The specific gravity of pure bitumen ranges from 0. Standard test method for softening point of bitumen ringandball apparatus1 this standard is issued under the. This test is done to determine the specific gravity of semi solid bitumen road tars, creosote and anthracene oil as per is. C670 practice for preparing precision and bias statements for test methods for construction materials. The methods are essentially the same, except for the required time in which a sample of aggregate is submersed in water to essentially fill the. There are a number of tests to assess the properties of bituminous materials. By definition, the specific gravity of bitumen, the tartoweight ratio of a certain volume of water volume at a given temperature. In viscosity grade viscosity test are conducted at 60 c and 5 c which represents the temperature of road surface during summer and.
Bitumen specific gravity test the specific gravity of bitumen defined as the ratio of mass of given volume of bitumen of known content to the mass of equal volume of water at 270c. What is the specific gravity of bitumen various petroleum products with specific gravity different pitch. D2318 test method for quinolineinsoluble qi content of tar and pitch. This is obtained by blowing air into hot bitumen at high temperatures normally beyond 180 0c. Generally higher penetration bitumen is preferred for use in cold climate and smaller penetration bitumen is used in hot climate areas. The standard test methods used for the determination of specific gravity of coarse aggregate are described in aashto t 85 and astm c127. Specific gravity test the specific gravity of bitumen is defined as the ratio of mass of given volume of bitumen of known content to the mass of equal volume of water at 27 0 c.
Can grade a bitumen when provided a list of parameters can choose the bitumen for the particular application knows how the grading systems were developed and knows the direction towards which the future development is going. Determination of the specific gravity of micro quantities of bituminous substances by rodney edgerton cox a dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of doctor of philosophy major subject. Performance tests on bitumen and bituminous mixes vincenzo buccino pietro ferrari three levels of interpretation may be identified in this article. Determination of the specific gravity of micro quantities.
Standard test method for penetration of bituminous materials1 this standard is issued under the. Industrial grade bitumen is also known as blown bitumen. Test specific gravity of bitumen 4050 6070 and 80100. Bitumen penetration grade 80100 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. It is filled with fresh distilled water, stopper placed. A number in parentheses indicates the year of last reapproval.
The test is based on the principle that specific gravity is the ratio of the mass of a given volume of bitumen to the mass of an equal volume of water, both taken at a specified temperature. No date name of the experiment staff signature remarks 12 flash and fire point test determine the test on specific gravity 14 determination of penetration value 15 determination of softening. This test is done to determine the specific gravity. Knows which parameters to test from bitumen in order. The specific gravity can be measured using either pycnometer or preparing a cube specimen of bitumen in semi solid or solid state. The trainer must ensure that the learning activities for the trainee include the following.
Relative density, or specific gravity, is the ratio of the density mass of a unit volume of a substance to the density of a given reference material. Standard test method for softening point of bitumen ring. The principle is that it is the ratio of mass of a given volume of bitumen to the mass of an equal volume of water, both taken at a recordedspecified temperature. This grade of bitumen is mainly used in the manufacture of hot mix asphalt for bases and wearing courses. D 7076, specific gravity of bitumen, specific gravity. Standard test method for ductility of bituminous materials. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to. Greater value of penetration indicates softer consistency. A wide variety of specific gravity of bitumen options are available to you, such as free samples, paid samples. The new viscosity grading system conforms to is 732006 paving bitumenspecification third revision. Viscosity grade bitumen is categorized according to viscosity.
The testing apparatus depicted in figure 3 is a commercially available device produced by gardco inc. Anumber in parentheses indicates the year of last reapproval. The specific gravity of bitumen is defined as the ratio of mass of given volume of bitumen of. Sfn 2199 fine aggregate specific gravity worksheet sfn 9987 aggregate sample worksheet. How to test specific gravity of bitumen atdm co ltd. Bitumen is a nonfuel products and has many classes 80100 grade 50 70 grade 6070 grade 85100 grade. The f4 piston depicted in the figure has a diameter of 73.
Specific gravity is the good indicator of quality of binder. Specific gravity of bitumendefinition, test and procedure steps for. Other devices meeting the requirements of this procedure can be used. Tests on bitumen penetration test measures the hardness or softness of bitumen specific gravity test specific gravity of bitumen is defined as the ratio of mass of given volume of bitumen softening point test softening point. The advantage of using the viscosity test as compared with the penetration test is that the viscosity test measures a fundamental physical property rather than an empirical value. Weight of bitumen is sometimes converted into volumes for asphalt concrete mix design calculations for which specific gravity details are important. Standard test method for ductility of bituminous materials1 this standard is issued under the. Specific gravity of bitumen is the ration of mass of given volume of bitumen to the mass of equal volume of water at specified temperature. Materials that have a lower specific gravity are lower boiling point thus one of the first applications of this parameter has been using it for the distillation of crude oil. The first, which is the most practical, consists in identifying the limits imposed on the requisites of certain tests, performed on bitumen and its mix, as a function of the minimum and maximum. Various lab test on bitumen posted in material testing.
