The ductility values of bitumen … 11 TO PERFORM DUCTILITY TEST ON ASPHALT. Ductility test of bitumen is one of the main testes that you need to do during road construction.
APPLICATIONS OF DUCTILITY TEST A certain minimum ductility is necessary for a bitumen binder.
Bitumen Tests- Ductility Test Ductility is the property of bitumen that permits it to undergo great deformation or elongation.
The ductility test (Figure 1) measures asphalt binder ductility by stretching a standard-sized briquette of asphalt binder (Figure 2) to its breaking point. ASTM Standards.
Safety & Precautions
[ASTM DESIGNATION: D 113-86]RELATED THEORY Ductility test on asphalt, DUCTILITY. If the bitumen has low ductility value, the bituminous pavement may crack, especially is cold weather.
The UTB-1400 Ductility Testing Machine is used to determine the ductility of bituminous materials in a briquette mould by measuring the breaking elongation at a constant speed of 50 mm/min. While the test is in operation, it is checked whether the sample is immersed in water at depth of at least 10 mm. The H-1068 Ductility machines meet ASTM D113, D6084 and AASHTO T51, T301 and T300 when H-1021 is utilized. 11 TO PERFORM DUCTILITY TEST ON ASPHALT.
[ASTM DESIGNATION: D 113-86]RELATED THEORY Ductility test on asphalt, DUCTILITY. Ductility test on bitumen measures the distance in centimeters to which it elongates before breaking.
The semi-automatic ductility testing apparatus from Koehler Instruments has been designed to adhere to the ASTM D113 test method plus all related methods, but also offers a range of … C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials. The distance at which the bitumen thread of each specimen breaks is recorded (in cm) to report as ductility value.The average penetration value of 3 tests of a given bitumen sample is reported. The further development of the well-known ductility test serves to determine the cohesive characteristics of a binder, the test is used in the standard for polymer-modified bitumen.
Theory of Ductility Test on Bitumen The ductility test gives a measure of adhesive property of bitumen and its ability to stretch. The stretched distance in centimeters at breaking is then reported as ductility.
D402/D402M Test Method for Distillation of Cutback Asphalt.
Ductility is defined as the distance in cm, to which a standard sample or briquette of the material will be elongated without breaking. The Ductility test has been performed and the ductility value has been calculated as 116 cm. If the bitumen is not ductile enough it may crack under heavy loads. This is because of the temperature changes in the bituminous mixes and the repeated deformations that occur in flexible, pavements due to the traffic loads.
It is designed for testing 3 specimens simultaneously. A sample is stretched at a fixed temperature and speed and the necessary tensile force is measured and recorded continuously. EXPERIMENT NO. Installlation Humboldt H-1068 Ductility machines are shipped complete, ready for operation. Reports.
Standard units are supplied for operation on 120V 60Hz or …
The Internal tank is made of stainless steel.
EXPERIMENT NO. The ductility of a bituminous material is defined as the distance in centimeters, to which it will elongate before breaking when two ends of a briquet specimen of the material, are pulled apart at a specified speed and a specified temperature. Ductility of bitumen is its property to elongate under traffic load without getting cracked in road construction works. Like the penetration test, this test has limited use since it is empirical and conducted at only one temperature (25 ° C (77 ° F)).
D5/D5M Test Method for Penetration of Bituminous Materials. D1754/D1754M Test Method for Effects of Heat and Air on Asphaltic Materials (Thin-Film Oven Test)
Temperature was not maintained in the lab so the value may differ at 25 o C as we performed at the Lab temperature.
In the absence of any speciﬁed variations in the test method, the test procedure as outlined in these instructions may be followed.
Standard Ductilometer for Ductility test - Ductimeter: Controls bitumen testing equipment.
The ductility of a bituminous material is defined as the distance in centimeters, to which it will elongate before breaking when two ends of a briquet specimen of the material, are pulled apart at a specified speed and a specified temperature.
Ductility Test of Bitumen-Definition, Procedure & Determination Methods May 5, 2018 August 21, 2019 ReadCivil 0 Comments.
This test is done to determine the ductility of distillation residue of cutback bitumen, blown type bitumen and other bituminous products as per IS: 1208 – 1978.
I … The ASTM D-113 for 60/70 grade the value of Ductility = 100 min.