Interlamination shear-resisting track test mould of large longitudinal-slope asphalt pavement

A technology for asphalt pavement and long longitudinal slope, which is applied in the direction of applying stable shear force to test the strength of materials, measuring devices, instruments, etc., and can solve the problems that the shear performance and testing of long longitudinal slope pavement layer cannot be realized. To achieve the effect of easy operation, accurate results and accurate test results

Inactive Publication Date: 2013-05-08
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing rutting test mold can only measure the dynamic stability and vertical displacement of the rutting specimen, and the formed rutti...

Method used

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  • Interlamination shear-resisting track test mould of large longitudinal-slope asphalt pavement
  • Interlamination shear-resisting track test mould of large longitudinal-slope asphalt pavement
  • Interlamination shear-resisting track test mould of large longitudinal-slope asphalt pavement

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Embodiment Construction

[0032] like Figure 1 to Figure 3 As shown, the present invention includes a slope pad 13, a lower trial mold 1, a middle trial mold 2, an upper trial mold 3, and a dial indicator 15 installed on the side wall of the lower trial mold 1 from bottom to top. The upper part of the spacer 13 is provided with a protrusion 13-1, and the bottom of the lower test mold 1 is provided with a groove 5 matched with the protrusion 13-1, and the number of the dial indicators 15 is two, two The dial indicator 15 is arranged symmetrically, and the dial indicator 15 is installed on the side wall of the lower trial mold 1 by the dial indicator mounting bracket 14, and the dial indicator mounting bracket 14 is fixed on the side wall of the lower trial mold 1 Above, the dial indicator 15 is installed on the dial indicator mounting bracket 14, the lower connecting holes 9 are opened around the upper part of the lower test mold 1, and the middle test mold 2 is composed of two oppositely arranged U-sh...

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Abstract

The invention discloses an interlamination shear-resisting track test mould of a large longitudinal-slope asphalt pavement. The interlamination shear-resisting track test mould comprises a slope padding block, a lower test mould, a middle test mould, an upper test mould, and dial indicators all of which are arranged in sequence from bottom to top, wherein the dial indicators are arranged on the lateral wall of the lower test mould, a projection is arranged at the upper part of the slope padding block, and a groove which is matched with the projection is arranged at the bottom of the lower test mould. The number of the dial indicators is two, and the two dial indicators are symmetrically arranged. The dial indicators are installed on the lateral wall of the lower test mould via a dial indicator installation support. The middle test mould comprises two U-shaped frames which are oppositely arranged; and middle mould handles are fixed on the lateral walls of the U-shaped frames. The upper test mould, the middle mould and the lower mould are fixed together via fixing bolts. The interlamination shear-resisting track test mould of the large longitudinal-slope asphalt pavement disclosed by the invention has the advantages of simple structure, reasonable design, low investment cost and convenience for installation and arrangement, can be used for evaluating the interlamination shear-resisting performance and the high-temperature track-resisting capability of the large longitudinal-slope asphalt pavement, and has the benefits of easiness and convenience for use and operation, accuracy test results and wide use range.

Description

technical field [0001] The invention belongs to the technical field of interlayer shear performance testing of pavement, and in particular relates to an interlayer shear resistance of long longitudinal slope asphalt pavement which can be used to evaluate the high temperature rutting resistance capability of asphalt mixture of long longitudinal slope and the anti-shear performance of pavement interlayer Rut tryout. Background technique [0002] my country's asphalt pavement design specifications and test procedures do not mention the indicators and methods used to evaluate the interlayer shear performance of pavement, so it cannot be concluded that the designed pavement structure meets the requirements for interlayer shear resistance of this grade of pavement structure. According to calculations, when the asphalt pavement layer changes from a continuous state to a sliding state, the shear force of the asphalt layer is greatly affected, and it is likely to be the source of ear...

Claims

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Application Information

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IPC IPC(8): G01N3/24G01N3/00
Inventor 郝培文王宏张航马永锋黄凌辉朴健
Owner CHANGAN UNIV
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