To explore the relationship between typical components, structure, and properties, provide theoretical guidance for non-reactive aluminate slag, effects of BaO content CaO/Al2O3 (C/A) ratio on microstructure properties slag were investigated with Fourier-transform infrared Raman spectroscopies, hemisphere melting temperature apparatus, rotating viscometer, four-electrode conductivity tester in ...

This paper investigates the hydrated phase assemblage, microstructure, and gel composition of sodium hydroxide (NaOH)-activated fly ash–slag blends with either low-calcium or high-calcium ash. The results show that nature precipitated calcium–aluminosilicate–hydrate (C-A-S-H) alkali aluminosilicate-hydrate (N-A-S-H) depends on ash slag-to-fly ratio. However, regardless ratio, a universal linear...

Vanadium is an important metal used almost exclusively in ferrous and non-ferrous alloys due to its physicochemical and mechanical properties such as grain refinement, high tensile strength, hardness and fatigue resistance; it has a wide range of uses in the metallurgical and chemical sectors [1–3]. There are mainly three kinds of raw materials, bone coal, vanadium slag and waste vanadium catal...

The purpose of this study was to evaluate the physical properties and hydration evolution of calcium aluminate cement (CAC) compositions containing an advanced dispersant. The compressive strength, dimensional change, apparent porosity and quantitative X ray diffraction analysis (XRD) of the cement pastes were carried out over 1-15 days of curing (with the samples immersed in distilled water) a...

We report methodological advances that enhance the phosphorescence efficiency of a blue-emitting calcium aluminate phosphor (CaAl2O4: Eu2+, Nd3+). The investigation of long-persistence blue-emitting phosphors is highly desirable due to their promising applications, such as white LEDs; however, the development of highly efficient blue-emitting phosphors is still challenging. Here, we have quanti...

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...

The effect of calcium treatment on inclusions in H08A welding rod steel was studied by industrial experiment and using thermodynamics theory. effects inclusion composition, morphology, quantity, size before after were metallographic microscope, scanning electron microscope (SEM), energy dispersive spectrometer (EDS). Thermodynamic studies show that the addition can form various forms xCaO·yAl2O...