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International Journal of Concrete Structures and Materials

Table 3 Absorption and SiO2 concentration and mass fraction of SiO2 of attapulgite solution.

From: Calcined Attapulgite Clay as Supplementary Cementing Material: Thermal Treatment, Hydration Activity and Mechanical Properties

Clay sample

Average abs

SiO2 concentration (mg/L)

Mass fraction of SiO2 (%)

AT00

0.3880

28.4787

3.56

AT200

0.4790

35.5275

4.44

AT300

1.0727

81.5125

10.19

AT400

1.1443

87.0573

10.88

AT500

2.1854

167.7041

20.96

AT600

0.7103

53.4400

6.68

AT700

0.3247

23.5729

2.95

AT800

0.6353

47.6370

5.95

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