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discussion of softening point of bituminous material

Transcribed image text: Test Data Sheet Softening Point of Bitumen (ASTM D36-86) Description of Materials: Date of Testing °C Rate of Heat:_ Sample # Tested by: Test temperature: Table 1 Lab observations Ring No. Instant Temperature °C Softening Point, Average °C Discussion of Test Results uniformibod is useful in de distance of 25 can of the terny the conse ing point is one or sound ...

CONCLUSION To conclude, the final temperature of the softening point is 48.75 which match the theoretical value which is 48 to 52.The objective of this experiment was achieved. During conducting the experiment, there are some errors that occurred which will affect the final result. In order to prevent this from happening, there are methods to improve the experiment's result.

D 140 Practice for Sampling Bituminous Materials4 D 3461 Test Method for Softening Point of Asphalt and Pitch (Mettler Cup-and-Ball Method)5 E 1 Specification for ASTM Thermometers6 3. Summary of Test Method 3.1 Two horizontal disks of bitumen, cast in shouldered brass rings, are heated at a controlled rate in a liquid bath while each supports ...

Ageing of bituminous materials is believed to be one of the major causes of pavement ravelling and cracking. The mechan-ical properties of bitumen, as of all organic substances, evolve with time. It is well known that as bitumen ages its ductility and penetration index are reduced while the softening point

Roofing Asphalt – 15 to 40 mm penetrating depth. Waterproofing bitumen – up to 100 or more penetrating depth. Bitumen should be hard enough to resist the action of loads and chemicals. h. Softening Point: Higher the softening point value, lower will be the temperature susceptibility. So, bitumen with high softening value is preferred for ...

JOSÉ MIGUEL MARTÍN-MARTÍNEZ, in Adhesion Science and Engineering, 2002. 4.2.3.1 Softening point.. The resins are non-crystalline amorphous materials which soften gradually over a range of temperatures. Therefore, the softening point is controlled by the average molecular weight of the resin. The softening point is also related to the intrinsic viscosity, hardness and brittleness of resins.

Nov 05, 2016· From the laboratory work, an alternate use of crumb rubber is under study where crumb rubber is mixed with bitumen and used for preparing the mix. The mix was used to study the basic properties of bitumen like penetration value, ductility value and softening point. The crumb rubber blended bitumen is subjected to different tests as discussed above.

penetration and softening point values are obtained from the same batch of bitumen). (f) Compile and compare results with other groups. REFERENCES 1. ASTM (1998). ASTM D5-97 Standard test method for penetration of bituminous materials. 1998 Annual Book of ASTM Standards, Volume 04.03, American Society for Testing and Materials, Philadelphia ...

tyres modified bitumen. Softening points values obtained for 2%, 4%, 6%, 8% and 10% tyres content are 57.14 oC, 59.78 oC, 62.42 C, 65.06 oC, and 67.7 oC respectively; it does increases with amount of tyres content added to the bituminous materials while, a linear trend was observed for 12% to 20% tyres addition. Figure 1: Penetration Test ...

a study of some factors influencing the weathering of paving asphalts. three asphaltic materials of different weathering resistant characteristics were used to study the influence of variations in weathering conditions on selected asphalt properties. ... softening point, and ductility of the asphalt residues after various exposure periods with ...

Softening point test Softening point denotes the temperature at which the bitumen attains a particular degree of softening under the specifications of test. The test is conducted by using Ring and Ball apparatus. A brass ring containing test sample of bitumen is suspended in liquid like water or glycerin at a given temperature.

Softening point denotes the temperature at which the bitumen attains a particular degree of softening under the specifications of the test. The test is conducted by using the Ring and Ball apparatus. Float test/penetration test/ viscosity test. Normally the consistency or stiffness of bituminous material can be measured either by penetration ...

1 Transportation Engineering Lab Report SOFTENING POINT OF BITUMEN: THEORY: Ring and ball test is used to determine the softening point of bitumen, asphalt and coal tar. This test consists of two brass ring and two steel ball, using which the softening …

Dec 07, 2018· The softening point value has particular significance for materials which are to be used as thick films such as joint and crack fillers and roofing materials. high softening point ensures that they will not flow in service. For a bitumen of a given …

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. This study was carried out to design and fabricate a cost effective and efficient softening point tester to classify bitumen into grades.

