Research Article
Response Surfaces for Fresh and Hardened Properties of Concrete with E-Waste (HIPS)
Table 17
Validation of the response surface model (25% HIPS, 0.49 W/C ratio).
| | Properties | Experiment | Predicted |
| | Slump (mm) | 17.00 | 16.64 | | Fresh density (kg/m3) | 2469.12 | 2472.61 | | Dry density (kg/m3) | 2291.65 | 2285.02 | | 7-day compressive strength (MPa) | 21.66 | 21.84 | | 28-day compressive strength (MPa) | 31.62 | 30.26 | | 7-day split tensile strength (MPa) | 1.97 | 1.98 | | 28-day split tensile strength (MPa) | 2.35 | 2.44 | | 7-day flexural strength (MPa) | 4.72 | 4.75 | | 28-day flexural strength (MPa) | 5.52 | 5.43 |
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