Research Article
Performance Evaluation of Waste Crumb Rubber/Silica Fume Composite Modified Pervious Concrete in Seasonal Frozen Regions
Table 1
Technical index of superplasticizer.
| | Uniformity parameters | Properties parameters |
| | Morphology | Liquid | Water-reducing rate (%) | 25 | | pH | 7.0–8.0 | Air content (%) | 1.5 | | Density (kg/m3) | 0.98–1.02 | Difference between initial setting times (min) | +35 | | Effective content (%) | 20–25 | Difference between final setting times (min) | +50 | | Chloride ion content (%) | 0.01 | 7 d compressive strength ratio (%) | 163 | | Alkali content (%) | 0.02 | 28 d compressive strength ratio (%) | 159 |
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