Various lab tests on bitumen for pavement construction. Various lab test on bitumen posted in material testing. Determining specific gravity of bitumen civil engineering portal. Improvement of modified bitumen using low density polyethylene. Show full abstract penetration and penetration index of binder were used for estimating the specific gravity of the bitumen. Just click on the names of the tests above to know the. Specific gravity tiheys specific gravity of asphalt is defined as the ratio of the mass of a given volume of asphalt to that of an equal volume of water at 25c or 15. Bitumen vg 3040 60 70 asphalt also known as bitumen, is a sticky, black and highly viscous liquid or semisolid that is present in most crude petroleums and in some natural deposits, it is a substance classed as a pitch. 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 temperature. For good pavement construction, the range of specific gravity of bitumen should be 0. How to test specific gravity of bitumen atdm co ltd. Determination of the specific gravity of micro quantities of bituminous. The standard specific gravity test is carried out at a temperature of 250c.
Aim to find the specific gravity of bitumen sample music credits. Bitumen is a nonfuel products and has many classes 80100 grade 50 70 grade 6070 grade 85100 grade. Determination of the specific gravity of micro quantities of. Specific gravity test results for asphalts are reported by the refinery or department chemists. There are many tests which are conducted to check the quality of bitumen. You already know that specific gravity test is an important test in your all civil engineering lab. Astm c128 test for specific gravity and absorption of fine aggregate. Nov 29, 2017 aim to find the specific gravity of bitumen sample music credits. Experimental study in the present work experimental study was carried out using polymer modified bitumen, pmb70 and conventional bitumen of 6070. 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. Oxidized bitumen r 1020,r8525,r8540,r 11515,emulsion bitumen astm d244 suppliers in singapore. 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. Astm d6857 d6857m18, standard test method for maximum specific gravity and density of asphalt mixtures using automatic vacuum sealing method, astm international, west conshohocken, pa, 2018, back to top. Lecture 5b grading of bituminous materials quality control.
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. 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. The trainer must ensure that the learning activities for the trainee include the following. Many tests are done to ensure the quality of bitumen. 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. Standard test method for specific gravity, api gravity, or. Astm d2041 specific gravity meter for bitumen mixtures power of shaking machine. 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.
This test method determines the theoretical maximum specific gravity commonly referred to as rice gravity of a bituminous mixture. D 7076, specific gravity of bitumen, specific gravity. Specific gravity of semi solid bituminous materials aashto t228. The aggregates, mineral fillers, bitumen asphalt cement, tar cement, or emulsified asphalt as appropriateand bituminous pavi products shall d33515 sampled, and undergo sieve analysis and other forms of test methods as appropriate asym extracting bitumen content, specific gravity, plasticity index, astm d x astm d particles, recovery of. Standard test method for maximum specific gravity and density. By definition, the specific gravity of bitumen, the tartoweight ratio of a certain volume of water volume at a given temperature.
Exp 9 specific gravity of bitumen civil engineers pk. 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. As a result, ann get 84% of r2 between obtained and estimated values. Astm d70 97 standard test method for specific gravity. Procedure record all information on sfn 9987 or sfn 2455. Bitumen is very important component of many construction sites like roads, highways. Specific gravity is defined as the ratio of the mass of a given volume of the bituminous material to the mass of an equal volume of water, the. Jan 22, 2020 the aggregates, mineral fillers, bitumen asphalt cement, tar cement, or emulsified asphalt as appropriateand bituminous pavi products shall d33515 sampled, and undergo sieve analysis and other forms of test methods as appropriate asym extracting bitumen content, specific gravity, plasticity index, astm d x astm d particles, recovery of. Products shall be sampled, and undergo sieve analysis and other forms of test methods as appropriate for astm d bitumen content, specific gravity, plasticity index, percentage of coated particles, recovery of extracted asphalt, penetration astm d. Specific gravity of bitumendefinition, test and procedure. It is the ratio of mass of a given volume of bitumen to the mass of an equal volume. Assessment of specific gravity of a specified sample of bitumen apparatus. Fm 5472 c1 change 1 headquarters department of the army washington, dc, 29 december 2000 materials testing 1. Specific gravity test in paving jobs, to classify a binder, density property is of great use.
