GB/T 13477.14-2019 specifies the test method for determining the adhesion of sealants used in building and civil engineering after continuous immersion in water and exposure to tensile-compression cycles. It covers key aspects such as test principles, apparatus, specimen preparation, processing procedures, and result reporting. By simulating the combined conditions of a humid environment and reciprocating displacement, the method determines the tensile-compression amplitude based on the displacement capacity corresponding to the sealant grade, thereby evaluating the material's adhesion and cohesion to provide performance references for practical applications. Relevant testing instruments include a constant-temperature water bath, a forced-air drying oven, and a tensile-compression testing machine, complemented by specialized positioning blocks, fixtures, and measuring tools with an accuracy of 0.5 mm to ensure test conditions and result accuracy.