Freezing and Thawing Durability of High Flowing Concrete Using Different Cementitious Materials

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Title: Freezing and Thawing Durability of High Flowing Concrete Using Different Cementitious Materials

Author(s): M. Soeda, T. Yamato, Y. Sato and Y. Emoto

Publication: Special Publication

Volume: 170

Issue:

Appears on pages(s): 933-948

Keywords: Air-entrainment; blast furnace slag; compressive strength; concretes; fly ash; freeze thaw durability; high early strength cements; silica fume; superplasticizers.

Date: 7/1/1997

Abstract:
This report presents the results of laboratory studies conducted to determine freezing and thawing resistance of high flowing concrete. High flowing concretes were made using a combination of different cementitious materials (Fly ash, blast-furnace slag and silica fume). The water-to-cementitious materials ratio was 0.32, and the sand coarse aggregate ratio was 0.51. All mixtures used a superplasticizer and were non-air-entrained. Test cylinders were made for testing in compression at 1 , 7 and 28 days, and test prisms were cast for determining resistance to freezing and thawing cycles in accordance with ASTM C 666, Procedure A. The curing methods were water curing and steam curing. The air void parameters of the hardened concrete were determined on sawn sections. The pore size distributions of the hardened concrete was measured by mercury porosimeter. The test results have indicated that the non-air-entrained , high-flowing concrete with steam curing showed low durability factors. The high flowing concrete with the water curing performed satisfactorily when subjected to up to 900 cycles of freezing and thawing.