If bitumen contains a mineral impurities the specific gravity will be higher, this makes it possible for a quantitative. Test specific gravity of bitumen 4050 6070 and 80100. 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. What is the specific gravity of bitumen various petroleum products with specific gravity different pitch. Performance tests on bitumen and bituminous mixes vincenzo buccino pietro ferrari three levels of interpretation may be identified in this article. July 21, 2014 bitumen, materials, tests on bitumen 1 comment. This lab is performed to determine the specific gravity of soil by using a pycnometer. This test is done to determine the specific gravity of semisolid bitumen road tars, creosote and anthracene oil as per is. Pdf estimation of specific gravity with penetration and. 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. Among the methods available for determining the density of asphalt is. Each tons of asphalt needed 70kg bitumen and the rest is aggregates. The primary aim of this test is, you can simply convert material weight to volume an vice versa. Determination of the specific gravity of micro quantities.
Specific gravity at 25 oc penetration at 25 0 c, 100g, 5s softening point ductility at 25 oc. Astm d675202, d685703 an innovative product for determination of bulk specific gravity, apparent specific gravity and absorption of fine and coarse aggregate in less than 15 minutes. 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. 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. The primary use of asphalt is in road construction, where it is used as the glue or binder mixed with. There are several ways to determine the specific gravity of asphalt on all these methods, is archimedes law.
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. These specific gravities may be converted to api values by use of the following formula. Specific gravity is defined as the ratio of the mass of a given volume of the bituminous material to the mass of an equal volume of water, the temperature of both being specified as 27 0c. Specific gravity is also used in identification of the source of bitumen binder. Specific gravity being a fundamental property of a bitumen binders is frequently used in classifying binders for use in paving jobs. The american petroleum institute gravity, or api gravity, is a measure of how heavy or light a petroleum liquid is compared to water. To determine the specific gravity of semisolid bitumen road tars, creosote and anthracene oil as per is. Note 1the quality of the results produced by this standard are dependent on the competence of the dd2041 performing the procedure and the capability, calibration, and maintenance of the equipment used. To get data sheet of bitumen 6070 and more details on packing and delivery,please visit. Bitumen specific gravity test asphalt specific gravity. The specific gravity of pure bitumen ranges from 0.
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. It has been shown that the performance of polymer modified bitumen with polyethylene is better than conventional 80100 grade bitumen and binder modified with crumb rubber. Standard test method for theoretical maximum speci. Table 7 of astm d1250, a portion of which is reproduced herein table 2, shows the factors to be used in calculating the volume of asphalt material at 60of.
Experiment 4 specific gravity determination purpose. 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. Specific gravity is the ratio of the mass of unit volume of soil at a stated temperature to the mass of the same volume of gasfree distilled water at a stated temperature. Illinois test procedures for other materials may be included. This test can also be used to determine the specific gravity of road tars, creosote and anthracene oils as per is. 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. Aashto t228 and astm d70 specific gravity of bituminous. Pdf improvement of modified bitumen using low density. Specific gravity of bitumendefinition, test and procedure steps for. Specific gravity test for bitumen learning technology. This test is done to determine the specific gravity of semi solid bitumen road tars, creosote and anthracene oil as per is. Referenced documents purchase separately the documents listed below are referenced within the subject standard but are not provided as part of the standard.
Aashto t164 test for quantitative extraction of bitumen aashto t195 test for coated particles for bituminous mixtures. Determining specific gravity of bitumen civil engineering. After that, the sample is chilled for 30 minutes in air and then once again. This grade of bitumen is mainly used in the spraying and chip. A number in parentheses indicates the year of last reapproval. Performance tests on bitumen and bituminous mixes vincenzo buccino. 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 point test 16 determination of ductility of bitumen 17 determination of viscosity 18 determination of bitumen by centrifuge extractor 19. In most cases bitumen is weighed, but when used with aggregates, the bitumen is converted to volume using density values. Test specimen shall be a representative sample based on the following table. The density of bitumen is greatly influenced by its chemical composition. Jan 22, 2018 specific gravity test of bitumen 22 jan 2018 10 sep 2018 aim.
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