Journal article
The Influence of Calcium Chloride Salt Solution on the Transport Properties of Cementitious Materials
Advances in civil engineering, v 2015, pp 1-13
01 Jan 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The chemical interaction between calciumchloride (CaCl2) and cementitious binder may alter the transport properties of concrete which are important in predicting the service life of infrastructure elements. This paper presents a series of fluid and gas transport measurements made on cementitious mortars before and after exposure to various solutions with concentrations ranging from 0% to 29.8% CaCl2 by mass. Fluid absorption, oxygen diffusivity, and oxygen permeability were measured on mortar samples prepared using Type I and Type V cements. Three primary factors influence the transport properties of mortar exposed to CaCl2 : (1) changes in the degree of saturation, (2) calcium hydroxide leaching, and (3) formation of chemical reaction products (i.e., Friedel's salt, Kuzel's salt, and calcium oxychloride). It is shown that an increase in the degree of saturation decreases oxygen permeability. At lower concentrations (<similar to 12% CaCl2 at room temperature), the addition of CaCl2 can increase calcium hydroxide leaching, thereby increasing mortar porosity (this is offset by the formation of Friedel's salt and Kuzel's salt that can block the pores). At higher concentrations (>similar to 12%), the formation of chemical reaction products (mainly calcium oxychloride) is a dominant factor decreasing the fluid and gas transport in concrete.
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Details
- Title
- The Influence of Calcium Chloride Salt Solution on the Transport Properties of Cementitious Materials
- Creators
- Yaghoob Farnam - Purdue University West LafayetteTaylor Washington - Purdue University West LafayetteJason Weiss - Purdue University West Lafayette
- Publication Details
- Advances in civil engineering, v 2015, pp 1-13
- Publisher
- Hindawi Publishing Group
- Number of pages
- 13
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000355602900001
- Scopus ID
- 2-s2.0-84931264760
- Other Identifier
- 991020836608304721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Construction & Building Technology
- Engineering, Civil