Research on influencing factors of rubber concrete performance based on grey correlation theory

Abstract

Based on the experiment and grey system theory, the influence on slump and compressive strength of rubber concrete are analyzed systematically under the rubber grain gradation mass, the content of rubber grain substitution and whether the rubber surface is pretreated. The influence rule of each factor on the slump and compressive strength is consistent. The influence order is as follows: The mass percentage of rubber particle grading is more than the amount of rubber particle replacing, which is more than whether the rubber surface is pretreated. The mass percentage of rubber particle grading and the amount of rubber particle replacing is more than 0.6 and whether the rubber surface is pretreated that is less than 0.6. In view of this situation, considering whether the assignment condition of rubber surface pretreated is reasonable, this problem needs further study. The results of this paper provide a theoretical reference for the main factors concerned in the mix design of rubber concrete.