CN205280483U

CN205280483U - Experimental mould of bitumen ductility

Info

Publication number: CN205280483U
Application number: CN201521136931.0U
Authority: CN
Inventors: 文科; 唐成; 贺玲娟
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-06-01
Anticipated expiration: 2025-12-31

Abstract

The utility model discloses an experimental mould of bitumen ductility, including two end mould pieces and with two with end mould piece complex side form piece, the tip of end mould piece is provided with the mounting hole, the mould still includes a bottom plate, two end mould pieces symmetry set up on the length direction of bottom plate, two side form pieces distribute on the width direction of bottom plate, two end mould pieces, two side form pieces and bottom plate enclose into an examination die cavity. The utility model discloses avoided scraping mold process medium pitch sample and the examination produces the gap between the mould, has guaranteed the accuracy of test result, avoided simultaneously installing the pitch sample and make the pitch sample produce the condition of deformation in advance on the metal column easily, and the installation no longer need prepare extra examination stool, more do benefit to experimental going on smoothly to save time.

Description

A kind of bitumen ductility test mould

Technical field

The utility model belongs to test apparatus or the equipment technical field of Load materials, is specifically related to a kind of bitumen ductility test mould.

Background technology

Pitch is a kind of road starting material being widely used in road engineering, and its performance is very big for the pavement performance impact of asphalt. Wherein, bitumen ductility characterizes pitch ductility, is the important indicator of evaluation pitch plasticity, and degree of prolonging is more big, shows that the plasticity of pitch is more good. Ductility test is very extensive in the field of road application of China with its feature that testing installation is less demanding, simple and easy to do.

Before ductility test starts, when needing to be placed on groove end fixing metal post the hole at the die trial two ends filling test specimen respectively, owing to bottom lacks supporting plate, installation process easily make test test specimen produce distortion in advance, especially for the laboratory technician lacked experience, die trial is installed on groove end metal post and more can expend the longer time, the accuracy of experimental result can be affected like this. When installation mold, two side modules easily occur not mating problem, increase setup time, are unfavorable for test accuracy. During installation mold, it is necessary to smear sealing coat, due to the prolongation of the time of building, separant easily evaporates inefficacy, makes asphalt adhesive on mould. And, owing to three parallel test die trials are not exclusively the same, not easily complete when the hole at die trial two ends being placed on groove end fixing metal post. Meanwhile, scraping mould process, owing to holding mould, side mould and die trial base plate independently, it is easy to make to produce gap between pitch sample and die trial, affect the accuracy of test-results.

Summary of the invention

For the defect existed in above-mentioned prior art or deficiency, the purpose of this utility model is, it is provided that a kind of bitumen ductility test mould.

In order to realize above-mentioned purpose, the utility model adopts following technical scheme:

A kind of bitumen ductility test mould, comprise two end modules and with two with hold the side modules that coordinate of module, the end of end module is provided with open holes, described mould also comprises a base plate, two described end module symmetry are arranged on the length direction of base plate, two side module distribution are on the width of base plate, and two end modules, two side modules and base plate surround a die trial groove.

Further, described open holes comprises the first half ring and the 2 half rings, and the two is hinged; The first half rings are provided with card buckle, the 2 half ring is provided with the card groove buckled with card and coordinate.

Further, the sidewall of described die trial groove and bottom surface are provided with adherent layer.

Can selection of land, described adherent layer adopt nanometer layer.

Further, the thickness of described adherent layer is 0.4��0.6mm.

Compared with prior art, the utility model has following technique effect:

1, arranging base plate, base plate and side module are connected, and avoid to scrape and produce gap between mould process medium pitch sample and die trial, ensure that the accuracy of test-results; Avoid simultaneously and it is arranged on metal post by pitch sample easily to make pitch sample produce the situation of distortion in advance, and installation process no longer needs to prepare extra die trial base plate, is more conducive to carrying out smoothly of test, thus saves time.

2, open holes adopts the structure that card button and card groove match so that the process being installed on metal post by pitch sample is simple and convenient.

