Peace river bitumen saturated with n 2, co, ch 4, co 2 and c 2 h 6. Nov 29, 2017 procuring test equipment the following testing equipment is needed to measure absolute viscosity of viscosity graded paving bitumen is. Apparatus required, theory, procedure, precautions, observations, reporting and recommended values of bitumen ductility is discussed in this article. Various lab tests on bitumen for pavement construction. E1 specification for astm liquidinglass thermometers. When processing 100% dilbit crudes, the heavy fraction or residue of dilbit is essentially all bitumen. Viscosity, density and gas solubility data for oil sand bitumens.
Some of the tests have evolved with the development of the industry and are empirical methods. The degrees of fluidity at the application temperature greatly influences the ability of bituminous material to spread, penetrate into voids and also coats the aggregate and hence affect the strength and characteristics of resulting paving mixes. Therefore viscosity at 5oc is a true reflection of the quality of bond that is likely to be formed with the aggregate. Introduction to viscosity and rheology of bituminous materials the resistance of a liquid in flowing is defined as the viscosity of that fluid. There are two methods of grading bitumen in terms of viscosity test. By definition, the specific gravity of bitumen, the tartoweight ratio of a certain volume of water volume at a given temperature. Bitumen binder viscosity testing apparatus iit kanpur. Standard test method for viscosity determination of asphalt. In viscosity grade, viscosity tests are conducted at 60c and 5c, which represents the temperature of road surface during summer and mixing temperature respectively. The test is conducted to see if it is in the specified range. Purchase viscosity to remove the 30day trial limitation and help support its development. Rtfot viscosity grade bitumen argrades, in which the viscosity of bitumen asphalt is measured at 60 c 140 f after the roll on thin film oven test. Discipline reaction is the much anticipated debut lp from melbourne based postpunk industrial unit bitumen.
Experience in using bitumen in engineering projects has led to the adoption of certain test procedures that are indicative of the characteristics that identify adequate performance levels. A few qualification tests like specific gravity, water content, ductility, loss on. Viscosity grading of bitumen grading of bitumen, although various standards are in place, the property whether penetration or viscosity has to be determined for the effective selection of the material for construction of roads is discussed here. Hello all, i am a junior process engineer working for a design firm that deals with companies working with the oil sands resource in alberta, canada. Objective to become familiar with the term viscosity, its influence and effects, its techniques and application in the field of engineering especially for design of the road pavements. The equipment is used for kinematic viscosity measurement. If bitumen viscosity is the only parameter controlling bitumen mobility, darcys equation predicts that bitumen mobility decreases one order of magnitude in 0. Theory in simple words, viscosity is the opposite of fluidity. Kinematic viscosity meter bathbitumen viscometer, find complete details about kinematic viscosity meter bathbitumen viscometer,viscosity meter,kinematic viscosity meter,kinematic viscosity meter bath from testing equipment supplier or manufacturerchongqing top oil purifier co. Under the action of force, the fluid reflects higher resistance when the viscosity is high. Bitumen viscosity grades test bis method specification vg10 vg20 vg30 vg40 absolute viscosity at 60c, poises 1206 part 2 min. Standard test method for kinematic viscosity of asphalts. Bitumen grading systemfrom penetration grade to viscosity. Low or high viscosity during compaction or mixing has been observed to result in lower stability values.
As per the specifications there are four grades vg10, vg20, vg30, and vg40. Density and viscosity of athabasca bitumen samples at. The test result is expressed in seconds for the flow of 60 cc. This grade of bitumen is mainly used in the manufacture of hot mix asphalt for bases and. Prediction of density and viscosity of bitumen using the. Brookfield dynamic viscosity testing applies the difference in the resistance of a rotating spindle immersed. The basic kinematic viscosity test measures the time it takes for a fixed volume of asphalt binder to flow through a capillary viscometer under. Viscosity denotes the fluid property of bituminous material and it is a measure of resistance to flow.
First, we increase the temperature of the oil bath to 60c. Pdf aging effect on the physical properties of polyurethane. E17e17m specification for industrial platinum resistance thermometers. Bitumen grading systemfrom penetration grade to viscosity grade. The following testing equipment is needed to measure absolute viscosity of viscosity graded paving bitumen is. Resistance increases as bitumen viscosity increases, while the spindles. The material retained on the filter is then dried and weighed, and used to calculate the bitumen content as a percentage of the. Viscosity or vg grade is the bitumen based on its viscosity. Used to determine the viscosity of cutback bitumen and road oil. Viscosity grade bitumen has a thermoplastic feature which causes the material to soften at high temperatures and to harden at lower temperatures. Aim determine the viscosity of bitumen by tar viscometer apparatus tar viscometer with 4mm and 10mm orifices thermostatically. A suitable bath for immersion of at least 2 vacuum capillary viscometer tubes with a digital temperature controller.
