Aggregates

Tensile strength by bending CEM II

7 days

21 days

28 days

Natural sand

Average

2.92

3.07

3.74

IC (95%)

[1.85 - 3.99]

[1.97 - 4.18]

[2.17 - 5.31]

Standard deviation

1.09

1.13

1.60

Improved sand

Average

4.89

5.33

5.56

IC (95%)

[4.82 - 4.95]

[4.69 - 5.97]

[4.84 - 6.27]

Standard deviation

0.06

0.57

0.63