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Laboratory investigation of the use of volcanic ash in concrete : technical summary.
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2016-09-01
[PDF-382.53 KB]
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Abstract:Supplementary cementitious materials (SCMs) are commonly used in KDOT
concrete pavements and bridge decks to improve strength and permeability
characteristics. The supplementary cementitious materials allowed under
current KDOT specifications are all by-products of industrial processes.
Volcanic ash is a natural product that has been used as a mineral admixture
in concrete.
The purpose of this study was to evaluate Kansas sources of volcanic ash
for use in concrete as an SCM. This report will discuss all three stages
of the study: material testing of the volcanic ash, testing the cementitious
properties of Kansas volcanic ash, and evaluating the effects of volcanic ash
on the properties of concrete such as strength and permeability.
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