What temperature should i use to perform a bitumen. In viscosity grade viscosity test are conducted at 60 c and 5 c which represents the temperature of road surface during summer and mixing temperature respectively. That is it influences the fluid property of bitumen. Follow the instructions displayed in the setup wizard. Viscometers produced with the most recent technologies, to offer userfriendly systems and advanced features in compliance with the most important international standards. Ductility of bitumen is its property to elongate under traffic load without getting cracked in road construction works. This unique temperature viscosity relationship is important when determining the performance parameters such as the adhesion, rheology, durability and application temperatures of bitumen. The viscosity expressed in seconds is the time taken by the 50 ml bitumen 4050, 6070 and bitumen 80100 material to pass through the orifice of a cup, under standard test conditions and specified temperature. The extent of fluidity at the utilization temperature significantly impacts the capacity of bituminous material to extend, infiltrate into voids and additionally coat the total and therefore move. Bitumen inspection bitumen penetration test bitumen. Viscosity grade bitumen, bitumen vg 20, vg 30, vg 40. Jul 31, 2012 prediction of density and viscosity of bitumen using the pengrobinson posted in industrial professionals.
Viscosity test for cutback bitumen the constructor. Tar viscometer, cup, valve, receiver, thermometer etc. Bitumen binder viscosity testing apparatus the viscosity of a binder is a measure of its flow characteristics, and the performance of a bituminous mix is greatly affected by its viscosity. Your browser does not currently recognize any of the video formats available. Viscosity grade of bitumen are categorized according to viscosity degree of fluidity grading. The viscosity expressed in seconds is the time taken by the 50 ml bitumen material to pass through the orifice of a cup, under standard test conditions and specified temperature. Determination of viscosity of bitumen using tar viscometer apparatus tar viscometer cup valve receiver thermometer etc. Too viscous bitumen would result in inadequate and nonuniform coating of the aggregates. Since penetration test only measures the stiffness of bitumen in an average temperature, its results are not reliable in hot summer days. In order to grade the bitumen based on viscosity, bis revised is731992 specifications viscosity at 60c. 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. Viscosity is the property of bitumen which influences the ability of bitumen to spread, penetrate into the voids and also coat the aggregates. For instruments that offer automation, the results of a 3min integration shall be acceptable. What is the procedure for viscosity test of bitumen.
Although absolute viscosity is an improvement over the penetration test, it still only measures viscosity at one temperature and thus does not fully. Known as vg bitumen, this product is highly recommended for roads constructions and pavements in summer. If viscosity of bitumen is higher, compactive effort of bitumen reduces and heterogeneous mixture arises. Effect of bitumen viscosity and bitumenwater interfacial. Many tests are done to ensure the quality of bitumen. Rotational viscometers are used for hightemperature testing of asphalt binders and meet astm 4402 and aashto t 316 standards viscosity baths include the saybolt viscometer bath which determines the viscosity of petroleum liquids and the constant temperature viscosity bath which controls the temperature of capillary viscometers and can also be used for general laboratory applications. Penetration, softening point, ductility, rotational viscosity and storage stability test were conducted to observe the effect of adding 5, 10, 15 and 20% of pu by weight of binder into 80100. Bitumen viscosity test asphalt viscosity test procedure. Standard test method for viscosity determination of.
High viscosity dilbit crudes reduce equipment performance and require modification or. Jan 20, 2016 absolute viscosity test of bitumen reference. Test method for viscosity determination of asphalt at elevated temperatures using a rotational viscometer. In this video, we will discuss with practical for finding out the bitumen emulsion viscosity by saybolt viscometer as per is 1117 2004. Prediction of density and viscosity of bitumen using the pengrobinson posted in industrial professionals. The basic absolute viscosity test measures the time it takes for a fixed volume of asphalt binder to be drawn up through a capillary tube by means of vacuum, under closely controlled conditions of vacuum and temperature astm, 2003 1. Among the methods available for determining the density of asphalt is. Determination of absolute viscosity with the following components. Viscosity is one of the most important parameter to describe the flow behavior of the binder. D341 practice for viscosity temperature charts for liquid petroleum products. There are several ways to determine the specific gravity of asphalt on all these methods, is archimedes law. Kinematic and dynamic viscosity thermometers 82b011640 kinematic viscosity thermometer, range 58.
