- Softening Point Test Precautions
- Softening Point Test In Bitumen
- Softening Point Test Report
- Softening Point Test Astm D36
The softening point is the temperature at which a material softens beyond some arbitrary softness.[1] It can be determined, for example, by the Vicat method (ASTM-D1525 or ISO 306), Heat Deflection Test (ASTM-D648) or a ring and ball method (ISO 4625 or ASTM E28-67/E28-99 or ASTM D36 or ASTM D6493 - 11). A ring and ball apparatus can also be used for the determination of softening point of bituminous materials.[2]
Softening Point Test Precautions
Procedure for Softening Point Test on Bitumen 1. Preparation of test sample. Assemble the apparatus with the rings; thermometer and ball guides in position. Fill the bath with distilled water to a height of 50mm above the upper surface of the rings. Apply heat to the bath and stir the. Qualtech Products Industry Automatic Softening Point Tester is a precision test instrument to determine the Softening Point and the Dropping Point of a wide range of samples, e.g. Wax, resin, rosin, lubricants, fats, grease and related materials. EXPERIMENT NO. 12 SOFTENING POINT OF BITUMEN (RING-AND-BALL APPARATUS). ASTM Designation: D 36-76, AASHTO Designation: T 53-89 SOFTENING POINT: Softening Point of Bitumen. The softening point is defined as the mean of the temperatures at which the bitumen disks soften and sag downwards a distance of 25 mm under the weight of 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 (1.0 inch) (AASHTO, 2000 1). Softening point sample. Standard Test Methods. AASHTO T 53 and ASTM D 36: Softening Point of Bitumen (Ring-and-Ball Apparatus). การทดสอบจุดอ่อนตัวของวัสดุบิทูเมนโดยใช้เครื่องวงแหวนเเละลูกปืน CVET R43. Nov 09, 2015 SOFTENING POINT: Softening Point of Bitumen The softening point is defined as the mean of the temperatures at which the bitumen disks soften and sag downwards a distance of 25 mm under the weight of a steel ball.
See also[edit]
Softening Point Test In Bitumen
References[edit]
Softening Point Test Report
- ^Petrie, Edward (2006). Handbook of Adhesives and Sealants. McGraw-Hill. p. 146. ISBN0-07-147916-3.
- ^'Softening Point / Ring & Ball Apparatus'. http://cooper.co.uk. Cooper Research Technology Ltd. Retrieved 16 July 2015.External link in
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Softening Point Test Astm D36
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