Cementing systems based on calcium aluminate cement (CAC) have been studied as an alternative cement matrix for the encapsulation of intermediate level wastes (ILW) arising from the nuclear industry. CAC-based systems have great potential for the incorporation of aluminium containing ILW owing to the near-neutral internal pH of these binders. However, CAC-based binders usually undergo phase con...

Synthesis of mesoporous materials with a bimodal pore size has always been of great importance for size-selective separation process. Especially, ordered mesoporous cubic MCM-48 with its highly interwoven and branched pore structure, is a potential separation material in applications similar to which zeolites are now being used. This material could have specific technological advantages because...

In this work, we report the transfer of alkyl bis- and tris(pyrazolyl)aluminates metalloligands to an electron-rich organotransition metal center. The 16-electron heterobimetallic complexes rhodium [Rh(COD){Al(Ph2pz)2Me2}] (3) [Rh(COD){Al(Ph2pz)3Me}] (4) were obtained by metathesis reaction sodium (1) tris(pyrazolyl)aluminate (2) with [RhCl(COD)]2. For 3, 1H 13C NMR in solution along DFT calcul...

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 8...

Abstract The study was conducted to investigate the feasibility of sodium aluminate activation nonferrous waste foundry sand. aim solidify sand via geopolymerisation into useful civil engineering materials. Green mixed with make a paste which filled 50 × mm 3 mold. mixture cured in an oven for 5 days. concentration aluminate, granulated blast furnace slag (GBFS) : (WFS) ratio, liquid solid rati...

One-pot solvothermal synthesis of a robust tetranuclear sodium hexakis(glycolato)tris(methanolato)aluminate complex Na3[Al4(OCH3)3(OCH2CH2O)6] via a modified yet rigorous base-catalyzed transesterification mechanism is presented here. Single crystal X-ray diffraction (SCXRD) studies indicate that this unique Al complex contains three penta-coordinate Al3+ ions, each bound to two bidentate ethyl...

Article history: Received 18 June 2014 Accepted 7 May 2015 Available online xxxx