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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: Properties of Mortar Mixtures Containing High Amounts of Various Supplementary Cementitious Materials
Author(s): C. Talbot
Publication: Special Publication
Appears on pages(s): 125-152
Keywords: cement types; compressive strength; chlorides; fly ash; hydration; microstructure; mortars (material); permeability; porosity; slags; Materials Research
Abstract:As part of a series of experiments designed to develop binary and ternary blended cements for use in structures exposed to freezing and thawing cycles in the presence of deicer salts, 39 mortar mixtures were made. Five different portland cements (two Canadian Type 10 cements, two ASTM Type I cements, and one Canadian Type 30 cement), seven fly ashes (three Class F fly ash, one Class CF fly ash, and three Class C fly ash), and two blast furnace slags were used as cementitious materials. The water-cementitious material ratio of all mixtures was fixed at 0.40; the amount of supplementary cementitious material (as a percentage of the total mass of binder) was zero percent for the five portland cement reference mixtures, 20 percent for nine mixtures, and 40 percent for the other 25 mixtures. The compressive strength of all mortars was measured after seven, 28, and 90 days of curing in water. The pore size distribution (with mercury intrusion porosimetry) and the chloride ion permeability of all mortars were determined after 28 days of curing. The results of the tests carried out to analyze the portland cements, the fly ashes, and the slags are also given in this paper. It was found that certain mixtures containing 40 percent of supplementary cementitious material had an excellent 28-day strength, a very low chloride ion permeability, and a very small average capillary pore size.
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