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FACULTY OF CIVIL & ENVIRONMENTAL ENGINEERING DEPT.OF GEOTECHNICAL AND TRANSPORTATION ENGINEERING
REPORT SUBJECT CODE
BFC 32501
TEST CODE & TITLE
SOFTENING POINT OF BITUMEN
COURSE CODE TESTING DATE STUDENT NAME GROUP
3 BFF
25 APRIL 2012 3 MOHD RAZIF BIN ROSLAN MOHD SAIFULIZHAM BIN JAMAL
GROUP MEMBER NAMES
HANIM BINTI ZAKARIA IZAIDAH BINTI ADNAN
JEE SYE ENG LECTURER/ INSTRUCTOR/ TUTOR NAME
EN KHAIDIR @ EN.AHMAD HAKIMI
REPORT RECEIVED DATE
2 MEY 2012
MARKS
ATTENDANCE/ DISCIPLINE & INVOLVEMENT
/10%
INTRODUCTION
/5%
RESULTS
/15%
DATA ANALYSIS
/15%
DISCUSSION
/25%
CONCLUSION
/5%
REFERENCES
/5%
TOTAL
/80%
EXAMINER COMMENT
RECEIVED STAMP
STUDENT CODE OF ETHIC (SCE) DEPARTMENT OF GEOTECHNICAL AND TRANSPORTATION ENGINEERING FACULTY OF CIVIL & ENVIRONMENTAL ENGINEERING UTHM I, hereby confess that I have prepared this report on my own effort. I also admit not to receive or give any help during the preparation of this report and pledge that everything mentioned in the report is true.
___________________________ Student Signature
Name : JEE SYE ENG Matric No. : CF100340 Date : 2 / 5 / 2012
STUDENT CODE OF ETHIC (SCE) DEPARTMENT OF GEOTECHNICAL AND TRANSPORTATION ENGINEERING FACULTY OF CIVIL & ENVIRONMENTAL ENGINEERING UTHM I, hereby confess that I have prepared this report on my own effort. I also admit not to receive or give any help during the preparation of this report and pledge that everything mentioned in the report is true.
___________________________ Student Signature
Name : MOHD RAZIF BIN ROSLAN Matric No. : CF100514 Date : 2 / 5 / 2012
STUDENT CODE OF ETHIC (SCE) DEPARTMENT OF GEOTECHNICAL AND TRANSPORTATION ENGINEERING FACULTY OF CIVIL & ENVIRONMENTAL ENGINEERING UTHM I, hereby confess that I have prepared this report on my own effort. I also admit not to receive or give any help during the preparation of this report and pledge that everything mentioned in the report is true.
___________________________ Student Signature NAME : MOHD SAIFULIZHAM BIN JAMAL MATRIC NO. : CF100511 DATE : 2 / 5 / 2012
STUDENT CODE OF ETHIC (SCE) DEPARTMENT OF GEOTECHNICAL AND TRANSPORTATION ENGINEERING FACULTY OF CIVIL & ENVIRONMENTAL ENGINEERING UTHM I, hereby confess that I have prepared this report on my own effort. I also admit not to receive or give any help during the preparation of this report and pledge that everything mentioned in the report is true.
___________________________ Student Signature
NAME : HANIM BINTI ZAKARIA MATRIC NO. : CF100239 DATE : 2 / 5 / 2012
STUDENT CODE OF ETHIC (SCE) DEPARTMENT OF GEOTECHNICAL AND TRANSPORTATION ENGINEERING FACULTY OF CIVIL & ENVIRONMENTAL ENGINEERING UTHM I, hereby confess that I have prepared this report on my own effort. I also admit not to receive or give any help during the preparation of this report and pledge that everything mentioned in the report is true.
___________________________ Student Signature
NAME : IZAIDAH BINTI ADNAN MATRIC NO. : CF100299 DATE : 2 / 5 / 2012
1.0 OBJECTIVE To determine the softening point of bitumen within the range 30 to 157 ºC by means of the Ring-and-Ball apparatus.
2.0
BACKGROUND
Unlike some substances (e.g. water which changes from solid to liquid at 0 º C bituminous materials do not have a definite melting point. Instead, as the temperature rises, these materials slowly change from brittle or very thick and slow-flowing materials to softer and less viscous liquids. For this reason, the determination of 'softening point' must be made by a fixed, arbitrary and closely defined method if results are to be comparable. Being very simple in concept and equipment, the Ring-and-Ball Test has remained a valuable consistency test for control in refining operations, particularly in the production of air-blown bitumens. It is also an indirect measure of viscosity or, rather, the temperature at which a given viscosity is evident. 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 a bitumen of a given penetration (determined at 25 º C), the higher the softening point the lower the temperature sensitivity.
Research has shown that, for conventional paving grade bitumens, the Ring-and-Ball softening point temperature is the same as that which would give a penetration of 800 dmm. This, together with the penetration at 25 º C, can be used to compute the Penetration Index.
3.0
SUMMARY OF TEST METHOD (ASTM 1988)
Two horizontal disks of bitumens, cast in shouldered brass ring are heated at a controlled rate in a liquid bath each supports a steel ball. 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.
4.0 EQUIPMENT
Ball bearings
Rings
Thermometer
Beaker
5.0 PROCEDURE a. Specimen are prepared exactly as specified (ASTM D36-95) in precisely dimensioned brass rings and maintained at a temperature of not less than 100C below the expected softening point for at least 30 minutes before the test. b. The rings and assembly and two ball bearings are placed in a liquid bath filled to a depth of 105 ± 3 mm and the whole maintained at a temperature of 5 ± 1 oC for 15 minutes. [Freshly boiled distilled water is used for bitumen with a softening point of 80 oC or below and glycerin is used for softening point greater.
6.0 RESULTS Rigid adherence to the prescribed preparation of specimens and heating is absolutely essential for reproducibility of the result. The mean temperature of the two specimens(which shall not differ by more than 1ºC)is recorded as the softening point.This temperature is to be used in conjunction with the penetration value to obtained the Penentration Index (PI).
Apparatus for Bitumen Softening Point Test (Millard,1993)
