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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Application of High Slag and Fly Ash, Low-Heat Cement to Antiwashout Underwater Concrete
Author(s): S. Kashima, M. Sakamoto et.
Publication: Special Publication
Appears on pages(s): 1601-1620
Keywords: adiabatic conditions; admixtures; blast furnace slag; cements; fly ash; low-heat cements; mass concrete; setting (hardening); slags; slump; superplasticizer; underwater structures; water-reducing agents; temperature; Materials Research
Abstract:The Akashi Kaikyo Bridge, with a center span of 1990 m, will be the world's longest suspension bridge when it is completed in 1998. The two main tower foundations are being constructed in water. A total volume of about 500,000 m3 of antiwashout underwater concrete has been placed, and about 180,000 m3 of ordinary reinforced concrete is currently being placed. Since this antiwashout underwater concrete had to be placed over a wide area and placed about 10,000 m3 per pour, it was necessary to choose a low-heat, high-flowability concrete. The cement used for this antiwashout underwater concrete was a three-component type containing about 80 percent granulated blast furnace slag and fly ash. Report describes the physical properties and workability of the antiwashout underwater concrete and the results of construction.
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