To safeguard concrete from destruction during freezing, bubbles should have the correct sizing, distribution and volume. ASTM C 260 specifies specifications for air entraining admixtures. According to our experience in cement generation system and product know-how, one or two SikaGrind® products are suggested for plant trials. If required, laboratory pre-trials https://www.tjcyindustrialchem.com/news/cement-additives-and-concrete-admixtures-key-differences.html