Abstract: This paper analyzes the force acting on containment dikes used in firefighting spill control and establishes a calculation model for dike setup parameters. It proposes that the height of fluid that a polyurethane dike can block during use is directly proportional to its thickness. When flame-retardant polyurethane is combined with cement, the horizontal tensile force it can withstand is proportional to the square of its thickness. Using modified flame-retardant polyurethane as the containment material, the parameters of the calculation model are determined through experiments, and the error of the model is assessed.

Key words: flame-retardant polyurethane, fire protection, dike, strength, mechanical properties