Evaluation of dropping and softening point methods in the petrochemical industry. Read a detailed procedure of bitumen penetration test with sample data. Dropping and softening point of lubricants and bitumen. Conclusion to conclude, the final temperature of the softening point is 48. Standard test method astm d36 for softening point of.
Bitumen softening point test using ringball apparatus. The point at which the bitumen or the tar is softened is the accurate temperature substance achieves specific degree of softening. In the first revision, the grades of fluxed native asphalt were deleted and essentially the paving grades were introduced. It is the temperature at which the substance attains a particular degree of softening under specified condition of the test. Penetration test peneration is conducted with the help of penetrometer apparatus. Trikona conskill the online learnin slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Make at least three determinations at points on the surface of the sample not less than 10mm apart and not less than 10mm from the side of the dish. Generally higher softening point indicates lower temperature susceptibility and is preferred in warm climates. Based on two different comparative studies of lubricating grease and bitumen specimens, fully automated dropping and softening point tests were assessed to act as a benchmark for standard. This method is useful in determining the consistency of bitumen as one element in establishing the uniformity of shipments or sources of supply. The differences in the assesement of softening point between the tests is clearly largely a matter that the end point of the test measures a different modulus.
This is the reason why the softening point of bitumen is determined. Many tests are done to ensure the quality of bitumen. Definition softening point is the temperature at which the substance attains a particular degree of softening under specified conditions of test. The softening point of bitumen or tar is the temperature at which the substance attains particular degree of softening. The softening point of various bitumen grades used in. The softening point is reported as the mean of the temperatures at which the two disks soften enough to allow each ball, enveloped in bitumen, to fall a distance of 25 mm 1. The bituminous material tested is completely melted by heating it to a temperature of 75 to 100 degree celcius above the approximate softening point until it becomes thoroughly fluid. Exp 12 softening point of bitumen civil engineers pk. We are closely monitoring the changing situation with the covid19 virus outbreak.
The test conducted by using ring and ball apparatus. Softening point and penetration index of bitumen from parts. A number in parentheses indicates the year of last reapproval. May 22, 20 fully automated videorecorded softening point tests of bituminous materials according to mettler toledo instrument specified astm standards ensure comparable and reliable results. Apparatus required, theory, procedure, precautions, observations, reporting and recommended values of bitumen ductility is discussed in this article. Softening point is not a melting point, bituminous material do not melt but instead gradually change from semi solids to liquids on application to heating. Standard test method for softening point of bitumen ringand. In recent years, the flash point test results have been related to the hardening potential of asphalt.
Astmd36 standard test method for softening point of. This is tested to know the suitability of bitumen for road construction in a particular climate. Automatic ring and ball apparatus, bitumen testing. A brass ring containing a test sample of bitumen is suspended in liquid like water or glycerine at a given temperature. Standard test method for penetration of bituminous materials1. Heat samples for the minimum time necessary to ensure that they are sufficiently. Ringball test for softening point of bitumen, asphalt and. Utd0412 hot plate with magnetic stirrer which works conforming to en and astm standards. Bitumen softening point test asphalt softening point.
Release the needle for five seconds and measure the distance penetrated. To determine the softening point of asphaltic bitumen and fluxed native asphalt, road tar, coal tar pitch and blown type bitumen as per is. Conclusion to conclude the final temperature of the softening. The scope of this test is to provide a method for determining the consistency of semisolid and bituminous materials in which the sole or major constituent is either bitumen or tar pitch. Ring and ball apparatus, steel balls brass rings ball guide support thermometer bath with stirrer scope softening point test of bitumen as per is. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Sep 20, 2017 softening point test the softening point of bitumen is usually determined by ring and ball test. Bitumen penetration grade 160220 is a standard penetration grade bitumen usually used as a paving grade bitumen suitable for road construction and for the production of asphalt pavements with superior properties. Sep 25, 2018 the softening point of a bituminous material can be defined as the temperature at which this bituminous material further softens after its arbitrary softness point is reached. Softening point apparatus is available from humboldt as part of a complete line of asphalt test equipment. This test is done to determine the softening point of asphaltic bitumen and fluxed native asphalt, road tar, coal tar pitch and blown type bitumen as per is. There are various methods that are helpful in determining the softening point of a bituminous material. Ring and ball apparatus is used to conduct this test. Test spots for bitumen two grams of bitumen tested guarantee, does add ten milliliters suitable solvent to dissolve in the solvent of bitumen is repeated 8 cycles following.
Softening point test on bitumen we civil engineers. Pdf softening point and penetration index of bitumen from. Standard test method for softening point o f bitumen ringandball apparatus1 this standard is issued under the. Bitumen starts flowing at its softening point so if the softening point of a particular bitumen is exceeded by the atmospheric temperature at one poi. The test is conducted by using ring and ball apparatus. Softening point determination by the ringandball method is intended to evaluate the behavior of bituminous binders at elevated temperatures of use. What is the significance of softening point of bitumen for. Softening point of bitumen is taken as the temperature at which the sample soft enough to allow the ball, enveloped in the sample material, to fall a distance of 1 inch 25. Ductility of bitumen is its property to elongate under traffic load without getting cracked in road construction works. The essence of the ringandball method is that a small metal ball is pressed against a bitumen sample, piercing it. This test consists of two brass ring and two steel ball, using which the softening point of various bituminous materials are determined. As of now, we are able to fulfill orders but we will keep you posted as the situation evolves.
