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Chemical effects on cement mortar of calcium magnesium acetate as a deicing salt
Two different products of calcium magnesium acetate (CMA) were tested. Their molar ratios Ca/Mg, were 1.26 and 0.91 respectively. Both products were used as concentrated solutions. In addition, the 0.91 product was also used in a solution, which was diluted so that its freezing point depression was as great as that of a 3 percent by mass sodium chloride solution. Prisms of 0.60 mortar expanded more in a concentrated solution of 1.26 CMA than in one of 0.91 CMA. The loss of mass in mortar on immersion in concentrated solutions was more rapid in 0.91 CMA than in 1.26 CMA, and much more rapid at + 20 than at + 5 deg C. Immersion in the dilute CMA caused an increase of the mass during the first six months. With respect to the flexural and compressive strength, the dilute solution of 0.91 CMA caused the greatest decreases. However, in several cases the compressive strength after immersion in concentrated solution could not be determined.
Chemical effects on cement mortar of calcium magnesium acetate as a deicing salt
Two different products of calcium magnesium acetate (CMA) were tested. Their molar ratios Ca/Mg, were 1.26 and 0.91 respectively. Both products were used as concentrated solutions. In addition, the 0.91 product was also used in a solution, which was diluted so that its freezing point depression was as great as that of a 3 percent by mass sodium chloride solution. Prisms of 0.60 mortar expanded more in a concentrated solution of 1.26 CMA than in one of 0.91 CMA. The loss of mass in mortar on immersion in concentrated solutions was more rapid in 0.91 CMA than in 1.26 CMA, and much more rapid at + 20 than at + 5 deg C. Immersion in the dilute CMA caused an increase of the mass during the first six months. With respect to the flexural and compressive strength, the dilute solution of 0.91 CMA caused the greatest decreases. However, in several cases the compressive strength after immersion in concentrated solution could not be determined.
Chemical effects on cement mortar of calcium magnesium acetate as a deicing salt
Chemische Einflüsse des Enteisungssalzes Calciummagnesiumacetat auf den Zementmörtel
Peterson, O. (author)
Cement and Concrete Research ; 25 ; 617-626
1995
10 Seiten, 9 Bilder, 3 Tabellen, 5 Quellen
Article (Journal)
English
Chemical Effects of Cement Mortar of Calcium Magnesium Acetate as a Deicing Salt
| Online Contents | 1995
Chemical Effects of Cement Mortar of Calcium Magnesium Acetate as a Deicing Salt
| British Library Online Contents | 1995
Calcium magnesium acetate and sodium chloride as highway deicing salts
| Tema Archive | 1989