Compression deformation measuring device and measuring method for asphalt mixture compression test

Abstract

The invention relates to a compression deformation measuring device and a measuring method for an asphalt mixture compression test, relates to the field of asphalt mixture performance detection equipment, and aims to solve the problem that when a cylindrical asphalt mixture test piece is subjected to pressure test, a hydraulic cylinder continuously applies pressure to the cylindrical asphalt mixture test piece, a box door is damaged due to the fact that a cylindrical asphalt mixture test piece is splashed due to the fact that the cylindrical asphalt mixture test piece is prone to fracture when the strength of the cylindrical asphalt mixture test piece is not qualified in the prior art can be solved, and the device comprises a main machine box and a constant-temperature box, the constant-temperature box is installed on the main machine box, and a box door is installed at a box opening of the constant-temperature box, a protection assembly is arranged at the box opening, the protection assembly blocks the fractured cylindrical asphalt mixture test piece so as to protect the box door, and the protection assembly is further detachably connected with a connecting assembly connected with the box door. The device has the effect that the situation that the box door is damaged after the cylindrical asphalt mixture test piece is broken is relieved.

Description

technical field [0001] The present application relates to the field of performance testing equipment for asphalt mixture, in particular to a compression deformation measurement device and measurement method for asphalt mixture compression test. Background technique [0002] Most of the asphalt pavement built in my country adopts semi-rigid base, which is more rigid than the surface layer. Rutting is one of the main damage types of asphalt pavement. Asphalt mixture needs to have good anti-rutting ability to meet the influence of vehicle load on the shear stress of pavement structure. [0003] The relevant patent with the existing authorization announcement number of CN211347723U provides a kind of compression deformation measuring device for uniaxial compression test of asphalt mixture, including the main box, and the top of the main box is installed with a constant temperature environment incubator for the test piece. The outside of the incubator is equipped with a door. The...

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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that when the cylindrical asphalt mixture specimen is tested for pressure, the hydraulic cylinder continues to exert pressure on the cylindrical asphalt mixture specimen. Once the strength of the cylindrical asphalt mixture specimen fails to pass , it is easy to break the cylindrical asphalt mixture specimen itself, which will cause the cylindrical asphalt mixture specimen to splash and cause damage to the box door, so it needs to be improved

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