Effects of Strength, Permeability, and Air Void Parameters on Freezing-Thawing Resistance of Concrete with and without Air Entrainment

dc.contributor.author Wang, Kejin
dc.contributor.author Wang, Kejin
dc.contributor.department Civil, Construction and Environmental Engineering
dc.date.accessioned 2022-02-02T23:07:36Z
dc.date.available 2022-02-02T23:07:36Z
dc.date.issued 2009
dc.description.abstract The present research is aimed at investigating effects of concrete properties, particularly concrete rapid chloride permeability, strength, and air void parameters, on freezing-thawing (FT) resistance. In this study, concrete mixtures are made with different types of cement (Types I with 15 % class C fly ash and Type IP cements), different water-to-binder ratios (w/b=0.25, 0.35, 0.45, and 0.55), and with or without air entraining agent. The 28-day compressive strength, rapid chloride permeability, and FT durability of the concrete are determined according to ASTM C873, C1202, and C666A, respectively. The air void parameters of the concrete are measured with air void analyzer, Rapid Air, and porosity (ASTM C642) tests. The results indicate that although concrete made with a low w/b (≤0.35) has low rapid chloride permeability (≤1320 C), it generally still requires proper air entrainment for a desirable FT resistance (with a durability factor of ≥85 %), except for the concrete having very low rapid chloride permeability (520 C) and very high 28-day compressive strength (88 MPa or 12 760 psi). For the non-air-entrained concrete studied, there are clear relationships between FT durability and porosity, w/b, and permeability. However, such relationships do not exist for air-entrained concrete. The FT resistance of air-entrained concrete is largely dependent on the concrete air void characteristics.
dc.description.comments This article is published as Lomboy, Gilson, and Kejin Wang. "Effects of strength, permeability, and air void parameters on freezing-thawing resistance of concrete with and without air entrainment." Journal of ASTM International 6, no. 10 (2009). DOI: 10.1520/JAI102454. Copyright 2009 ASTM International. Posted with permission.
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/EwpaOa0v
dc.language.iso en_US
dc.publisher ASTM International
dc.source.uri https://doi.org/10.1520/JAI102454 *
dc.subject.disciplines DegreeDisciplines::Engineering::Civil and Environmental Engineering::Civil Engineering
dc.subject.disciplines DegreeDisciplines::Engineering::Engineering Science and Materials::Mechanics of Materials
dc.subject.keywords freeze-thaw durability
dc.subject.keywords permeability
dc.subject.keywords strength
dc.subject.keywords air void
dc.subject.keywords porosity
dc.title Effects of Strength, Permeability, and Air Void Parameters on Freezing-Thawing Resistance of Concrete with and without Air Entrainment
dc.type Article
dspace.entity.type Publication
relation.isAuthorOfPublication f9071b81-012f-4b6d-a040-9083bc33535c
relation.isOrgUnitOfPublication 933e9c94-323c-4da9-9e8e-861692825f91
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