Table 2 Chemical composition used micro-bentonite (MB).

From: Micro- and nano- bentonite to improve the strength of clayey sand as a nano soil-improvement technique

Chemical compound (Oxide)

Weight content (%)

Na20

1.94

MgO

3.23

Al2O3

15.08

SiO2

51.58

SO3

0.74

CL

0.57

K2O

1.31

CaO

6.11

TiO2

0.47

Fe2O3

2.97

BaO

2.35

L.O.I

13.65

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