBFS) geopolymers is investigated. The were prepared with sodium-based alkali activator and exposed to elevated temperature (200 1000°C) after 28 d curing at room temperature. unexposed exhibited excellent compressive strength 95 MPa. reduced 8·9 MPa 800°C increased 19·8 1000°C. regained by 122·5% as compared residual 800°C. crack reduction partial melting in treated 1000°C signifies healing temperature, which...
This paper presents the formulation of fly ash (FA) geopolymer and incorporation ladle furnace slag (LFS) as a replacement to FA in formation. The LFS was set at 10–40 wt.%. formed by mixing with sodium-based alkali activator. had compressive strength 38.9 MPa optimum 8 M NaOH concentration, AS/AA ratio 3, AA 1.5. affected more significantly amorphous content. most influential factors affecting properties were: > concentration. Replacing led very little (4.1%) increment strength....
This paper investigates the effect of varying solid alkali activators on fresh and hardened properties microstructural changes one-part geopolymers (OPGs). Single binary were used to activate high calcium fly ash. The either solely sodium metasilicate (Na2SiO3) or a combination aluminate (NaAlO2) (Na2SiO3). OPG activated with anhydrous Na2SiO3 achieved an excellent 28-day compressive strength 83.6 MPa while NaAlO2 attained 45.1 MPa. Na2SiO3-activated demonstrated better fluidity than due...
The properties of amorphous geopolymer with silica fume addition after heat treatment was rarely reported in the field. Geopolymer prepared by mixing fly ash and alkali activator. added 2% 4% weight. samples were cured at room temperature for 28 days before exposed to an elevated up 1000 °C. incorporation did not cause significant improvement compressive strength unexposed geopolymer. Higher content reduced When subjected temperature, retained higher caused a lower degree shrinkage...
The formulation and flexural properties of thin fly ash geopolymers with thickness merely 10 mm replacement ladle furnace slag to in geopolymer were presented. was discussed terms NaOH molarity, solid aluminosilicates-to-liquid alkali activator (S/L) mass ratio, (Na2SiO3/NaOH) ratio. Thin strength Young's modulus 6.2 MPa 0.14 GPa, respectively, obtained by using 12 M NaOH, S/L ratio 2.5 Na2SiO3/NaOH 4.0. A high implemented for synthesis produce a more viscous slurry which helped retain the...
Dolomite is a raw carbonate mineral rich in contents with calcium, magnesium and oxide compounds also including other minor impurities from compounds. It could be easily found sedimentary rock which most likely known as dolostone associated limestone chalk carbonates. This has been used variety of industries agricultural, metallurgy, constructions, biomass others. Currently, there are abundant sources local dolomite minerals but have very limited applications when compared to types minerals....