Low-temperature air channel testing of thermally bonded PVC geomembrane seams

Autor:	Timothy D. Stark, Hangseok Choi, R. W. Thomas
Rok vydání:	2004
Předmět:	Arrhenius equation Air channel Materials science Geotechnical Engineering and Engineering Geology symbols.namesake Polyvinyl chloride chemistry.chemical_compound Geomembrane chemistry Thermal symbols Geotechnical engineering Geosynthetics Burst pressure Civil and Structural Engineering
Zdroj:	Geosynthetics International. 11:481-490
ISSN:	1751-7613 1072-6349
DOI:	10.1680/gein.2004.11.6.481
Popis:	The objective of this paper is to present a procedure for high sheet temperature air channel testing of dual-track thermal seams for 0.75 mm thick polyvinyl chloride (PVC) geomembranes. This objective is accomplished by developing relationships between seam peel strength and seam burst pressure for sheet temperatures ranging from 46.7°C to 62.8°C during field air channel testing. This paper extends the original relationships presented by Thomas et al. and Stark et al., which extend only to 46.7°C, because a sheet temperature greater than 46.7°C is frequently encountered during hot summer months. The original relationship is extended to 62.8°C using the Arrhenius model, and a polynomial equation is presented that can be used to convert the sheet temperature during field air channel testing to the air channel pressure required to ensure that the specified seam peel strength of 2.6 N/mm is met or exceeded. Thus the proposed relationship and equation allow the seam peel strength to be verified by fi...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::427fb81240a12d5be3798a0cf77e66bc https://doi.org/10.1680/gein.2004.11.6.481 Zobrazit plný text záznamu