| Autor: |
Hansen, Torben C., Hedegard, Soren E. |
| Zdroj: |
Journal of the American Concrete Institute; Jan/Feb1984, Vol. 81 Issue 1, p21-26, 6p |
| Abstrakt: |
Experimental results are reported that show that addition of a plasticizing, an air-entraining, a retarding, and an accelerating admixture to original concretes had little or no effect on the properties of new concretes produced from recycled aggregates obtained by the crushing of original concretes. When jour percent of water-free calcium chloride, corresponding to 2.56 percent of soluble chloride ion by the weight of cement, was added to an original concrete to simulate the effects of accumulated deicing salts, the chloride content of a corresponding recycled concrete exceeded current ACI 201.2R-77 limits for chloride ion in concrete prior to service exposure. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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