Asphalt Ductility Testerastm D6084 Auto Ductilometer for Elastic Recovery of Asphalt Materials Test

• Customization: Available
• After-sales Service: 2 Years
• Warranty: 2 Years
• Model NO.: GD-4508G-1
• Max Diameter of Workpiece: <500mm
• Mass Scope of Workpiece: <900kg
• Type: Universal Testing Machine
• Maxcapacity: <1000KN
• Accuracy Grade: 0.5
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Display: Digital
• Control: Computer Control
• Weight: 100-500Kg
• Power Source: AC220V
• Oil Cylinder Position: Under
• Bitumen Test: Ductility and Elastic Recovery of Asphalt Mixture
• Ductilometer: Elastic Recovery of Bituminous Materials
• Feature: It Is Multifunctional
• Heating Method: Heating Tube Heating
• Measurement Range: 1.5m
• Tensile Speed: 1cm / Min, 5cm / Min
• Test Standard: ASTM D6084 Ductilometer
• Net Weight: 285kg
• Dimension: 237cm*53cm*95cm(Length*Width*Height)
• Transport Package: Plywood
• Trademark: GOLD
• Origin: Made in China
• HS Code: 9031809090
• Production Capacity: 100sets/Month

Product Description

Product Description

ASTM D6084 Auto Ductilometer for Elastic Recovery of Asphalt Materials Test
 

Asphalt ductility tester is a very important instrument in the fields of road engineering and asphalt material research.

The asphalt ductility tester is mainly used to measure the ductility of asphalt. The elongation index reflects the degree of deformation that asphalt can undergo when subjected to tensile stress. Simply put, it is the ability of asphalt to be stretched without breaking. In road construction, the ductility of asphalt directly affects the flexibility and crack resistance of the pavement. If the asphalt has sufficient ductility, the road surface can better withstand tensile deformation under external forces such as vehicle driving, reduce the occurrence of cracks, and thus extend the service life of the road.

Ductility is the ability of a material to undergo a visible enduring deformation through elongation (decreasing of cross section area). It expresses the extent to which the material can be plastically deformed without fracture. The opposite material behavior is brittleness. 

The test for elastic recovery is applicable to binders modified with elastomers and serves to demonstrate the modification of the binder. The sample is stretched at a fixed temperature and speed to a maximum of 20 cm and then severed. After a prescribed period of time, the degree of elastic recovery is determined relative to the original length.

Principle

Principle of tensile testing
The asphalt ductility tester operates based on tensile testing. Firstly, the pre treated asphalt sample is shaped into a specific form, typically an "8" or dumbbell shape. This is because these shapes can be subjected to relatively uniform force during the stretching process and meet relevant testing standards.
Then place the sample in the instrument's water tank, where the temperature can be controlled. This is because the physical properties of asphalt are greatly affected by temperature. At a specified temperature (such as 25 ºC), asphalt is in a suitable state for accurate measurement of its ductility.
After starting the asphalt ductility tester, the asphalt sample is stretched at a certain speed (such as 5cm/min) through a mechanical device, as if pulling the asphalt sample at both ends to make it longer. During the stretching process, the instrument accurately measures the tensile length of the asphalt sample from the beginning of stretching to the final fracture, which is the elongation of the asphalt, usually measured in centimeters (cm).

Reference standard

1. GB/T 4508 "Standard Test Method for Ductility of Bitumen".
2. T 0605-2011 "Standard Test Method for Ductility of Bituminous Materials" in JTG E20-2011 "Application Handbook of Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering".
3. NB/SH/T 0814 "Force Ductility Test of Bituminous Materials."
4. NB/SH/T 0737 "Standard Test Method for Elastic Recovery of Asphalt Materials by Ductilometer."
5. T 0662-2000 "Standard Test Method for Elastic Recovery of Asphalt Materials by Ductilometer" in "Application Handbook of Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering".
6. ASTM D113-17 "Standard Test Method for Ductility of Asphalt Materials". ASTM D6084-06 "Standard Test Method for Elastic Recovery of Asphalt Materials by Ductilometer".

Features

1. This instrument is multi-purpose, it is a multifunctional asphalt tester integrating asphalt ductility test, asphalt force-ductility test and asphalt elastic recovery test.
2. It adopts industrial control touch screen, advanced technology which can achieve data transmission function.
3. The novel tension transmission design adopts the combination of imported screw and guide rail. The stretching process is smooth and synchronous, no ditter, uniform speed, the ductility and tensile force are precisely displayed.
4. It adopts high-power compressor refrigeration, shielded cold and heat balance pressurized circulation system, fast cooling speed and uniform bath temperature.
5. It can do the tensile test, force test and elastic recovery test of 3 samples at a time.
6. The average ductility value, the maximum tensile force, and the elongation deformation value at the maximum tensile force are automatically calculated and displayed.
7. The designed two-layer structure of the ductility water bath was granted a national patent, the Patent No. is ZL201821604657.9.

Product Parameters

Measurement range	1.5m (±10mm)
Heating method	heating tube heating
Heating power	4500W
Bath liquid circulation	cold and heat balance circulation system
Temperature control range	5ºC ~ 50ºC adjustable, digital display, temperature display resolution 0.01ºC
Temperature control accuracy	± 0.1ºC
Ductility display	industrial control touch screen real-time display
Force measurement range	(0~300)N

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