Novel asphalt mixture rut test piece demolding equipment

Abstract

Novel asphalt mixture rut test piece demolding equipment is composed of a demolding machine, a lifting column, a lifting table, a demolding plate, a power switch, an ascending button, a stop button, a descending button, an anti-sticking coating, a rut test piece mold side plate, a heat insulation handle, a rut test piece mold side plate bottom plate and fixing bolts which are matched with one another. The rut test piece mold side plate and the rut test piece mold side plate bottom plate can be fixed through fixing bolts, so that an open container is formed, and an anti-sticking coating is arranged on the inner wall of the open container. According to the invention, the demolding process becomes more convenient, the hydraulic device is used for assisting demolding, the defect of demolding by beating with a rubber hammer is overcome, the demolding efficiency is obviously improved, disturbance to a test piece is avoided, and the influence of operation in the demolding process on various properties of the test piece is reduced.

Description

technical field [0001] The invention belongs to the technical field of indoor test instruments for evaluation of service performance of highway asphalt pavement, and relates to demoulding equipment for asphalt mixture rutting test pieces, in particular to a new type of demoulding equipment for asphalt mixture rutting test pieces. Background technique [0002] Asphalt mixture is a typical viscoelastic material, and its physical and mechanical properties are closely related to temperature and loading time. Due to the viscoelastic properties of materials and the diversity of factors affecting the high temperature performance of asphalt pavement, the rutting disease of asphalt pavement structure has become a worldwide problem, and the research on permanent deformation (rutting, etc.) of asphalt pavement has always been the concern of road researchers Hot Issues. [0003] The asphalt mixture rutting test is used to measure the high-temperature anti-rutting ability of asphalt mix...

AI Technical Summary

Problems solved by technology

[0005] 1) During the molding process of the traditional rut sample mold, the side plates and the bottom plates of the four side plates of the mold are easy to bond with the asphalt mixture specimen. In order to remove the mold, a piece of ordinary paper ( or newspaper) so that the bottom plate and side plates of the mold are separated by paper, which will cause paper to be stuck on the demoulded asphalt mixture sample and it is difficult to remove completely, thus affecting the performance test results of the sample, and in the Time-consuming and labor-intensive operation affects work efficiency and quality;

[0006] 2) The four side plates and the bottom plate of the currently commonly used rutting specimen forming test mold are fixed by multiple hexagonal bolts. When using this rutting forming mold to prepare asphalt mixture specimens, it is necessary to adjust each hexagonal bolt. After use, the connection part of the mold will become loose. The process of demoulding is time-consuming and laborious, and it is easy to cause damage to the asphalt mixture specimen and affect the performance of the specimen.

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