The ring and ball method of test for softening point of. The basic tests as penetration and softening point are dedicated to evaluate and classify unmodified bitumen. Utb0231e and utb0231a assemblies are used for determining the softening point of bituminous materials by ring and ball method with utd1412 or utd1410y hot plate. Softening point test for bitumen linkedin slideshare. Astm d36 test method for softening point of bitumen. Softening point test the softening point of bitumen is usually determined by ring and ball test. Standards for bitumen bitumen emulsions astm d4 bitumen astm bitumen bitumen emulsion adhesion test for bitumen experment for bitumen and asphalt astm adhesion of bitumen specific gravity test of bitumen astm d36 test method for softening point of bitumen english language standards social studies standards next generation science standards.
The softening point of a bituminous material can be defined as the temperature at which this bituminous material further softens after its arbitrary softness point is reached. The apparatus required for ductility test of bitumen are. The softening point is taken by two suitably positioned light barriers and the temperature is measured by a pt100 sensor placed in a central position. They gradually become softer and less viscous as the temperature rises. Definition of softening point of bitumen by ring and ball. Standard test method for softening point of bitumen ringandball apparatus1 this standard is issued under the. Standard test method for softening point of bitumen ring andball apparatus1 this standard is issued under the. Standards for bitumen bitumen emulsions astm d4 bitumen astm bitumen bitumen emulsion adhesion test for bitumen experment for bitumen and asphalt astm adhesion of bitumen specific gravity test of bitumen astm d36 test method for softening point of bitumen english language standards social studies standards next generation.
The softening point sp and penetration index pi of bitumen from parts of southwestern nigeria are important properties needed for better design and optimization of the upgrading process of. Softening point of bitumen indicates the point at which bitumen attains a particular degree of softening under specified conditions of the test. The test is conducted by using the ring and ball apparatus. A brass ring containing test sample of bitumen is suspended in liquid like water or glycerin at a given temperature. May 12, 20 objective for determination of softening point of a given bitumen. D36 test method for softening point of bitumen ringandball apparatus d92 test method for flash and fire points by cleveland open cup tester d1 test method for ductility of bituminous materials d140 practice for sampling bituminous materials d1754 test method for effects of heat andair onasphaltic materials thinfilm oven test. Automatic asphalt softening point tester is commonly used inpetroleum testing equipment. The instrument is based on the prc standard gbt4507. The softening point is defined as the mean of the temperatures at which the bitumen disks soften and sag downwards a distance of 25 mm under the weight of a steel ball. This advanced microprocessor controlled automatic tester is used to determine the softening point of bitumen using water or glycerol as heating fluid.
Standard test method for softening point of bitumen ring. Determining softening point of bitumen civil engineering. Based on the revised methods of test in is 1201 to is 1220. With the increase in ageing time, the softening point of base bitumen increased dramatically below 500 hours while. Before pav ageing, the softening points of the sbs modified bitumens were higher than that of base bitumen. An asphalt with a high flash point is more likely to have a lower hardening potential in the field. Bitumen penetration test procedure pdf download 16kp9n. Two grams of bitumen tested guarantee, does add ten milliliters suitable solvent to dissolve in the solvent of bitumen is repeated 8 cycles following after five seconds of the eighth pitch of all samples should be completely dissolved in a solvent. Softening point denotes the temperature at which the bitumen attains a particular degree of softening under the specifications of the test. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. The softening point of various bitumen grades used in paving jobs from 35 to 70 c 6 7.
List of tests for bitumen as per indian standard civil. This study was carried out to design and fabricate a cost effective and efficient softening point tester to classify bitumen into grades. Test of bitumen penetration test softening point test 8. Softening point of bitumen according to ring and ball apparatus may be defined as. Tests applied on bitumen procedure of tests on asphalt. Ring and ball test is used to determine the softening point of bitumen, asphalt and coal tar. Ductility test on bitumen measures the distance in centimeters to which it elongates before breaking. The softening point sp and penetration index pi of bitumen from parts of southwestern nigeria are important properties needed for better design and optimization of the upgrading process of nigerian bitumen. Take small amount of bitumen sample and heat it up to 75100 o c. This presentation explains about the procedure of softening point test for bitumen carried out in the highway laboratory.
Bitumen is viscous elastic material without sharply defined melting points. Temperature at which bitumen and bituminous binders attains. Softening point ring and ball is the second oldest test method applied to bitumen, after needle penetration. Softening point denotes the temperature at which the bitumen attains a particular degree of softening under the specified condition of test. Ppt types of bitumen and their test methods powerpoint.
This point is best judged by using a strong source of light and determining the point where the tip of the needle just meets its image reflected by the surface of the sample. Softening point denotes the temperature at which the bitumen attains a particular degree of softening under the specifications of test. The principle behind this test is that softening point is the temperature at which the substance attains a particular degree of softening under specified condition of the test. During conducting the experiment, there are some errors that occurred which will affect the final result. Softening point is indicative of the tendency of the material to flow at elevated temperature encountered in service.
This grade of bitumen is mainly used in the manufacture of hot mix asphalt for bases and wearing courses. Pdf softening point and penetration index of bitumen. After five seconds of the eighth pitch of all samples should be completely dissolved in a solvent otherwise we repeat the experiment in the first place. First, bitumen test, bitumen softening point tester introduction the instrument is based on the prc standard gb t 4507 determination of softening point asphalt, peoples republic of industry standard jtg e202011 road asphalt and asphalt testing procedures in t 06062011 softening point test universal france, the requirements of the design. C at which an average ball permits through a specimen of bitumen in a mould and discharges through a stature of 2. An alternative to the penetration test for checking the consistency of bitumen, is the ring and ball softening point test. Various lab tests on bitumen for pavement construction.
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