Research Article
Experimental Study on the Effect of Expansive Agent on the Durability of Concrete in Civil Air Defense Engineering
Table 2
Drying and wetting cycle system.
| Circular system number | Experimental plan |
| S1 | Soaked in 3.5% NaCl for 4 days | Dry for 2 days | Carbonized for 3 days | Cycle 6 times | S2 | Soaked in 3.5% NaCl for 4 days | Dry for 2 days | Carbonized for 5 days | Cycle 6 times | S3 | Soaked in 3.5% NaCl for 4 days | Dry for 2 days | Carbonized for 0 days | Cycle 6 times |
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