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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-Cementitious Material-Water Relationship for Proportioning of Fly Ash-Based Concrete
Author(s): Subrato Chowdhury and Prabir C. Basu
Publication: Materials Journal
Appears on pages(s): 340-348
Keywords: fly ash-based concrete; hydration; strength ratio; water-cementitious material ratio
Abstract:Under identical conditions of mixing, curing, compaction, and testing, the relationship between the compressive strength of concrete (fc) and water-cementitious material ratio (w/cm) is critical to proportion a workable concrete mixture for specified target properties. The relationship between strength and w/cm is developed in the generic format for fly ash-based concrete involving nondimensional parameters; strength ratio (fc/fm), and w/cm. The fc/fm is the ratio of fc and compressive strength of the standard mortar (fm). The standard mortar is proportioned with the cementitious material of the same composition and fine aggregates that will be used in the concrete mixture. The fm is tested following the standard procedure to test the compressive strength of cement. The hydration characteristics of cementitious materials are incorporated in the relation. The test results confirm the satisfactory performance of a new relation in proportioning a fly-ash-based concrete mixture.
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