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Annular test piece compaction forming device for tubular cracking test of semi-rigid base material

A technology for semi-rigid base layer and cracking test, which is applied in the field of annular specimen compaction forming device for semi-rigid base layer material tubular cracking test, can solve the problems of semi-rigid base layer cracking and other problems, and achieves the effect of simple and convenient control and good monitoring effect.

Pending Publication Date: 2020-12-29
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the semi-rigid base course has gradually revealed its serious congenital defect - cracking in the application of highway engineering for many years

Method used

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  • Annular test piece compaction forming device for tubular cracking test of semi-rigid base material
  • Annular test piece compaction forming device for tubular cracking test of semi-rigid base material
  • Annular test piece compaction forming device for tubular cracking test of semi-rigid base material

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal" etc. is based on the orientation or positional relationship shown in the drawings, and is only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific o...

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Abstract

The invention relates to the technical field of road engineering pavement material detection, and discloses an annular test piece compaction forming device for a tubular cracking test of a semi-rigidbase material. The device comprises a mold outer ring; the mold outer ring is connected with a ferrule outer ring through an outer ring male buckle and an outer ring female buckle; a mold inner ring is connected with a ferrule inner ring through an inner ring male buckle and an inner ring female buckle; and the ferrule outer ring and the ferrule inner ring are installed on a bottom plate through an outer limiting seat and an inner limiting seat. The overall structure is quite stable, a stable annular space can be formed, and the device is suitable for compaction forming work of the semi-rigidbase material. A motor, a worm, a worm wheel and a rotating shaft can provide power for a tray in a compaction process and control the tray to rotate and to be locked, so that a compaction hammer cancarry out compaction at any position, and control is easier and more convenient; and the device is novel in design and easy to operate and has the advantages of being simple in structure, accurate inmonitoring and capable of effectively carrying out compaction forming on the semi-rigid base material.

Description

technical field [0001] The invention relates to the technical field of road engineering pavement material detection, in particular to a ring-shaped test piece compaction forming device for semi-rigid base material tubular cracking test. Background technique [0002] Semi-rigid base has the characteristics of good stability, high compressive strength, strong frost resistance, self-contained structure, and low cost. It has become the most widely used base structure in China's highway engineering. It plays an important role in the entire pavement structure. play an important bearing role. [0003] However, the semi-rigid base layer has gradually shown its serious congenital defect - cracking in the application of highway engineering for many years. In the semi-rigid base asphalt pavement structure, since the semi-rigid base material is a hydraulic material, it will shrink during the process of dehydration and drying, and then produce shrinkage stress; at the same time, during ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
CPCG01N1/286
Inventor 祝珣李景山王晓智李宏伟杜方元李翔林刘元泓杨睿李兆章王欣董汉雄李鹏刘传军
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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