Research Article
A Study on the Abrasion Resistance of Hydraulic Structures with Different Repair Mortars
Table 3
Results of an ASTM C 1138 underwater abrasion test on coatings.
| ā | Time (hours) | 0 | 12 | 24 | 36 | 48 | 60 | 72 |
| Volume of material lost (m3) | M25 repair mortar | 0 | 0.00007 | 0.00017 | 0.00024 | 0.00033 | 0.00041 | 0.00045 | Silica fume mortar | 0 | 0.00007 | 0.00014 | 0.0002 | 0.00027 | 0.00032 | 0.00038 | Polymer modified mortar | 0 | 0.00003 | 0.00006 | 0.00009 | 0.00011 | 0.00014 | 0.00017 |
| Average depth of abrasion (mm) | M25 repair mortar | 0 | 1.54 | 2.88 | 4.01 | 5.21 | 6.34 | 7.08 | Silica fume mortar | 0 | 0.24 | 0.72 | 1.38 | 1.89 | 2.49 | 3.49 | Polymer-modified mortar | 0 | 0.22 | 0.68 | 1.34 | 1.81 | 2.48 | 2.81 |
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