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The aim of the study was to compare the strength of assembly joints of sleeve elements made of different
structural, polymeric materials. Experimental tests were carried out to determine the mechanical properties
of adhesive and welded joints. Adhesive joints were made of polyvinyl chloride pipes with the use of
three types of adhesives: Epidian 53/PAC/100:80, Epidian 53/TFF/100:22, Vodaro 15010-VO. The welded
joints were made of polypropylene pipes. All of the joints have been made with the use of a pipe
fitting allowing for correct joints. Then the completed joints were subjected to destructive strength tests.
The obtained results made it possible to carry out statistical analysis, which aimed at determining significant
differences between the various methods of assembly. The tests carried out proved that the adhesive
joints made with the Vodaro 15010-VO one-component adhesive were characterized by the highest
strength - 2.30 MPa. The lowest strength was obtained in the case of adhesive joints made with Epidian
53/TFF/100:22 - 0.45 MPa epoxy ad-hesive composition. Statistical analysis showed that the strength
obtained in case of adhesive joints made with epoxy compositions differs significantly from the strength
of adhesive joints made with Vodaro adhe-sive. No significant differences at the assumed level of significance
α=0.05 were also observed in the case of the strength of PP-R adhesive joints made with Vodaro
adhesive and the strength of PVC-U welded joints.
