Thermal Conductivity Measurements of Weathered Limestone
Document Type
Conference Proceeding
Publication Date
1-1-2018
Abstract
Thermal properties of geological materials are required for analysis and design of energy geostructures. In Florida the weathered limestone bedrock, which has highly variable engineering properties, can be found near the ground surface and its thermal properties will need to be incorporated into the design of such systems. Thermal conductivity values for split tension sized specimens were determined using a specially designed thermal apparatus. The apparatus is capable of determining four thermal conductivity values for each specimen, which provided a measure of variability of the measurements. Thermal conductivities ranged between 2.65 and 3.75 W/m-K with specimen measurement standard deviations and coefficient of variations as high as 0.415 W/m-K and 11.1%, respectively. The variability of the results can be attributed to both dissolution, which would decrease thermal conductivity, and dolotomitization, which would increase thermal conductivity. Thermal conductivity values are in the lower range of values reported in the literature.
Publication Title
Geotechnical Special Publication
Volume
2018-March
Issue
GSP 295
First Page
389
Last Page
398
Digital Object Identifier (DOI)
10.1061/9780784481585.038
ISSN
08950563
Citation Information
Polito, Nuszkowski, J. P., & Hudyma, N. W. (n.d.). Thermal Conductivity Measurements of Weathered Limestone. In IFCEE 2018 (pp. 389–398). https://doi.org/10.1061/9780784481585.038