Sample properties after 18 d exposure to sulfuric acid at 90°C (pH 2·5 for 6 d followed by pH 0·5 for 12 d)
| Weight change: % | Diameter change: % | Compressive strength: MPa | Corrosion depth: mm | ||
|---|---|---|---|---|---|
| Before acid exposure | After acid exposure | ||||
| TSRC-1 | − 0·3 | − 0·79 | 18·0 ± 0·7 | 18·0 ± 2·0 | 0·68 |
| TSRC-2 | − 1·12 | − 0·02 | 13·9 ± 1·3 | 16·3 ± 1·7 | 0·44 |
| TSRC-3 | − 1·79 | − 1·65 | 11·2 ± 1·9 | 14·7 ± 2·3 | < 0·5 |
| TSRC-4 | − 3·17 | − 0·85 | 12·7 ± 2·1 | 21·2 ± 4·5 | < 0·5 |
| Class G/silica | + 3·83 | + 1·88 | 17·4 ± 0·7 | 20·5 ± 0·6 | 1·97 |
| CPC | − 3·20 | − 1·7 | 25·3 ± 1·6 | 24·6 ± 6·5 | 0·86 |
| Weight change: % | Diameter change: % | Compressive strength: MPa | Corrosion depth: mm | ||
|---|---|---|---|---|---|
| Before acid exposure | After acid exposure | ||||
| TSRC-1 | − 0·3 | − 0·79 | 18·0 ± 0·7 | 18·0 ± 2·0 | 0·68 |
| TSRC-2 | − 1·12 | − 0·02 | 13·9 ± 1·3 | 16·3 ± 1·7 | 0·44 |
| TSRC-3 | − 1·79 | − 1·65 | 11·2 ± 1·9 | 14·7 ± 2·3 | < 0·5 |
| TSRC-4 | − 3·17 | − 0·85 | 12·7 ± 2·1 | 21·2 ± 4·5 | < 0·5 |
| Class G/silica | + 3·83 | + 1·88 | 17·4 ± 0·7 | 20·5 ± 0·6 | 1·97 |
| CPC | − 3·20 | − 1·7 | 25·3 ± 1·6 | 24·6 ± 6·5 | 0·86 |
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