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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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: Transport Properties of Limestone-Containing Self- Consolidating Concrete
Author(s): Nader Ghafoori, Rebecca Spitek, and Meysam Najimi
Publication: Materials Journal
Appears on pages(s): 527-536
Keywords: compressive strength; limestone powder; self-consolidating concrete (SCC); transport properties
Abstract:This study examined the effects of limestone powder as a partial replacement for cementitious materials on transport properties of self-consolidating concrete (SCC). Several SCCs were prepared with a uniform powder content (cement + fly ash + limestone) and water-cementitious materials ratio (w/cm) of 475 kg/m3 (800 lb/yd3) and 0.45, respectively. Class F fly ash substituted 20% by weight of cement and up to 30% of total cementitious materials was replaced with limestone powder. A slump flow of 635 ± 25 mm (25 ± 1 in.), visual stability index of 1, and passing ability of 25 ± 12.5 mm (1 ± 0.5 in.) were used for all studied mixtures. The devised experimental program contained compressive strength, absorption, sorptivity, rapid chloride penetration (RCPT), rapid chloride migration (RCMT), water penetration depth, and chloride diffusion. Inclusion of limestone powder improved absorption, volume of permeable voids, capillary absorption, water penetration depth, and RCPT. Compressive strength and RCMT improved marginally, whereas a slight negative effect was observed for chloride diffusion.
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