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. 2017 May 30;10(6):598. doi: 10.3390/ma10060598

Table 1.

Components of the commercial cements used.

Component CEM I CEM III CEM IV
UNE-EN 197-1 Standard [39] Manufacturer Data 1 UNE-EN 197-1 Standard [39] Manufacturer Data 1 UNE-EN 197-1 Standard [39] Manufacturer Data 1
Cement 95–100% 95% 20–34% 31% 45–64% 50%
Limestone - 5% - - - -
Blast-furnace slag - - 66–80% 69% - -
Fly ash - - - - 36–55% 50%

1 Specific percentage of each component usually used according to the manufacturer.