Ключевые слова:
Concrete admixtures, Concretes, Mortars, Grouting, Construction materials, Cement and concrete technology, Chemical analysis and testing, Determination of content, Alkalis, Sodium, Potassium, Liquids, Particulate materials, Atomic absorption spectrophotometry, Absorption spectrophotometry, Flame photometry, Test equipment, Calibration, Quantitative analysis