This study investigates the hydration behavior and phase evolution of portland cement composites containing montmorillonite (MT) with an objective to address poor dispersion improve physical features chemical reactivity MT through functionalization a non-ionic surfactant (polyethylene glycol ether). After functionalization, exhibited enlarged layer spacing (122%), organic bonds intercalated, im...

Plasma electrolytic oxidation (PEO) treated ceramic coatings were formed in silicate-based electrolytes without and with the addition of Al2O3, on an aluminum alloy. It was found that coating produced electrolyte containing 7 g/L Al2O3 exhibited most superior corrosion properties. The properties 0.5 M 1 NaCl solutions studied by means potentiodynamic polarization electrochemical impedance spect...

This paper discusses the problem of clay shale in construction and need for its improvement. The use geopolymer as a sustainable environmentally friendly solution soil stabilization is presented an alternative to cement-based stabilization. Geopolymers are inorganic aluminum-silicates formed by silicon aluminum can be easily found materials such fly ash mixed with sodium hydroxide silicate. suc...

INTRODUCTION Formocresol has been a popular pulpotomy medicament for many years. It is considered the "gold standard" in pediatric dentistry. However, concerns have been raised over its use in children. It has been reported that formocresol has toxic and mutagenic effects in cell culture, dental crypts, and precancerous epithelial cells. Therefore, additional biocompatible treatment alternative...

This study aimed to investigate the processing parameters and biocompatibility of a novel biphasic dicalcium silicate (C₂S) cement. Biphasic α´L + β-C₂Sss was synthesized by solid-state processing, and was used as a raw material to prepare the cement. In vitro bioactivity and biocompatibility studies were assessed by soaking the cement samples in simulated body fluid (SBF) and human adipose ste...

Electrospinning technology allows fabrication of nano- or microfibrous fibers with inorganic and organic matrix and it is widely applied in bone tissue engineering as it allows precise control over the shapes and structures of the fibers. Natural bone has an ordered composition of organic fibers with dispersion of inorganic apatite among them. In this study, poly (lactic acid) (PLA) mats were f...

a r t i c l e i n f o Keywords: spin crossover intermediate spin quadrupole splitting iron-bearing perovskite lower mantle With the guidance of first-principles phonon calculations, we have searched and found several metastable equilibrium sites for substitutional ferrous iron in MgSiO 3 perovskite. In the relevant energy range, there are two distinct sites for high-spin, one for low-spin, and ...

in this study, rice husk and sodium silicate solution were used to produce particleboards. sodium silicate was used as bonding aid by 25, 20, 15, 10, 5 and zero percent (based on rice husk dry weight). to modify the mechanism of bondability, one percent of 4,4’-diphenylmethane diisocyanate (mdi) was added for every five percent less sodium silicate solution. the effect of diisocyanate on bondab...

A series of inorganic pigments containing iron, aluminum, strontium, and silicate were prepared by the sol-gel method using compounds with different structures morphologies as starting materials. The synthesis was carried out modified citrate method. All powders placed in a muffle furnace calcined air at 1100°C for 6 hours. Powder samples Fe, Sr, Al Si oxides obtained. structure chemical compos...

Purpose.Influence of preheating temperature and sodium silicate solute content in sand-sodium-silicate mixtures structured by SMS-process on their destruction work under knock loading action has been established. Methodology. Quartz sand brand 1K2O202, water, with specific gravity 1.42…1.44 g/cm3 modulus 2.8… 3.0 have used this work. Mixtures structuring realized microwave furnace frequency 2.4...