| Determination of performance of air-entrained
concrete incorporating pelletized blast-furnace slag, and air-entrained
and non air-entrained concretes incorporating high-range water-reducing
admixtures (HRWRA) (superplasticizers). Test prisms installed at Treat Island . . . . . . . . . 1978 |
Phase I(A) - 1978 Phase I(A) was primarily concerned with the long-term performance of concrete incorporating pelletized blast-furnace slag. The percentages of the cement replacement by slag investigated were 25, 45, and 65 percent at water-to-cementitious materials ratios of 0.40, 0.50, and 0.60. Notwithstanding the surface scaling, it can be concluded that up to 65 percent slag as a cement replacement in concrete mixtures with a water-to-cementitious ratio of 0.40 is an acceptable option. The above conclusions may have to be modified after 25 years of exposure. Phase I(B) - 1978 The Phase I(B) investigations included a series of test prisms to examine the effect of long-term performance of both non air-entrained and air-entrained concretes. |
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