Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 78: Issue 1
Investigations into the role of activated carbon in a moisture-blocking cement formulation
Author:
B. Chowdhury Matech Associates 407 WLE Lake Ariel PA 18436 USA E-mail

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Pages:
215–226
Online Publication Date:
03 Jan 2005
Publication Date:
01 Oct 2004
Article Category:
Research Article
DOI:
https://doi.org/10.1023/b:jtan.0000042169.37321.24
Keywords:
X-ray diffraction; activated carbon; carbon-vinyl reaction; cement microstructure; moisture blocking; moisture in cement; polarizability
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Abstract  

Physical deterioration is a natural consequence of moisture attack in finished concrete. Moisture is retained in open voids in prepared cement during mixing and hydration stages. Further atmospheric moisture uptake occurs following dehydration under use conditions in polymer-containing cement formulations, since polymers act as conduits for moisture ingress. The initial attribute of added strength from the polymer in improved cement formulations is thus nullified. Customary solution to the moisture problem has centered around improving moisture resistance by significant reduction of inherent macro defects. A more complete method of moisture blocking by the reaction of activated carbon with a vinyl polymer included in the cement formulation is described here. The moisture blocking action is due to the mitigation of open voids by the occlusion of a carbon-vinyl additive, essentially resulting in filled voids or no voids in the prepared cement, producing a durable finished concrete product. Supporting evidence for the above by thermal, polarization, X-ray and SEM are reported in this paper.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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