CN208476720U

CN208476720U - A kind of spill box suitable for asphalt mixture density test

Info

Publication number: CN208476720U
Application number: CN201821283636.1U
Authority: CN
Inventors: 黄飞
Original assignee: Suzhou Traffic Engineering Test Center Co Ltd
Current assignee: Suzhou Traffic Engineering Test Center Co Ltd
Priority date: 2018-08-08
Filing date: 2018-08-08
Publication date: 2019-02-05
Anticipated expiration: 2028-08-08

Abstract

The utility model discloses a kind of spill boxes suitable for asphalt mixture density test, belong to the test apparatus or equipment of Load materials.Including electronic balance, water level sensor, water circulating pump, heating refrigerating plant, temperature controller, time display, heat-preserving cover plate and bottom pedestal and bracket.The utility model carries out automatically controlling water tank water temperature by heating refrigerating plant；Water circulating pump can be opened according to liquid level indicator light by water level sensor, overflow water is recycled；It installs detachable transparent organic glass heat-preserving cover plate additional on water tank simultaneously, reduces water temperature fluctuation in test；Facilitate testing crew to carry out reading operation additionally by time display is installed additional, prevents soaking time caused by the carelessness because of testing crew too short or too long, influence the precision of test.

Description

A kind of spill box suitable for asphalt mixture density test

Technical field

The utility model belongs to the test apparatus or equipment of Load materials, and in particular to is related to a kind of suitable for pitch mixing Expect the spill box of density test.

Background technique

1, asphalt concrete pavement have good road-ability, wear-resisting, low noise, construction time be short, maintenance just Victory is not easy the advantages that fugitive dust and renewable recycling, thus obtains in the construction fields such as highway, municipal administration in recent years extensively Application.The construction level that the quality of asphalt concrete pavement depends on the quality of asphalt and scene paves, is compacted. It was verified that the voidage and compactness of asphalt are to examine the key index of quality of asphalt mixtures and construction quality, Suitable voidage and compactness can be avoided asphalt concrete pavement and generate the diseases such as Early Rutting, Moisture Damage, and pitch is mixed The density for closing material is then the basis of voidage and compactness detection.Therefore, asphalt mixture density test is asphaltic concrete road One of the main indicator of face quality control.

2, according to existing test method, People's Republic of China's professional standard JTG E20-2011 " highway engineering pitch And Asphalt Mixture Experiment regulation ", it is surface drying method that it is also most basic method that the density test of asphalt is the most frequently used.Pass through The test specimen obtained using molding test specimen in asphalt room or the methods of engineering site drill core, cutting, removes test specimen table The floating grain in face weighs the dry weight of test specimen, and spill box water temperature is then maintained at 25 DEG C ± 0.5 DEG C, hangs up mesh basket, immerses overflow In water tank, water level is adjusted, 3~5min in immersion is placed in mesh basket by balance leveling and return-to-zero, then test specimen, weighs matter in water Amount, test specimen is finally taken out from water, wipes surface of test piece water with the wet towel wrung out, weighs test specimen surface drying quality.Pass through calculating Obtain the bulk density or bulk specific gravity of test specimen.

3, during the test, " spill box water temperature is maintained at 25 DEG C ± 0.5 DEG C, hangs up mesh basket, immerses overflow water In case, water level is adjusted, 3min~5min in immersion is placed in mesh basket by balance leveling and return-to-zero, then test specimen, weighs matter in water Amount " is to influence the key link of test accuracy, is primarily due to that the test temperature-controlled precision is more demanding, and soaking time is longer, is needed Want special timing device.Common spill box majority is the immersion balance without temperature controlling function on the market, needs manually to adjust Water temperature, time-consuming and laborious and heat insulating ability are bad；Either according to thermostatic water bath be transformed, every time fill the water after constant temperature time compared with It is long, and overflow is inconvenient, influences operating efficiency.

Summary of the invention

In order to overcome existing spill box temperature-controlled precision not high, temperature fluctuation is larger in insulating process, water when overflow Position keeps non-constant, and during the test, and soaking time inaccuracy, the utility model provides one kind and mixes suitable for pitch Expect the spill box of density test.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

Using independent case body formula structure, each independent case body is not interfere with each other；Water tank water temperature is carried out by heating refrigerating plant It automatically controls；Water circulating pump can be opened according to liquid level indicator light by water level sensor, overflow water is recycled；Simultaneously Install detachable transparent organic glass heat-preserving cover plate additional on water tank, the openable half fan cover board when loading test specimen, when test closes Cover board reduces water temperature fluctuation；Facilitate testing crew to carry out reading operation additionally by time display is installed additional, prevents because testing people The carelessness of member causes soaking time too short or too long, influences test data.

