| Autor: |
RYELL, JOHN |
| Zdroj: |
Journal of the American Concrete Institute; Apr1965, Vol. 62 Issue 4, p421-442, 22p |
| Abstrakt: |
Set retarded concrete placed in a bridge deck and finished with conventional equipment exhibited a severe surface deterioration in the form of flaking several days after paving. Similar concrete placed in the approach slab on a granular subgrade did not flake. Laboratory and field investigations showed that the flaking was due to the formation of a weak plane immediately below the surface of the concrete and was closely connected with the bleeding characteristics of the mix. The solution was found in reducing the bleeding rate of the concrete by a change in the type of set retarding admixture. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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