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International Journal of Concrete Structures and Materials

Table 3 Ca/Si ratio of the ITZ

From: Effect of Iron Tailings as Fine Aggregate and Mineral Admixture on Strength and Microstructure of Cement Mortar

Distance from interface

Ca/Si

GTR

GFN

GPS

GCD

GBD

GLY

0 μm

1.53

1.50

1.24

0.65

0.98

1.60

25 μm

1.82

1.92

1.76

1.61

1.55

1.84

50 μm

2.56

2.36

2.23

2.12

1.98

2.46

Average

1.97

1.93

1.74

1.44

1.50

1.96

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