Differences between CSA and ASTM
A number of countries, including Japan, Australia, France, Brazil etc., have developed standards for the local use of silica fume. Canada pioneered the development of standards: CAN/CSA A23.5-M86 Supplementary Cementitious Materials, was the first comprehensive national standard that also covered silica fume. Standard Norge – the Norwegian body for standards – published NS 3045 in 1992, which it submitted to…