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Table 2 Chemical analysis of SCMs.

From: Mass Concrete Placement of the Offshore Wind Turbine Foundation: A Statistical Approach to Optimize the Use of Fly Ash and Silica Fume

Chemical analysis (%) Fly ash (FA) Silica fume (SF)
SiO2 55.7 93.4
Al2O3 23.4 0.45
Fe2O3 6 0.25
CaO 0.02
MgO 1 0.79
SO3 0.07 0.46
K2O 3.77 1.27
Na2O 0.61
C 2.98 0.45
Loss on ignition 7 2