It is filled with fresh distilled water, stopper placed and the same is kept in water container for at least half an hour at temperature 27 0c. The specific gravity of bitumen 4050, 6070 and bitumen 8000 is defined as the ratio of mass of given volume of bitumen 4050, 6070 and bitumen 8000 of known content to the mass of equal volume of water at 270c. For good pavement construction, the range of specific gravity of bitumen should be 0. Determining specific gravity of bitumen civil engineering portal. Bitumen specific gravity test asphalt specific gravity. Specific gravity of bitumen wholesale, specific gravity. The specific gravity bottle is cleaned, dried and weighed along with the stopper. This test can also be used to determine the specific gravity of road tars, creosote and anthracene oils as per is. Specific gravity test for bitumen learning technology. What is the specific gravity of bitumen and what are the. Bitumen 6070 is a bitumen kind, which is provided in oxidation of vacuum bottom procedure the bitumen production feedstock that derives from distillation tower residue in vacuum oil refineries at bitumen production unit in a manner that its penetration point kind of test to indicate the hardness of bitumen is between 60 to 70. To perform penetration test on bitumen civil engineering. It is often required to know the specific gravity of straight run and cutback bitumen for purposes of calculating rates of spread, asphaltic concrete mix properties etc. Bitumen 80100 is used as a binder of mineral aggregates in asphalt concrete and hot laid plant mix for highways, airports, parking areas, driveways and curbs.
Assessment of specific gravity of a specified sample of bitumen apparatus. The following tests are usually conducted to evaluate different properties of bituminous materials. Astm d70 97 standard test method for specific gravity. Penetration test is used to measure the consistency of bitumen, so that they can be classified into standard grades. The specific gravity of bitumen is also a must needed test you need to do while your pavement construction.
There are several ways to determine the specific gravity of asphalt on all these methods, is archimedes law. Specific gravity specific gravity of bitumen the specific gravity of semisolid bituminous material, asphalt cements, and soft tar pitches shall be expressed as the ratio of the mass of a given volume of the material at 25 c to that of an equal volume of water at the same. This test is done to determine the specific gravity of semisolid bitumen road tars, creosote and anthracene. Specific gravity of bitumendefinition, test and procedure. Determining asphalt binder bond strength by means of the. About 56% of these are testing equipment, 1% are densitometers. Bitumen 3040 is used in specialized applications like airport runways and also in very heavy traffic volume roads in coastal cities in the country.
Referenced documents purchase separately the documents listed below are referenced within the subject standard but are not provided as part of the standard astm standards. How to test water content of bitumen tesing of water content of bitumen 6070,4050 and bitumen 80100 it is desirable that the bitumen 4050, 6070 and bitumen 80100 contains minimum water content to prevent foaming of the bitumen 4050, 6070 and bitumen 80100 when it is heated above the boiling point of water. What are the tests required for determining the strength. Determining specific gravity of bitumen civil engineering. Referenced documents purchase separately the documents listed below are referenced within the subject standard but are not provided as part of the standard. It is a semi solid hydrocarbon product produced by removing the lighter fractions such as liquid petroleum gas, petrol and diesel from heavy crude oil during the refining process. Exp 9 specific gravity of bitumen civil engineers pk. Lecture 5b grading of bituminous materials quality control. Just click on the names of the tests above to know the. Can describe the properties of the bitumen using the specifications. Specific gravity of bituminous material is known as the proportion of mass of specified capacity of substance to the equivalent volume of water, temperature of. Standard test method for penetration of bituminous materials1. Bitumen penetration grade 6070 bitumen penetration grade 6070 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. Tests applied on bitumen procedure of tests on asphalt.
All test procedures used within and referred to in this section can be found under testing procedures of this manual. Pdf testing of bitumenaggregate affinity by various methods. The bottle is then removed and cleaned from outside. Definition softening point is the temperature at which the substance attains a particular degree of softening under specified conditions of test. Astm d2042 15 standard test method for solubility of. The specific gravity of semisolid bituminous material, asphalt cements, and soft tar pitches shall be expressed as the ratio of the mass of a given volume of the material at 25 c to that of an equal volume of water at the same temperature.
In the standard test for bitumen content astm d4, a small sample of about 2 g of the asphalt is dissolved in 100 ml of carbon disulfide and the solution is filtered through a filtering mat in a filtering crucible. Among the methods available for determining the density of asphalt is. Specific gravity of bituminous material is known as the proportion of mass of specified capacity of substance to the equivalent volume of water. If bitumen contains a mineral impurities the specific gravity will be higher, this makes it possible for a quantitative extraction of mineral impurity in binders. Using this test you can determine the specific gravity of semisolid bitumen, road tar and anthracite oil. What are the tests required for determining the strength of pure bitumen. Determination of the specific gravity of micro quantities of bituminous. Aim to find the specific gravity of bitumen sample music credits. Various lab tests on bitumen for pavement construction.
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