Table of Contents
- 1 What are the application of ring and ball test results?
- 2 Which apparatus is used for softening point of the bitumen?
- 3 What is the difference between softening and melting?
- 4 What is the purpose of ductility test?
- 5 What is the ring and ball test apparatus used for?
- 6 What kind of water does a ring and ball unit use?
What are the application of ring and ball test results?
The test results are used to determine the consistency of bitumen and bituminous binders at elevated service temperatures under defined conditions of heating. The test is usually applied to bituminous binders with softening points ring and ball between 28 °C and 150 °C.
Which apparatus is used for softening point of the bitumen?
ring-and-ball apparatus
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).
What is the difference between softening and melting?
The melting point is the temperature where all the crystallinity in the bags and film is destroyed. The softening point describes a temperature where the bag will begin to experience noticeable changes in physical properties.
How do you calculate bitumen grade?
The penetration is measured in mm and it indicates the relative hardness of the bitumen. Higher the penetration, softer is the bitumen. A penetration of 0.6 to 0.7 mm indicates 60/70 penetration grade bitumen.
What do you mean by 80 100 of bitumen?
Bitumen Penetration Grade 80/100 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. This grade of Bitumen is mainly used in the manufacture of hot mix asphalt for bases and wearing courses.
What is the purpose of ductility test?
Ductility Test Apparatus conducts ductility tests of bituminous materials to measure the elongation of a binder specimen before failure. The ends of a molded specimen are pulled apart in a liquid-filled trough at specified speed and temperature.
What is the ring and ball test apparatus used for?
Please try again later. The Ring and Ball Test Apparatus is used for determining the softening point of bituminous materials by ring and ball method. • Brass Rings, 2 pcs.
What kind of water does a ring and ball unit use?
Unit provides the ability to test with boiled distilled water for softening points from 30 to 80°C and 80° up to 150°C using glycerol. Export data to a PC via USB flash drive or SD card with the ability to edit the data easily with Excel.
How many balls are in a ball softening apparatus?
Consists of 800mL beaker, 2 standard balls, shouldered rings, ball centring guides, ring holder, bottom plate and beaker cover with support rods. Order thermometer and heater separately. Specifications
How big are brass rings and brass balls?
Steel balls – two numbers each of 9.5 mm dia. And weighting 3.5 ± 0.05 g. Brass rings – two numbers of the ring each having depth of 6.4 mm. The inside diameter at the bottom is 15.9 mm and the top is 17.5 mm.