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Conventional Portland Cement and Carbonated Calcium Silicate-Based Cement Systems Performance During Freezing and Thawing in Presence of Calcium Chloride Deicing Salts
Journal article   Open access   Peer reviewed

Conventional Portland Cement and Carbonated Calcium Silicate-Based Cement Systems Performance During Freezing and Thawing in Presence of Calcium Chloride Deicing Salts

Chiara Villani, Yaghoob Farnam, Taylor Washington, Jitendra Jain and W. Jason Weiss
Transportation research record, v 2508(2508), pp 48-54
01 Jan 2015
DOI: https://doi.org/10.3141/2508-06
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
https://doi.org/10.1159/000530889View
Published, Version of Record (VoR)Maybe Open Access (Publisher Bronze),  Open

Abstract

Engineering Engineering, Civil Science & Technology Technology Transportation Transportation Science & Technology
The behavior of two cementitious materials during thermal changes associated with freezing and thawing in presence of calcium chloride deicing salts was examined. The two systems consisted of a conventional portland cement-based material and an alternative economically friendly cement that formed a solid by carbonating a calcium silicate based cement. Low-temperature differential scanning calorimetry was used to quantify the phase changes associated with ice formation, eutectic solution transformation, and calcium oxychloride formation. Longitudinal guarded comparative calorimetry was used to detect the damage that developed as a result of the expansive pressures created by these phases when they form. In both systems exposed to low salt concentration, the damage was primarily caused by hydraulic and osmotic pressure. This type of damage was moderate at low degrees of saturation (e.g., <90%); however, as the degree of saturation increased, so did the damage. In conventional cementitious systems at higher salt concentrations, the damage that developed was mainly caused by the formation of calcium oxychlorides. However, in the cementitious materials made by carbonating calcium silicate based cement calcium, hydroxide was not present. Therefore, at higher salt concentrations, calcium oxychloride did not form, and as a result, no damage developed.

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16 citations in Web of Science
20 citations in Scopus

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#12 Responsible Consumption & Production

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Collaboration types
Industry collaboration
Domestic collaboration
Web of Science research areas
Engineering, Civil
Transportation
Transportation Science & Technology
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