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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: Cement Type Effect on Improvement of Clayey Soil Properties
Author(s): Murat Mollamahmutoglu and Eyubhan Avcı
Publication: Materials Journal
Appears on pages(s): 855-866
Keywords: calcium aluminate cement; clay; compressibility; strength; sulfate-resistant cement; swelling
Abstract:In this paper, some geotechnical properties of low-plasticity clay blended with calcium aluminate cement (CAC) at different contents were investigated and compared with those of sulfate-resistant cement (SRC)-blended low-plasticity clay. As the liquid limits of CAC and SRC-blended low-plasticity clay decreased, their plastic limits increased. Additionally, the liquid limit and the plastic limit of CAC-blended low-plasticity clay were found to be lower than those of SRC-blended low-plasticity clay. The optimum moisture content and maximum dry density of low-plasticity clay were increased by both CAC and SRC agents. Moreover, the optimum moisture content and maximum dry density values of CAC-blended low-plasticity clay were higher than those of SRC-blended low-plasticity clay. The shear strength of low-plasticity clay was also increased with the CAC and SRC additives. The internal friction angles of CAC-blended low-plasticity clay were higher than those of SRC-improved low-plasticity clay under both the wet-cured and air-dried conditions. The cohesion intercepts of CAC-improved low-plasticity clay under both the wet-cured and air-dried conditions were lower than those of SRC-improved low-plasticity clay. The compressibility and swell characteristics of low-plasticity clay were considerably reduced with both CAC and SRC admixtures. However, the swell and compressibility of CAC-blended low-plasticity clay were lower than those of SRC-blended low-plasticity clay. Generally, the CAC agent was more effective than the SRC agent in the improvement of aforementioned low-plasticity clay properties.
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