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Durability Evaluation of Reinforced Glass-Flake Polyester Material Used in Rehabilitation of Sewer Lines in Buildings-Dataset
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design. KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Sustainable Buildings.ORCID iD: 0000-0002-6090-0612
2019 (English)Data set, Primary data
Abstract [en]

This dataset includes water absorption measurement data to support research findings in the article: ”Durability Evaluation of Reinforced Glass-Flake Polyester Material Used in Rehabilitation of Sewer Lines in Buildings" with the following abstract: The aging of sewer infrastructure in buildings is an ongoing problem, and total replacement of deteriorated pipelines is a difficult and costly process. Currently, different materials and methods are in use in alternative rehabilitations technologies. This work was conducted to study one of these materials, which is a glass-flake reinforced polyester polymeric system, during artificial aging to provide a better understanding of the material’s performance under operating conditions when it is regularly exposed to degrading factors such as high temperature and water. Aging of the material was studied in the lab by monitoring changes in the material when it was exposed to different temperatures (20°C, 40°C, 60°C and 80°C), both when immersed in water and under dry conditions. Changes in the material during aging were monitored by conducting different tests, including thermal and mechanical analysis, water absorption and microscopy. The results showed that a combination of aging in water and high temperature had a greater effect on the material compared to aging at high temperature in dry conditions. Mechanical testing showed that the flexural modulus and strength decreased by 50-58% and 42-58% respectively for material immersed in water for two months when compared to the material exposed to similar temperatures in air aging. Moreover, the differences between the flexural modulus and strength of the materials exposed to wet and dry conditions were higher under longer exposure times and exposure to higher temperatures. It was observed that the reduction in the flexural modulus and strength after six months of water aging was more significant at 80°C, where the decreases were 77% and 72%, respectively, in comparison with the material subjected to air aging. Thermal analysis revealed more changes in the material at 80°C than at other exposure temperatures, while water absorption results showed a larger and more rapid water uptake at higher temperatures.

Although the measured properties were affected significantly when immersed in water at high temperatures, the material showed acceptable properties at lower exposure temperatures, such as 40°C, during a few months of artificial aging. Considering that the liner material bonded to the pipe is not immersed in water during operation but rather comes into contact with water only from one side, that the average temperature inside sewer pipes in buildings in Sweden is known to be 40°C and that the installed material, particularly in gravity sewers, will not be exposed to water constantly, it can be concluded that the material should work as expected during its service life. 

 

Place, publisher, year
2019.
Version
1.0
Keywords [en]
Rehabilitation, Relining Materials, Aging, Waste-Water Sewer, Polyester
National Category
Water Engineering Corrosion Engineering Other Environmental Engineering Composite Science and Engineering Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-249998OAI: oai:DiVA.org:kth-249998DiVA, id: diva2:1306924
Note

QC 20190425

Available from: 2019-04-25 Created: 2019-04-25 Last updated: 2019-10-10Bibliographically approved

Open Access in DiVA

dataset(93 kB)97 downloads
File information
File name DATASET03.xlsxFile size 93 kBChecksum SHA-512
ec7079769a13f75441307474df5c64a03f2c8e0483a8335c96f82c4b95e7393764e7e9666948fbf86a17dba486969aa56e8ed1ed520b114b9d4f767673faabc6
Type datasetMimetype application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
dataset(2082 kB)3 downloads
File information
File name DATASET04.zipFile size 2082 kBChecksum SHA-512
cb43188361af030ad2a69d1ccbe8f5f78dd611a5fd3811476cdc111c81daad0cddb132e6f260b18e54e0bd0551e81d5b269089a81e62204cf929836272e86474
Type datasetMimetype application/zip

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Kharazmi, Parastou
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CiteExportLink to record
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