Bitumen-like material creep test device

Abstract

The invention discloses a bitumen-like material creep test device comprising a test table, a support, a pressure head component, a three-stage lever reinforcement structure and a temperature control mechanism. The support comprises a front pillar and a rear pillar; the three-stage lever reinforcement structure comprises a first lever, a second lever, a third lever, a first pillar, a second pillar and a tray; the tray is hinged to the first lever, the first lever and the third lever are hinged to the front pillar, and the second lever is hinged to the rear pillar; the first pillar is hinged to the first lever and the second lever, respectively; the upper and lower ends of the second pillar are hinged to the second lever and the third lever, respectively; the third lever is hinged to the pressure head component used for clamping a sample, the sample is disposed inside the temperature control mechanism. The device has the advantages that the applied force is amplified, the range of a lever creep system is increased, the running state of equipment is controlled through a micro-displacement compensation system, the structure of the device is simple, and the disassembly and maintenance of the device are easy.

Description

technical field [0001] The invention relates to the technical field of detection equipment, in particular to an asphalt material creep test device. Background technique [0002] Asphalt is a typical viscoelastic material, which leads to rutting deformation of asphalt concrete at high temperature, which affects the performance of asphalt pavement. In addition, under low temperature environment, the viscoelastic properties of asphalt will affect the relaxation properties of asphalt concrete, thereby reducing the cracking of asphalt pavement [1] . Therefore, studying the viscoelastic deformation characteristics of asphalt and asphalt concrete is an effective way to evaluate the high and low temperature performance of asphalt pavement. [0003] Creep test is an effective method to evaluate the deformation characteristics of viscoelastic materials. For a long time, in order to explore the creep performance of asphalt materials, many scholars have used different test equipment ...

AI Technical Summary

Problems solved by technology

At present, although electro-hydraulic servo testing machines and pneumatic testing machines have high precision, the complexity of the equipment is relatively high. Once the equipment stops, professionals need to repair it. The daily maintenance cost of the equipment is high, and it is difficult to popularize due to expensive equipment. application

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