Table 6.
Durability of sulfur concrete.
| Sample Number | Test | Requirements | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Freeze–Thaw (FT) Resistance | ||||||||||
| Compressive strength reference samples MPa (psi) | Compressive strength tested samples MPa (psi) | Strength loss in comparison to reference samples (%) | Number of performed cycles | Water absorption after 24 h (%) | ||||||
| 2 | 57.0 (8257) | 31.2 (4525) | 45 | 198 | 0.47 | Strength loss in comparison to reference samples max. 20% and no visible cracks | ||||
| 3 | 56.1 (8137) | 36.3 (5265) | 35 | 211 | 0.07 | |||||
| 4 | 49.6 (7194) | 26.9 (3902) | 46 | 100 | 0.35 | |||||
| Freeze–Thaw (FT) Resistance in 3% Salt Solution (Scaling) | ||||||||||
| Mass of scaled material after 28 cycles (m28) (g) |
Mass of scaled material after 56 cycles (m56) (g) |
Mass of scaled material after 28 cycles (m28) (kg/m2) |
Mass of scaled material after 56 cycles (m56) (kg/m2) |
|||||||
| 1A | 1.50 | 2.51 | 0.16 | 0.26 | FT2 m28 ≤ 0.5 m56 ≤ 1.0 (kg/m2) |
|||||
| 2B | 0.01 | 0.13 | 0 | 0.01 | ||||||
| 3B | 0.03 | 0.11 | 0 | 0.01 | ||||||
| 4B | 0.07 | 0.36 | 0.01 | 0.04 | ||||||
| Böhme’s Plate Abrasion Tests | ||||||||||
| Sample mass loss (g) |
Sample volume loss (g/mm3) | Results (mm3/5 000 mm2) |
||||||||
| 1 | 23.37 | 10 260 | 10 095 | Class 4 ≤ 18,000 | ||||||
| 2 | 30.35 | 13 239 | 13 276 | |||||||
| Wide Wheel Abrasion Tests—Width of Groove | ||||||||||
| Man value (mm) |
Results correlated to calibration sample (mm) |
|||||||||
| 2 | 15.1 | 20.0 | Class 4 ≤ 20 mm | |||||||
| 3 | 14.4 | 19.0 | ||||||||
| 4 | 15.0 | 19.5 | ||||||||
1—control sample; A—surface cut with a saw, exposed aggregate; B—mold surface.