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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: Strength Development and Temperature Rise in High-Volume Fly Ash and Slag Concretes in Large Experimental Monoliths
Author(s): M. Rivest, N. Bouzoubaa, and V. M. Malhotra
Publication: Special Publication
Appears on pages(s): 859-878
Keywords: compressive strength; de-icing salt scaling resistance; freezing and thawing; high-volume fly ash concrete; high-volume slag concrete; superplastizer; Young's modulus of elasticity
Abstract:Four rectangular concrete monoliths, each 2.5x4.Ox5.0-m high, were cast in Laval, Quebec in 1989. TWo control monoliths No. 1 and 2 were cast with concrete made with AST M Type I cement and with a modified version of ASTM Type 11 cement, respectively. Test monoliths No. 3 and 4 were cast using superplasticized high-volume fly ash concrete incorporating 56% fly ash as replacement for cement and high-volume slag concrete incorporating 60% granulated blast furnace slag as cement replacement. All monoliths were instrumented with thermocouples to monitor temperature rise. A large number of specimens were cast from concrete for each monolith for testing compressive, flexural, and splitting-tensile strengths, drying shrinkage, Young's modulus of elasticity, freezing and thawing and de-icing salt scaling resistance. The results show that the adequate strength development and low temperature rise characteristics of high-volume fly ash concrete, combined with the ability to place the concrete in one 5-m continuous lift, make this type of material very attractive for mass concrete applications. On the other hand, the significant high temperature rise and high later-age strength of high-volume slag concrete make this type of concrete more attractive for structural applications but not for mass concrete applications.
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