Abstract

This paper focuses on the behavior of structural adhesives used in tank lining applications. The experimental program addresses the fundamental material properties and bond characteristics of adhesives when subjected to normal and severe environmental conditions. A total of 132 adhesive and CPVC tension coupons were examined under severe environmental exposure to determine the influence of these conditions on the tensile strength. Double-lap shear tests were conducted to evaluate the shear strength of the adhesive using 50 CPVC-to-steel specimens. The overall composite behavior of the proposed lining for steel tanks was investigated using three small-scale test specimens to simulate the conditions of a typical tank lining. The specimens were subjected to extreme temperature changes to examine the thermal gradient distribution and the composite interaction of the CPVC liner to the steel wall. Research findings provide better understanding of the performance of adhesives when subjected to severe environmental conditions and different sustained load levels.

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