This paper initially fits a comprehensive set of thermodynamic and transport properties charged mobile defects (protons, oxygen vacancies, small polarons) in proton-conducting BaZr 0.8 Y 0.2 O 3− δ (BZY20). The are based on recently published measurements, including conductivity, proton concentrations via Karl–Fischer titration, non-stoichiometry thermogravimetric analysis, all with wide ranges...

The article presents the peculiarities of obtaining superplasticized cementitious systems "Portland cement – fly ash - superplasticizer" to find a rational provision given construction and technical properties concrete. It was studied physico-chemical hydration processes systems. There were solved problems directional formation microstructure stone. Research results show that use allows influen...

Nuclear Magnetic Resonance (NMR) is used to study the early-age hydration as well autogenous shrinkage and drying of cement paste with addition coir fibers. The dosage water content fibers are evaluated. results show that added have a negligible influence on kinetics. However, internal curing effect saturated competition induced by dry visualized. As fiber increases, decrease due reinforcing ef...

background: pancreatitis is a serious complication of endoscopic retrograde cholangiopancreatography (ercp) and may cause significant morbidity and even death. there is no effective prophylactic intervention for patients with average risk yet. this study aims to investigate preventive effect of aggressive hydration for post-ercp pancreatitis. materials and methods: in a double-blind controlled ...

[1] The East Candor Interior Layered Deposit (ILD) has signatures of monoand polyhydrated sulfate in alternating layers that give insight into the processes which formed these layered deposits and on the environmental conditions acting on them since then. We use orbital data to explore multiple hypotheses for how these deposits formed: (1) sulfate-bearing ILDs experience hydration changes on se...

Partial replacement and co-hydration of calcium aluminate cement (CAC) with ladle slag was investigated in this study as a pathway valorizing the reducing economic cost CAC. The impact on physical microstructural properties were analysed using different techniques such mechanical strength test, freeze-thaw, sulfate attack, XRD, SEM etc. Thermodynamic modelling used to predict phase assemblages ...

Only a few studies deals with the alteration of glass by water vapor. This study aims to investigate mechanisms and determine kinetics potash-lime silicate typical Middle Ages. For that, model samples were exposed different conditions (relative humidity -RH-, temperatures) for several durations. The vapor used in experiments was enriched deuterium (D) oxygen-18 (18O). Results show that are high...

Potassium carbonate is a promising salt for thermochemical heat storage. For an application mm-sized hydrate particles are manufactured to be loaded inside reactor. The step towards larger necessary prevent large pressure drop over the reactor bed during hydration/dehydration in given air flow. Therefore, this work systematic study on hydration kinetics of disc shaped (K2CO3) presented first ti...