Sample | Parameters | ||||
---|---|---|---|---|---|
Force [kN] | Strength [MPa] | Average strength [MPa] (increase) | Young’s modulus [GPa] | Average Young’s modulus value [GPa] (increase) | |
|
88.65 | 31.25 |
|
30.61 |
|
95.69 | 33.84 | 28.74 | |||
87.20 | 30.74 | 27.16 | |||
101.12 | 35.76 | 32.75 | |||
81.74 | 28.91 | 31.24 | |||
|
118.08 | 41.78 |
|
31.52 |
|
113.10 | 40.02 | 30.63 | |||
115.02 | 40.70 | 30.43 | |||
120.45 | 42.62 | 33.23 | |||
115.30 | 40.78 | 33.69 |
Sample | Parameters | |||||
---|---|---|---|---|---|---|
Flexural strength | Compressive strength | |||||
Force [kN] | Strength [MPa] | Average strength [MPa] (increase) | Force [kN] | Strength [MPa] | Average strength [MPa] (increase) | |
|
1.78 | 4.17 |
|
64.55 | 40.34 |
|
60.94 | 38.08 | |||||
1.75 | 4.10 | 62.10 | 38.81 | |||
64.91 | 40.57 | |||||
1.59 | 3.73 | 65.71 | 41.06 | |||
64.84 | 40.52 | |||||
|
1.74 | 4.07 |
|
80.81 | 50.50 |
|
79.94 | 49.96 | |||||
2.23 | 5.22 | 69.80 | 43.65 | |||
79.92 | 49.94 | |||||
1.82 | 4.26 | 80.21 | 50.13 | |||
79.69 | 49.80 |
Average values | |
---|---|
Loss on ignition [%] | 2.99 |
Insoluble residue [%] | 0.81 |
SO3 content [%] | 3.20 |
Cl- content [%] | 0.063 |
Na2O content [%] | 0.75 |
Start of setting time [min] | 217 |
Compressive strength after 2 days [MPa] | 26.5 |
Compressive strength after 28 days [MPa] | 51.4 |
Stability of volume [mm] | 0.80 |
Specific surface area [cm2/g] | 3416 |
Sample | Components | ||||
---|---|---|---|---|---|
Cement [g] | Water for GO dispersion [g] | Remaining water [g] | Sand [g] | Graphene oxide [g] | |
R | 3400 | 0 | 1700 | 10200 | 0 |
GO0.03 | 3400 | 222 | 1478 | 10200 | 1.02 |