D92 test method for flash and fire points by cleveland open cup tester. Complete absolute viscosity testing equipment conforming to is. Viscosity grade bitumen asphalt aashto designation. It may be found in natural deposits or may be a refined product. E11 specification for woven wire test sieve cloth and test sieves. Until the 20th century, the term asphalt was also use. The higher the viscosity of the bitumen more time will be required for a quantity to flow out. Determination of absolute viscosity test equipment. Consequently it is essential that they are carried out in strict compliance with the. Viscosity of bituminous materials measurements and factors. Download viscosity now to trial it for 30days with no purchase necessary and no limitations. Test procedure for calculating viscosity from penetration txdot designation. Bitumen viscosity test viscosity denotes the fluid property of bituminous material and it is a measure of resistance to flow. Viscosity grades bitumen are categorized according to viscosity degree of fluidity grading.
Its defined as fluid property of the material as resistance to flow aim. Eies comprehensive range of bitumen testing equipments, asphalt testing instruments comprises of ductility testing machine, rolling thin film oven, bitumen penetrometer, kinematic viscosity bath, marshall stability test apparatus, automatic marshal compactor, waterbath for penetration test etc. The test result is expressed in seconds for the flow of 60 cc of the emulsion sample through. Elastic recovery 10 x 10 100 separation test the separation of modifier and bitumen during hot storage is evaluated by comparing the ring and ball softening point of the top and bottom samples taken from a conditioned, sealed tube of polymer modified bitumen requirements of pmb elastomeric thermoplastic based irc. Viscosity grading of bitumen benzene international. The tar cup is properly levelled and water in the bath is heated to the test temperature. Viscosity grade of bitumen orinoco oil corporation, s. The penetration of the asphalt is determined in accordance with tex502c, which conforms to astm d 5. Bitumen inspection bitumen penetration test ductility test specific gravity test viscosity test softening point test loss on heating test. I am trying to use a paper written by herbert loria, pedro pereiraalmao and marco satyro in order to determine the density and viscosity. The torque value is then changed using calibration factors to yield the viscosity of the bitumen. 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.
I am trying to use a paper written by herbert loria, pedro pereiraalmao and marco satyro in order to determine the density and. Viscosity of a cutback can be measured with either 4. D2397d2397m specification for cationic emulsified asphalt. Kinematic viscosity meter bathbitumen viscometer buy. Viscosity grade bitumen asphalt is a standard grade bitumen usually used as a paving grade bitumen suitable for road construction and for the production of asphalt pavements with superior properties. Very low viscosity would again result in inadequate coating as the bitumen will tend to bleed. Astm d7496 18 standard test method for viscosity of. D445 test method for kinematic viscosity of transparent and opaque liquids and calculation of dynamic viscosity d446 specifications and operating instructions for glass capillary kinematic. Both the viscosity test and the penetration test measure the consistency of an asphalt at some specified temperatures and are used to designate grades of asphalts. Prediction of density and viscosity of bitumen using the peng. Kinematic viscometers, bitumen testing equipment, controls. Consisting of a stainless steel bath, stirrer, electric heater with digital thermoregulator and cooling coil. There are many tests which are conducted to check the quality of bitumen. Saybolt furol viscosity test is used to determine viscosity of liquid bitumens.
Bitumen is very important component of many construction sites like roads, highways. Viscosity by saybolt furol viscometer purpose viscosity indicates the resistance to flow due to its internal friction. Aging effect on the physical properties of polyurethane. The viscosity of a cutback can be measured with either 4. To determine the viscosity of bitumen by tar viscometer as per is. Asphalt is also known as bitumen, is a sticky, black and highly viscous liquid or semisolid form of petroleum. This freestanding document was recorded at magnet studios in coburg, and produced by the band with the help of alexander anglias the faculty, ill globo the phantom fifth member, and realised with the guidance of peter bramley. Viscosity is a onetime purchase, with no subscriptions or reoccuring fees. Viscosity grade bitumens have a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. Grading of bitumen, although various standards are in place, the property whether penetration or viscosity has to be determined for the effective selection of the material for construction of roads is discussed here. In this experiment, we aim to determine the viscosity of bitumen. Various tests on bitumen to access its properties civil.
627 1595 1627 955 704 314 1207 898 140 1564 867 408 8 695 1454 1632 589 623 29 842 793 505 203 917 817 865 761 1414 972 1238 169 121 1597 1101 1480 641 1009 486 730 1108 28 750 448 1483 882