3, the sidewall of die trial groove and bottom surface are provided with adherent layer, for preventing asphalt adhesive at mould, are convenient to clean.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of side mould and base plate;

Fig. 3 is end modular structure schematic diagram;

Number in the figure represents: 1 end module, 2 side modules, 3 open holess, 4 base plates, 5 die trial grooves, 6 adherent layers, 301 the first half rings, 302 the 2 half rings, 303 card buttons, 304 card grooves.

Below in conjunction with drawings and Examples scheme of the present utility model done and explain in further detail and explanation.

Embodiment

Defer to technique scheme, participate in Fig. 1-3, bitumen ductility test mould of the present utility model, comprise two end modules 1 and with two with hold the side modules 2 that coordinate of module 1, the end of end module 1 is provided with open holes 3, described mould also comprises a base plate 4, and two described end modules 1 are symmetricly set on the length direction of base plate 4, and two side modules 2 are distributed on the width of base plate 4; Two end module 1, two side modules 2 and base plate 4 surround a die trial groove 5.

Pitch in use, is injected in die trial groove 5 by mould of the present utility model, forms pitch sample, hot scraper is adopted to strike off the pitch exceeding die trial groove 5, because side module 2 and base plate 4 are connected, avoid and produce gap between pitch sample and die trial groove 5, ensure that the accuracy of test-results; Pitch sample needs to be installed on groove end metal post, the open holes 3 being about in end module 1 is enclosed within metal post, due to the existence of base plate 4, avoid the situation easily making pitch sample produce distortion in advance in installation process, and installation process no longer needs to prepare extra die trial base plate, it is more conducive to carrying out smoothly of test, thus saves time; After installing, base plate 4 and the one-piece construction of side module 2 can be taken off.

Further, described open holes 3 comprises the first half ring the 301 and the 2 half rings 302, and the two is hinged; The first half rings 301 are provided with card and buckle 303, the 2 half ring 302 is provided with and buckles the 303 card grooves 304 coordinated with card. Open holes 3 of the present utility model can open and close, when open holes 3 is enclosed within metal post by needs, make card buckle 303 and depart from card groove 304, rotate the first half rings 301, opening installation hole 3, metal post, between the first half ring the 301 and the 2 half rings 302, rotates the first half rings 301, card is buckled in 303 embedding card grooves 304, thus pitch sample is installed on groove end metal post. Said process is simple to operation.

Further, the sidewall of described die trial groove 5 and bottom surface are provided with adherent layer 6. Can selection of land, described adherent layer 6 adopts nanometer layer, for preventing asphalt adhesive at mould, be convenient to clean.

Further, the thickness of described adherent layer 6 is 0.4��0.6mm, and this thickness meets the requirement of the specification of the pitch sample of making.

Claims

1. a bitumen ductility test mould, comprise two ends module (1) and with two with hold module (1) the side modules (2) that coordinate, the end of end module (1) is provided with open holes (3), it is characterized in that, described mould also comprises a base plate (4), two described ends module (1) are symmetricly set on the length direction of base plate (4), two side modules (2) are distributed on the width of base plate (4), two ends module (1), two side modules (2) and base plate (4) surround a die trial groove (5).

2. bitumen ductility test mould as claimed in claim 1, it is characterised in that, described open holes (3) comprises the first half ring (301) and the 2 half rings (302), and the two is hinged; The first half rings (301) are provided with card buckle (303), the 2 half ring (302) is provided with the card groove (304) buckled (303) with card and coordinate

3. bitumen ductility test mould as claimed in claim 1, it is characterised in that, sidewall and the bottom surface of described die trial groove (5) are provided with adherent layer (6).

4. bitumen ductility test mould as claimed in claim 3, it is characterised in that, described adherent layer (6) adopts nanometer layer.

5. bitumen ductility test mould as claimed in claim 3, it is characterised in that, the thickness of described adherent layer (6) is 0.4��0.6mm.