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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: Mechanical Properties and Durability of Concrete Made With Portland Limestone Cement
Author(s): E. F. Irassar, V. 1. Bonavetti, G. Menhdez,
H. Donza, and 0. Cabrera
Publication: Special Publication
Appears on pages(s): 431-450
Keywords: blast-furnace slag; chloride diffusion; curing; dilution;
hydration degree; limestone addition; limestone filler cement;
modulus of elasticity; strength; sulfate resistance; water absorption
Abstract:European countries have a great deal of experience in the use of Portland Limestone Cements (PLC). In Latin American, most of the cement plants use limestone as a raw material and an increase in cement production is expected in the next few years. The manufacture of this cement would represent a rapid increase of production without environmental consequences. This paper synthesizes data from a research program carried out over two years to determine the effects of limestone filler on concrete and mortar behavior. At early age, the influence of limestone filler on workability, bleeding, initial curing and mechanical behavior (modulus of elasticity, compressive and tensile strength) was studied. Sulfate resistance and chloride penetration, the most important durability problems related with PLC, were also studied. The addition of slag was also investigated to improve the long-term strength and the durability of PLC. Results show that cements containing around 10% of limestone filler provide similar or better mechanical behavior than portland cement concrete, without compromising their durability properties where low chloride diffusion and high sulfate resistance is required, In this case, the environmental impact of cement manufacture decreases because the energy consumption and the CO2 emission are reduced per ton of cement and the combination with other supplementary cementing materials (slag, fly ash or natural pozzolan) can improve these aspects.
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