Low Compaction Energy Concrete for Improved Slipform Casting of Concrete Pavements

dc.contributor.author Wang, Kejin
dc.contributor.author Voigt, Thomas
dc.contributor.author Wang, Kejin
dc.contributor.author Shah, Surendra P.
dc.contributor.department Civil, Construction and Environmental Engineering
dc.date.accessioned 2022-02-07T20:20:57Z
dc.date.available 2022-02-07T20:20:57Z
dc.date.issued 2007-05-01
dc.description.abstract The current practice in concrete pavement construction is to use low-slump concrete, which is processed by a slipform paving machine. Extensive vibration, introduced by equally spaced internal vibrators, is required for the concrete to reach proper consolidation. It has frequently been reported that malfunctioning internal vibrators cause over-consolidation of the concrete pavement and lead to premature cracking and durability problems. The research presented in this paper is focused on optimizing the consolidation properties and shape stability of fresh concrete mixtures so that the internal vibration may he eliminated during the slipform paving process. The experimental results have shown that it is possible to design a concrete mixture that can be consolidated without internal or external vibration and at the same time can maintain its slab shape at the end of a slipform paving process. This was achieved by selectively manipulating flowability, consolidation properties, and green strength of fresh concrete through the use of chemical admixtures or the addition of small amounts of fine materials.
dc.description.comments This article is published as Pekmezci, Bekir Yilmaz, Thomas Voigt, Kejin Wang, and Surendra P. Shah. "Low Compaction Energy Concrete for Improved Slipform Casting of Concrete Pavements." Materials Journal 104, no. 3 (2007): 251-258. Copyright 2007 American Concrete Institute. Posted with permission.
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/jrl8m80r
dc.language.iso en_US
dc.publisher American Concrete Institute
dc.source.uri https://www.concrete.org/publications/internationalconcreteabstractsportal/m/details/id/18670 *
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 pavement
dc.subject.keywords slipform
dc.subject.keywords slump
dc.title Low Compaction Energy Concrete for Improved Slipform Casting of Concrete Pavements
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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