The beneficial effects of the utility model are:

It is simple and quick, it may be implemented the accurate control to water temperature and time, reduce environmental factor and human factor It influences.

Compared with existing equipment, technology, the utility model has the advantages that:

In addition to cabinet base and bracket need designed, designed to produce, other accessories make the utility model such as heating refrigerating plant Compressor and heating rod, water level sensor, water circulating pump, liquid level indicator light and temperature, time display, Vehicles Collected from Market kind There are many class, manufacture without otherwise designed, only need to match buying by the power of design, model, can be extensive in asphalt test room Popularization and use.

Detailed description of the invention

Fig. 1 is the floor map of the utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

In figure: 1, electronic balance；2, power switch；3, upper liquid level indicator light；4, lower liquid level indicator light；5, water circulating pump is opened It closes；6, heater switch；7, refrigeration switch；8, temperature controller；9, time display；10, heat-preserving cover plate；11, overflow hole；12, Mesh basket；13, lower liquid level water level sensor；14, discharge outlet；15, water circulating pump；16, refrigerating plant is heated；17, upper liquid level water level Sensor；18, cabinet base and bracket.

Specific embodiment

As depicted in figs. 1 and 2, the utility model is a kind of spill box suitable for asphalt mixture density test, packet It includes electronic balance (1), power switch (2), upper liquid level indicator light (3), lower liquid level indicator light (4), water circulating pump switch (5), add Thermal switch (6), refrigeration switch (7), temperature controller (8), time display (9), heat-preserving cover plate (10), overflow hole (11), net Basket (12), lower liquid level water level sensor (13), discharge outlet (14), water circulating pump (15), heating refrigerating plant (16), upper liquid level water Level sensor (17), cabinet base and bracket (18).

Heat-preserving cover plate (10) is two pieces of transparent organic glass heat-preserving cover plate compositions, splices and opens circular hole among position, can power Sub- balance (1) connect nylon rope or iron wire used with mesh basket (12) and passes through.

Heating refrigerating plant (16) use carries out refrigeration with 1800w compressor and 2500w heating rod is heated.

Steps are as follows for the use of the utility model:

1, it turns on the power switch (2), closes dual sided outlets (14), the supreme liquid level water level of clean water is injected into cabinet and is passed Sensor (17), upper liquid level indicator light (3) light, and guarantee water outflow from overflow hole (11), reach lower liquid level water level sensor (13) position, liquid level indicator light (4) lights at present for this.

2, test temperature is set by temperature controller (7), opens heater switch (5) and refrigeration switch (6) system starts Starting heating refrigerating plant (14), covers heat-preserving cover plate (9), when test temperature to be achieved, places electronic balance (1) and simultaneously levels, Then mesh basket (11) are hung up.

3, water circulating pump switch (5) is opened, water circulating pump switch (5) is closed when upper liquid level indicator light (3) lights again, Electronic balance (1) is returned to zero when water level is steady.

4, heat-preserving cover plate (9) then are opened, test test specimen is put into mesh basket (11), water circulating pump switch (5) is opened, to upper Water circulating pump switch (5) is closed when liquid level indicator light (3) lights again, covers heat-preserving cover plate (9), it is aobvious in time display (8) Electronic balance (1) reading is read when showing 3~5min of time, this is quality in test specimen water.

Claims

1. a kind of spill box suitable for asphalt mixture density test, it is characterised in that: the electronic balance of bottom belt hook (1) it is placed on cabinet base and bracket (18), bracket aperture, passes through the thin nylon rope or iron wire not absorbed water with mesh basket (12) Connection；Power switch (2) controls general supply；Upper liquid level indicator light (3) connect with upper liquid level water level sensor (17)；Lower liquid level refers to Show that lamp (4) is connect with lower liquid level water level sensor (13)；Water circulating pump switch (5) is connect with water circulating pump (15)；Heater switch (6), refrigeration switch (7), temperature controller (8) and heating refrigerating plant (16) connection；Time display (9) is when test specimen soaks It can open and cover heat-preserving cover plate (10)；Superfluous water is discharged by overflow hole (11), keeps constant water level；Off-test can incite somebody to action Water tank is discharged by discharge outlet (14) in water.