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A device and method for testing the adhesion between fiber and asphalt

A technology for testing devices and testing methods, applied in measuring devices, adopting mechanical devices, instruments, etc., can solve problems such as shortages, and achieve the effects of simple operation, convenient manufacture and operation, and simple device structure

Active Publication Date: 2018-03-13
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the current technical problem of lacking relevant test devices and methods to characterize the adhesion performance of fibers and asphalt materials, the present invention designs a device and method for testing the adhesion performance of fibers and asphalt materials

Method used

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  • A device and method for testing the adhesion between fiber and asphalt
  • A device and method for testing the adhesion between fiber and asphalt
  • A device and method for testing the adhesion between fiber and asphalt

Examples

Experimental program
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Embodiment 1

[0029] The fibrous asphalt adhesion performance testing device adopted in the present embodiment 1 comprises asphalt pouring groove 1, test form bottom plate 2, metal clip 3, fiber caulking 4 and bolt 5 (see figure 1 ), two pitch filling grooves 1 with a length of 6 cm are an axisymmetric octagonal notch container member with a bottom plate and an open side wall, and form a closed groove with the metal clamp block 3 at the end of the open side wall. The side wall of the opening is located on the vertical plane of the centerline of the axis of the container member. The width of the asphalt filling groove 1 is narrowed at the end of the opening side wall. On both sides of the metal clamp block 3, the total length of the three is about 19cm. The fiber caulking 4 is the groove at the intersection of the three and the axis centerline of the test device, and its depth is half the height of the asphalt pouring groove 1 (see Figure 4 ) with a width of 3mm. The fiber caulking 4 runs...

Embodiment 2

[0037] The fibrous asphalt adhesion performance testing device adopted in the present embodiment 2 comprises asphalt pouring groove 1, test mold bottom plate 2, metal clip 3, fiber caulking 4 and bolt 5 (see Figure 5 ). The asphalt pouring groove 1 is an axisymmetric octagonal notch container member with a bottom plate and an open side wall with a length of 6 cm, and forms a closed groove with the metal clamp block 3 positioned at the end of the open side wall, and the open side wall Located on the vertical plane of the center line of the container member axis, the width of the asphalt pouring groove 1 is narrowed at the end of its opening side wall, the asphalt pouring groove 1 is detachably placed on the bottom plate 2 of the trial mold, and the fiber caulking 4 is the asphalt pouring groove 1 The groove of the side wall and the metal clamp block 3 at the intersection with the center line of the shaft, its depth is half of the height of the asphalt pouring groove 1 (see F...

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Abstract

The invention provides a device and a method for testing the adhesion performance of fibers and asphalt. The test device includes an asphalt pouring tank, a test mold bottom plate, clamping blocks, fiber caulking and fastening devices. The pitch pouring tank is an axisymmetric polygonal notch container member with a bottom plate and an open side wall, and is located at The clamp block at the end of the open side wall forms a closed groove, and the width of the open side wall end is narrowed, and is detachably placed on the bottom plate of the test mold. The slot and the groove at the intersection of the clamp block and the axis center line of the test device run through the entire test device, and bolts are respectively arranged on the beginning and end sides of the test device. The method is to quantitatively test the adhesion of the fiber itself to the asphalt by wrapping various fibers into fiber bundles with similar circular cross-sectional diameters, and calculating the mass change of the fiber bundles before and after stretching out the asphalt at the temperature of the asphalt softening point performance, making the test results more objective and comparable.

Description

technical field [0001] The invention relates to a material test device and method, in particular to a fiber adhesion performance test device and method in asphalt mortar containing fiber materials, in particular to a fiber and asphalt material adhesion performance test device and method. Background technique [0002] Fiber asphalt mixture is widely used in domestic and foreign projects. The mixture utilizes the reinforcing and toughening effect of the fiber material on the asphalt to enhance the high temperature stability and fatigue resistance of the asphalt mixture. Its anti-high temperature deformation and fatigue cracking performance are closely related to the performance of the fiber itself and the adhesion performance of asphalt. In order to research the fiber asphalt mixture with better performance, it is particularly important to test the fiber adhesion performance. However, there are many kinds of asphalt mixture fibers, and the bonding performance between differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/04
Inventor 肖鹏江杰丁燕
Owner YANGZHOU UNIV
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