Influence of rock salt impurities on limestone aggregate durability

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Show simple item record Varner, Jonathan 2013-08-16T15:37:06Z 2013-08-16T15:37:06Z 2013-08-16
dc.description.abstract Some limestone coarse aggregate in concrete pavement can break down under repeated freeze-thaw cycles. Application of rock salt may increase the severity of exposure conditions because of trace compounds, such as calcium sulfate, in rock salt. Subsequently, limestone aggregate in concrete was subjected to freeze-thaw cycling in two methods: salt-treating the aggregate before batching concrete, and half-immersing concrete specimens in rock salt solution during freeze-thaw cycling. Concrete and saw-cut limestone specimens were also subjected to wet-dry cycles in varying salt solutions to examine the influence of trace compounds in rock salt. Freeze-thaw test results indicate that the test methods used were not severe enough to determine if a limestone aggregate was durable or not. The wet-dry testing was also not severe enough to determine the effects of trace compounds in salt solution. en_US
dc.description.sponsorship Kansas Department of Transportation en_US
dc.language.iso en_US en_US
dc.publisher Kansas State University en
dc.subject Deicing salt impurities en_US
dc.subject Limestone en_US
dc.subject Aggregate frost en_US
dc.subject Durability en_US
dc.title Influence of rock salt impurities on limestone aggregate durability en_US
dc.type Thesis en_US Master of Science en_US
dc.description.level Masters en_US
dc.description.department Department of Civil Engineering en_US
dc.description.advisor Kyle Riding en_US
dc.subject.umi Engineering (0537) en_US 2013 en_US August en_US

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