Asphalt ductility test mode convenient to mount and dismount, and manufacturing method of test sample

A technology that is easy to disassemble and assemble, and is used in the field of road and bridge engineering. It can solve the problems of labor, affecting the test accuracy, and labor, and achieve the effect of eliminating the need for fixing bolts, improving the test accuracy, and ensuring absolute smoothness.

Active Publication Date: 2019-06-14
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the asphalt is filled with the figure-of-eight test mold, the excess asphalt needs to be scraped off the upper surface with a scraper, which is time-consuming, labor-intensive, and labor-intensive. In the process of scraping, it is easy to cause deformation of the asphalt test, affecting the accuracy of the test, and it is difficult to ensure the top and bottom of the test smooth surface
In order to solve this technical problem, the Chinese invention patent application (CN201610572751.X) discloses a block fixing device for ductility samples. Although it can ensure that the upper and lower surfaces of the test are smooth and smooth to a certain extent, it is installed on the top plate. Three drilling holes were drilled, one of which was a grouting hole and two overflow holes. After the formwork was removed, a scraper was still needed to scrape off the overflowing asphalt in the overflow holes. That is to say, it did not completely solve the technical problem of the smooth surface of the asphalt. The most important thing is that it is difficult to ensure the compactness of the asphalt filling because it only depends on the asphalt overflowing from the overflow hole on the top plate to judge whether the asphalt is filled.
In addition, the two side form baffles welded on the bottom plate are prone to deformation during the disassembly and storage process (such as collision, pressure), and the side form baffles are prone to deformation, which affects reuse. Moreover, the bottom plate, top plate, The ductility test mold is set separately, and additional screws and nuts are required to fix it, which is troublesome to disassemble

Method used

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  • Asphalt ductility test mode convenient to mount and dismount, and manufacturing method of test sample
  • Asphalt ductility test mode convenient to mount and dismount, and manufacturing method of test sample
  • Asphalt ductility test mode convenient to mount and dismount, and manufacturing method of test sample

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as Figure 1-5 , shown in 7, a kind of asphalt ductility test mold that is easy to assemble and disassemble includes a first end mold 1, a second end mold 2, a first side mold 32, a second side mold 42, a bottom plate 41, and a top plate 31. The first end mold 1, the second end mold 2, the first side mold 32, the second side mold 42, the bottom plate 41, and the top plate 31 form an asphalt mold cavity 6, and the first side mold 32 and the top plate 31 are integrally formed. The second side mold 42 is integrally formed with the bottom plate 41, thus forming the top plate 31 with side molds and the bottom plate 41 with side molds, which can accurately control the relative positions of the side molds, the top plate 31 and the bottom plate 41, and improve the test accuracy .

[0040] Both the first side mold 32 and the first end mold 1 and the second end mold 2 are clamped and assembled by the locking device 5, and the second side mold 42 is connected to the first end ...

Embodiment 2

[0049] A method for making an asphalt ductility test sample, comprising the steps of:

[0050] (1) Provide the asphalt ductility test mold that is easy to disassemble and assemble in Example 1, and apply the release agent evenly on the positions of the first side mold 32, the second side mold 42, the bottom plate 41, and the top plate 31 corresponding to the mold cavity 6;

[0051] (2) Place the bottom plate 41 with the second side form 42 on the test bench horizontally with the second side form 42 facing upwards, and the first end form 1 connects with the second side form 42 through the corresponding dovetail groove on it. The male buckle 52 on one end face is slidably inserted and assembled from the top to the bottom of the second side mold 42, and the second end mold 2 connects with the male buckle on the other side end surface of the second side mold 42 through the corresponding dovetail groove on the second side mold 42. 52 from the top of the second side mold 42 to the b...

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Abstract

The invention discloses an asphalt ductility test mode convenient to mount and dismount. The asphalt ductility test mode comprises a first end mode, a second end mode, a first side mode, a second sidemode, a baseboard and a roof; the first end mode, the second end mode, the first side mode, the second side mode, the baseboard and the roof form an asphalt mold cavity in an enclosure manner; the first side mode and the roof are integrally formed, the side mode and the baseboard are integrally formed; the first side mode and each of the first end mode and the second end mode are clamped and assembled through a locking device, and a second side mode and each of the first end mode and the second end mode are clamped and assembled through the locking device; each locking device adopts a dovetail male thread and a dovetail groove; the test mode is vertically arranged, and the asphalt is poured through an asphalt pressure pouring device. The invention further discloses a method for manufacturing a test sample by using the asphalt ductility test mode convenient to mount and dismount. The test mode disclosed by the invention has the technical effects of being high in test precision, strongin integrality, one-step formed, smooth in surface and high in compactness.

Description

technical field [0001] The invention relates to the field of road and bridge engineering, in particular to a disassembled asphalt ductility test mold and a method for making a sample. Background technique [0002] Asphalt ductility refers to the degree of ductility of asphalt, and the greater the ductility, the better the shaping of the asphalt. At present, in order to test the ductility of asphalt, the ductility tester and the standard figure-eight test mold are mainly used for testing. [0003] When the asphalt is filled with the figure-of-eight test mold, the excess asphalt needs to be scraped off the upper surface with a scraper, which is time-consuming, labor-intensive, and labor-intensive. In the process of scraping, it is easy to cause deformation of the asphalt test, which affects the test accuracy, and it is difficult to ensure that the test is up and down. The surface is flat and smooth. In order to solve this technical problem, the Chinese invention patent appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/44
Inventor 胡振华王颖王崇革张宪堂
Owner SHANDONG UNIV OF SCI & TECH
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