Open AccessRESEARCH INTO THE RELIABILITY OF THE OVERLAP JOINT OF BITUMINOUS HEAT WELDED ROOFING MATERIALS / PRILYDOMŲJŲ STOGO MEDŽIAGŲ LAKŠTŲ SANDŪROS PATIKIMUMO TYRIMAS
Author(s) -
Darius Balčiūnas
Publication year - 2012
Publication title -
mokslas - lietuvos ateitis
Language(s) - English
Resource type - Journals
eISSN - 2029-2341
pISSN - 2029-2252
DOI - 10.3846/mla.2012.46
Subject(s) - welding , geotechnical engineering , joint (building) , materials science , structural engineering , metallurgy , composite material , forensic engineering , engineering
The conducted analysis has revealed that the most common reason of leaks in bituminous roofs is caused by a lack of adhesion between two nearby sheets of roof cover. Regarding the above mentioned problems, reliability, testing methods and data analysis methods of the overlap joint is observed more closely. The research conducted by different scientists worldwide has showed difficulties in evaluating the obtained data due to a lack of information on how these samples were produced. Therefore, it is proposed to evaluate the influence of welding time analyzing the mechanical properties of the joints of bituminous heat welded roofing materials. The influence of welding time, when the samples are produced, and mechanical properties of overlap joints are practically proved according to LST standards. The test results have showed that welding time does not have a significant influence on the shear resistance of overlap joints but is important regarding its limited deformation