Research Article
Automatic Measurement Method of Slump Flow of Cement Paste Based on Dynamic Image Processing Technology
Table 2
Comparison of T200 measurement results of cement paste flowability test
| Water powder ratio | Admixture content (%) | ① Results of observing the pictures (mm) | ② Results of the algorithm in reference [9] (mm) | ③ Results of the algorithm in this paper (mm) | Relative error of ① and ② (%) | Relative error of ① and ③ (%) |
| 0.9 | 0.5 | 4600 | 4337 | 4700 | 5.72 | 2.17 | 0.9 | 0.6 | 3900 | 3750 | 3800 | 3.85 | 2.56 | 0.9 | 0.7 | 3300 | 2971 | 3400 | 9.97 | 3.03 | 1.0 | 0.5 | 3100 | 2664 | 2900 | 14.06 | 6.45 | 1.0 | 0.6 | 2500 | 2499 | 2300 | 0.04 | 8.00 | 1.0 | 0.7 | 2300 | 0 | 2200 | 100.00 | 4.35 | 1.1 | 0.5 | 2000 | 1655 | 2000 | 17.25 | 0.00 | 1.1 | 0.6 | 1300 | 0 | 1400 | 100.00 | 7.69 | 1.1 | 0.7 | 800 | 0 | 900 | 100.00 | 0.13 |
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