Table 3 Specimen proportioning scheme.

From: Effect of xanthan gum on mechanical strength and microstructure of Cu (II)-contaminated soil subjected to freeze–thaw cycles

Cu concentration (mg/kg)

XG content (%)

Curing age (day)

Number of freeze–thaw cycles (time)

10,000

0

3, 6, 9, 12

0, 3, 6, 9

1

2

3

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