The fast loss of fluidity sodium silicate-activated slag (SS-AAS) systems have been widely studied in the literature. In this study, rheology these cements has correlated with evolution reaction products formed over time. For purpose, a combination experimental characterization techniques, to study pore solution composition and microstructure SS-AAS pastes thermodynamic calculations applied. in...

Introduction. Marginal seal or adequate marginal adaptation of material along the cavity walls should be able to prevent leakage tissue fluid and consequently bacterial microleakage, terefore, it is considered as significant factor for long term success endodontic treatment. The aim this work was test microleakage newly synthesized nanostructured biomaterials based on calcium aluminate, silicat...

Cement is produced by co-grinding clinker, gypsum and other components defined in the Cement Standards like limestone, pozzolans, fly ash and slag. The grinding is usually performed in horizontal ball mills. Gypsum is typically the basic source of sulphates (SO3) in the cement. The effect of gypsum on the cement quality is critical and twofold. It affects two of the main properties of this prod...

There were investigated properties of WMD, especially metallographic structure, toughness and fatigue strength of welds with various oxygen amount. The connection between the properties of welds with the content of oxygen in WMD were carried out. The research results indicate that it should be limited oxygen content in steel welds. Subsequent researchers could fi nd more precisely the most bene...

OBJECTIVE To evaluate the shear bond strength of a novel calcium aluminate-based cement, EndoBinder (EB), to dentine in comparison with Grey and White Mineral Trioxide Aggregate (MTA). MATERIALS AND METHODS Root canal hemi-sections obtained from 30 extracted molar teeth were embedded in self-polymerized acrylic resin and were grounded wet in order to obtain a flat dentine surface. Next, the r...

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...