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Table 2 Compressive strengths and tensile strength of GMT_0, GMT_0.01, GMT_0.03, GMT_0.05, and GMT_0.1 composites at the curing age of 3, 7, 21, 28 and 77 days, respectively.

From: The Mechanical and Thermal Properties of Cement CAST Mortar/Graphene Oxide Composites Materials

The curing age

Samples

GMT_0

GMT_0.01

GMT_0.03

GMT_0.05

GMT_0.1

Compressive strengths (MPa)

 3 days

6.954 ± 0.212

7.882 ± 0.127

8.635 ± 0.122

8.819 ± 0.225

8.344 ± 0.292

 7 days

8.107 ± 0.097

9.126 ± 0.496

10.037 ± 0.044

11.084 ± 0.620

10.467 ± 0.780

 21 days

9.631 ± 0.099

10.524 ± 0.070

10.871 ± 0.178

11.641 ± 0.157

10.389 ± 0.311

 28 days

8.864 ± 0.191

9.533 ± 0.618

10.676 ± 0.721

11.763 ± 0.352

11.004 ± 0.802

 77 days

9.936 ± 0.756

9.631 ± 1.776

13.262 ± 0.299

13.282 ± 0.132

13.268 ± 0.235

Tensile strength (MPa)

 3 days

1.067 ± 0.033

1.169 ± 0.075

1.171 ± 0.045

1.073 ± 0.056

1.098 ± 0.103

 7 days

0.844 ± 0.107

0.916 ± 0.107

1.108 ± 0.081

1.363 ± 0.046

1.068 ± 0.046

 21 days

1.349 ± 0.103

1.555 ± 0.192

1.571 ± 0.157

1.442 ± 0.047

1.359 ± 0.040

 28 days

1.215 ± 0.141

1.351 ± 0.166

1.456 ± 0.152

1.445 ± 0.142

1.318 ± 0.043

 77 days

1.267 ± 0.244

1.091 ± 0.055

1.166 ± 0.168

0.149 ± 0.051

1.312 ± 0.015