Procedure to determine Softening Point Of Bitumen A) Materials of softening point below 80 o C: Advertisements. i) Assemble the apparatus with the rings, thermometer and ball guides in position. ii) Fill the beaker with boiled distilled water at a temperature 5.0 ± 0.5 o C per minute.

Jan 22, 2018· A) Materials of softening point below 80oC: i) Assemble the apparatus with the rings, thermometer and ball guides in position. ii) Fill the beaker with boiled distilled water at a temperature 5.0 ± 0.5 oC per minute. iii) With the help of a stirrer, stir the liquid and apply heat to the beaker at a temperature of 5.0 ± 0.5 oC per minute.

Oct 28, 2017· 1. This method is useful in determining the consistency of bitumen as one element in establishing the uniformity of shipments or sources of supply. 2. melting point is the temperature at which the bituminous binders have an equal viscosity (i.e. the consistency of all the grades will be same at the softening point e.g. if two samples have softening points of 30 °C and 80 °C respectively ...

The softening point value has particular significance for materials which are to be used as thick films such as joint and crack fillers and roofing materials. A high softening point ensures that they will not flow in service. For bitumen of a given penetration determined at 25ºC the higher the softening point the lower the temperature sensitivity.

softening point Bitumens are viscoelastic materials without sharply defined melting points; they gradually become softer and less viscous as the temperature rises. The softening point of bitumen can be determined through the use of a ring-and-ball apparatus immersed in distilled water (30 to 80°C) or USP glycerin (above 80 to 157°C).

D140/D140M Practice for Sampling Asphalt Materials. D3461 Test Method for Softening Point of Asphalt and Pitch (Mettler Cup-and-Ball Method) E1 Specification for ASTM Liquid-in-Glass Thermometers. E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods. E691 Practice for Conducting an Interlaboratory Study to Determine the ...

C. Softening Point Test As shown in Fig. 2, the softening point increases with increase in percentage of filler as bitumen becomes increasingly viscous. Softening Point of cement added 2% is more than other sample containing different percentages of cement. Fig. 2: Binders Softening Point values of unaged Samples D. Viscosity Test

The softening point of materials like asphalt, bitumen have no definite melting point, but when heated it gradually changes from brittle or very thick and slow-flowing materials to more mobile liquid material. The softening point of bitumen or tar is the temperature at which the substance attains particular degree of softening under specified ...

Mar 01, 2018· Flash and fire point test. A O. Ductility of bituminous material. A O. Specific gravity of bituminous materials. A O. Softening point test. A O. Asphalt penetration test.

Softening point of bitumen = (A + B)/2 = (46 + 47)/2 = 46.5 degree centigrade. Significance of Softening point test of bitumen. The softening point of bitumen used in the pavement construction varies between 35° to 70°.It indicates how susceptible the …

Softening point test of bitumen is done to determine the consistency of bitumen. This test gives an idea of the temperature at which the bitumen attain certain viscosity. Softening point is defined as the temperature at which bitumen softens beyond some arbitrary softness i.e. bitumen softens and sags down about 25mm below the weight of steel ball.

The softening point value is particular significance for material which are to be used as thick films, such as joint and crack filler and roofing materials. Research has shown that, for conventional pacing grade bitumen, the ring and ball softening point temperature is the same as that which would give a penetration of 800 d-mm.

Apr 21, 2017· Softening point is the temperature at which a steel ball falls a known distance through the bitumen when the test assembly is heated at a known rate. Usually the test consist of a (3/8) in dia. steel ball, weight 3.5 gm, which is allowed to sink through a (5/8) …

Softening point denotes the temperature at which the bitumen attains a particular degree of softening under the specifications of this test. Table2– test result of softening point of bitumen and modified bitumen (bitumen replaced by plastic) ampl eoft ni g point(0 C) (plain bitumen) Softening point(0 C) 10% bitumen replaced by plastic

3.3. Softening Point Test. The average softening point of the samples used is 54.5˚C as shown in Table 5. Temperature records obtained for the Kano region shows that the maximum temperatures are 24.77% lower than the softening point of 60/70 bitumen used. Furthermore, the increment of 1.4˚C on the sample up to 43.2˚C is still lower than the ...

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