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Marshall compactor and Marshall testing method

A compactor and station technology, applied in the field of construction engineering, can solve the problems of easy failure, cumbersome inspection and operation process, etc., to achieve the effect of improving reliability, reducing occupied volume, and improving efficiency

Active Publication Date: 2021-01-08
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the combination of sprocket chain and long rod, the inspection and operation process is cumbersome during use, and it is prone to failure

Method used

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  • Marshall compactor and Marshall testing method
  • Marshall compactor and Marshall testing method
  • Marshall compactor and Marshall testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]Such asFigure 1-5As shown, this embodiment provides a Marshall compaction instrument, including a seat plate 24, two compaction components are provided on the seat plate 24, the compaction components include a striking piece, and the upper surface of the seat plate 24 is provided with two elastic components. The clamping cylinder is clamped with a test mold cylinder, and the test mold is contained in the test mold cylinder. The two clamping cylinders are respectively arranged at the first station and the second station directly below the two striking parts , The striking part can strike the test mould in the test mould cylinder; a rotary drive part is arranged between the two clamping cylinders, and the clamping cylinder is fixed with the output shaft of the rotary drive part by a telescopic rod 9 and the axis of the telescopic rod 9 is The axis of the shaft is vertical, and the axes of the two telescopic rods 9 coincide. The rotating drive member can drive the telescopic rod ...

Embodiment 2

[0053]In this embodiment, in order to solve the operational inconvenience caused by the existing sprocket, chain, and long rod combination, the compaction assembly has a different structure from the existing compaction assembly.

[0054]The compaction assembly includes a vertically arranged sliding cylinder 15 in which a cylinder block of a cylinder 19 is provided. The lower end surface of the cylinder block of the compacting cylinder is fixed with a supporting cylinder 20, the sliding cylinder 15, the supporting cylinder 20 and the cylinder The axis of the middle piston rod is arranged coaxially; the lower part of the support cylinder 20 is supported by a backing plate 22, which is located on the upper surface of the test mold in the test cylinder, between the sliding cylinder 15 and the upper end of the cylinder block of the compacting cylinder. There is a support spring 18, and an electromagnet 16 is provided in the sliding cylinder 15, and the electromagnet 16 can provide upward po...

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Abstract

The invention relates to a Marshall compactor and a Marshall testing method. The Marshall compactor comprises a base plate, wherein two compaction assemblies are arranged above the base plate, each compaction assembly comprises a striking piece, two elastic clamping cylinders are arranged on the upper surface of the base plate, the two clamping cylinders are arranged at a first station and a second station under the two striking pieces correspondingly, and the striking piece can strike a test mold in a test mold barrel; a rotary driving piece is arranged between the two clamping cylinders, theclamping cylinders are fixed to an output shaft of a rotary driving piece through telescopic rods, the axes of the telescopic rods are perpendicular to the axis of the output shaft, the axes of the two telescopic rods coincide, and the rotary driving piece can drive the telescopic rods to rotate in a vertical plane so that the two clamping cylinders can exchange stations.

Description

Technical field[0001]The present disclosure belongs to the technical field of construction engineering, and specifically relates to a Marshall compaction instrument and method.Background technique[0002]The statements here only provide background art related to the present invention, and do not necessarily constitute prior art.[0003]The Marshall test is commonly used in the design specifications of highway asphalt pavement to evaluate the performance of asphalt mixtures. The forming steps of the Marshall standard compaction method are as follows: Weigh the mixed asphalt mixture evenly-the amount required for a test piece. Take out the preheated test mold cylinder and sleeve from the oven, shovel the mixture into the test mold cylinder with a small shovel, insert a knife or a large screwdriver along the periphery, and level the surface of the asphalt mixture into a convex arc surface.[0004]After the temperature of the mixture meets the required compaction temperature, place the test m...

Claims

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Application Information

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IPC IPC(8): G01N1/28
CPCG01N1/286
Inventor 陈伟
Owner SHANDONG JIANZHU UNIV