Aluminum sulfate shows a positive effect on preventing efflorescence of magnesium potassium phosphate (MKP) cements. Its influence the MKP cement properties and hydration is explored in this study. Compared to reference (Mg/PO4 molar ratio = 4, w/c 0.25), aluminum retards setting, increases compressive strength, has little short-term volume stability. slows down kinetics, decreases pH values, a...

This study included examined of the microbial and chemical content some physical properties bottled water manufacturers locally circulating in city Samarra markets. It was counting number colonies both bacteria fungi, measuring pH value electrical conductivity suspended solids total distress, bio-oxygen demand as well concentrations each calcium, sodium, magnesium, potassium, nitrates, iron, fl...