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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: Dewndence of Frost Resistance on the Pore Structure of Mortar Containing Silica Fume
Author(s): Huang Cheng-yi and R. F. Feldman
Publication: Journal Proceedings
Appears on pages(s): 740-743
Keywords: freeze-thaw durability; measuring instruments; microstructure;mortars (material); porosity; silica; water-cement ratio.
Abstract:Mortars prepared at water to cement and silica fume [w/(c + sfl] (0, 10, and 30 percent by weight) ratios of 0.45 and 0.60 were assessed for resistance to freeze-thaw cycles. Pore size distribution was measured by mercury intrusion and reintrusion experiments were per-formed after distillation of mercury. Results indicate that addition of silica fume changes the pore structure, and that pore volume in the pore size ranges of 20,000 to 2000 and 2000 to 350 nm increases, whereas accessibility to the pores decreases. Frost resistance of mortars containing no entrained air and prepared at a w/(c + sf) ratio of 0.60 was improved greatly with the addition of silica fume.
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