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Now showing items 11-20 of 30
Fire resistance evaluation of lightweight geopolymer concrete system exposed to elevated temperatures of 100-800 °C
(Trans Tech Publications, 2014)
This paper reports the fire resistance property of a lightweight aggregate geopolymer concrete (LWAGC) material synthesized by the alkali-activation of locally source fly ash (FA) after exposed to elevated temperatures ...
A study of liberation and separation process of metals from printed circuit boards (PCBS) scraps
(Trans Tech Publications, 2013-12)
Since the metallic elements are covered with or encapsulated by various plastic or ceramic materials on printed circuit boards (PCBs), a pre-treatment process allowing their liberation and separation is first needed in ...
A study on relationship between porosity and compressive strength for geopolymer paste
(Trans Tech Publications, 2013-12)
This paper presents a study on the relationship between porosity and compressive strength for geopolymer paste. In this research, geopolymer paste was made from fly ash class F based geopolymer mixed with alkaline activator; ...
Compressive strength and morphology of fly ash based geopolymer as artificial aggregate with different curing temperature
(Trans Tech Publications, 2014)
This paper presented the compressive strength of geopolymer paste with different NaOH concentration and morphology analysis for sintered artificial aggregate. This artificial aggregate was produce based on mix design with ...
Electronic structure, electronic charge density and optical properties of 3-methyl-1,4-dioxo-1, 4-dohydronaphthalen-2-yl-sulfanyl (C₁₃H₁₀O₄S)
(ESG, 2014)
The atomic positions of 3-methyl-1,4-dioxo-1, 4-dohydronaphthalen-2-yl-sulfanyl (3MDS) single crystal taken from XRD data were optimized by minimizing the forces. We make use of the optimized geometry as a starting point ...
Alkali activated blast-furnace slag cement: The opportunity to solve sustainable issues
(American-Eurasian Network for Scientific Information, 2013)
This paper aimed at investigating the possibility of alkali activated blast-furnace
slag (BFS) to produce cement powder that could be alternative to ordinary Portland
cement. It was found that an alkali activated BFS ...
Structural, electronic and optical properties in earth-abundant photovoltaic absorber of Cu₂ZnSnS₄ and Cu₂ZnSnSe₄ from DFT calculations
(ESG, 2014)
DFT analyses of band structure dispersion and of contribution of different anionic sub-groups to the studied electronic structure together with the anisotropy of optical
functions were performed for the two promising solar ...
New processing method of kaolin-based geopolymer brick by using geopolymer brick machine
(Trans Tech Publications, 2014-01)
With increased activity in construction, deficiency of building materials and construction waste improvements have encouraged the development of new building materials. Conventional construction bricks are usually made ...
Physicochemical properties of pyrolitic carbon black from waste tyres
(Trans Tech Publications, 2014)
Waste tyres which are mainly generated from automotive industries have become a major environmental problem to the local authorities, the tyre industries and tyre dealer. When tyres are no longer usable due to worn-out, ...
NaAuS chicken-wire-like semiconductor: electronic structure and optical properties
(Elsevier, 2014-01)
The electronic structure, charge density and optical properties of NaAuS a chicken-wire-like semiconductor was calculated using full potential linear augmented plane wave based on density functional theory. The Ceperley-Alder ...