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Table 1 Chemical composition and content of fly ash

From: Performance and working mechanism of tension–compression composite anchorage system for earthen heritage sites

Constitution

SiO2

Al2O3

Fe2O3

CaO

MgO

K2O + Na2O

Ignition loss

Mass fraction (%)

54.11

34.44

5.34

0.69

0.70

1.23

1.08