The structure and chemistry of magnesium silicate hydrates (M-S-H) is significantly different from calcium silicate hydrates (C-S-H), although both phases are poorly crystalline and have a variable chemical composition. The molar Ca/Si ratio in synthetic C-S-H varies from approximately 0.7 to...
Magnesium and calcium silicate hydrates, part I: Investigation of the possible magnesium incorporation in calcium silicate hydrate (C-S-H) and of the calci... Magnesium and calcium silicate hydrates, part I: Investigation of the possible magnesium incorporation in calcium silicate hydrate (C-S-H)...
TSA has more deterioration than ettringite or gypsum form of sulfate attack because it targets the calcium silicate hydrates (C-S-H) which is the main binder phase in all Portland cement-based materials. By means of physical and mechanical property testing as well as erosion phases analysis, ...
The Al-nuclear magnetic resonance (AMR) analysis suggested that lime addition effectively activated the hydration of clay by producing hydrates (i.e. calcium alumina and calcium silicate) while limestone further promoted the polymerization of hydrates via the transformation of metastable hydroxyl-rich ...
Hydration of tricalcium silicate in hydrothermal conditions in the presence of magnesium oxide has shown changes in the formation of CSH gel structure (Calcium silicate hydrates). The new CSH incorporates magnesium ions, brucite, but a weak presence of portlandite. The magnesium oxide would hinder th...
MgCl2, a salt; colorless crystals. Density, 2.316 g/cm3; melting point, 713°C; boiling point, 1412°C. It is extremely hygroscopic; its solubility in water at 20°C is 35.3 percent (by weight). It forms crystalline hydrates with one, two, four, six, eight, and 12 water molecules. ...
Calcium ...: 0.7% max Iron ...: 25 ppm max Heavy Metals ...: 5 ppm max Magnesium chloride is the name for the chemical compounds with the formulas MgCl2 and its various hydrates MgCl2-(H2O)x. These salts are typical ionic halides, being highly soluble in water. The hydrated material...
silicate from which it formed, resulting in the release of calcium and other cations to pore waters25. Many authigenic aluminosilicate formation reactions occur in marine sediments, but in all of these reactions, the products are primarily cation-rich clays with high surface areas and high cation ...
Resistance to water depends upon the transformation of the hydroxychloride hydrates to the insoluble carbonates and can be improved by the incorporation of certain additives. These additives can be inorganic, such as phosphates, borax and calcium sulfate-silicate mixtures, or organic, such as resins,...
Via studying hydrothermal reaction ofhigh-MgO low-alkalinity steel slag, the results indicate,high-MgO low-alkalinity steel slagformed Mg-rich calcium silicate which has cementitious characteristics hydrates under hydrothermal condition, so we can conclude it has hydrothermal activity. ...