What is bitumen grade?

Bitumen is classified by the depth to which a standard needle will penetrate under specified test conditions. This “pen” test classification is used to indicate the hardness of bitumen, lower penetration values indicating a harder bitumen, higher values e.g. 160/220 indicate a softer grade.

What is meant by grade of bitumen?

Explanation: The penetration of Bitumen is used to measure its grade. It is reported as a penetration value of mm/10. Bitumen penetration grade 60/70 means the penetration value is in the range 60 to 70 at standard test conditions which commonly used as a Paving Grade.

What does the number 80 100 in bitumen grade mean?

Bitumen grade 80/100 meaning

Bitumen of grade 80/100 means that in the bitumen penetration test, when the needle sinks 8 to 10 mm in the bitumen, we find out that the penetration value is between 8 and 10 mm and this type of bitumen is 80/100 bitumen.

How do I choose a bitumen grade?

What is the meaning of 60 70 bitumen?

A grade of 60/70 bitumen means the penetration value is in the range 60 to 70 at standard test conditions which usually used as a Paving Grade. Bitumen 60/70 is applicable for the production of asphalt pavements with superior properties and for construction and maintenance of roads.

Viscosity Grades Of Bitumen and there suitability #VG10 #VG20 #VG30 #VG40

What is VG 10 bitumen?

VG-10 BITUMEN: VG-10 is widely used in spraying applications such as surface-dressing and paving in very cold climate in lieu of old 80/100 Penetration grade. It is also used to manufacture Bitumen Emulsion and Modified Bitumen products.

What is the meaning of 30 40 bitumen?

Bitumen penetration grade 30/40 is semi-hard penetration grade bitumen used as a paving grade bitumen which is suitable for road construction and repair. It is also used for the production of asphalt pavements with the below technical specification.

What is the difference between bitumen 60 70 and 80 100?

The Difference between Bitumen 60/70 and 80/100

The main difference between 60/70 and 80/100 is their penetration value. To decide between 60/70 vs bitumen 80/100, we should consider the fact that bitumen penetration 80/100 is softer than bitumen 60/70. For this reason, bitumen 80/100 is used at cold temperatures.

What grade is a good grade?

A - is the highest grade you can receive on an assignment, and it's between 90% and 100% B - is still a pretty good grade! This is an above-average score, between 80% and 89% C - this is a grade that rests right in the middle.

What is viscosity of bitumen?

The standard penetration value of bitumen viscosity grade VG-20 is 60 mm at 25 °C. The absolute viscosity of VG-20 bitumen is 1600 to 2400 poise at 60 °C.

What is viscosity ratio of bitumen?

Bitumen is graded by viscosity at 60°C. For the purpose of this standard, the definitions given in IS 334 and the following shall apply. 3.1 Viscosity Ratio — It is the ratio of viscosity of residue from rolling thin film oven test to unaged bitumen, both measured at 60°C.

What is VG in bitumen?

Viscosity Grade Bitumen (Asphalt) is a Bitumen grade mostly used as a Paving Grade and it's suitable for road construction and for the asphalt pavements producing with premier attributes. VG Bitumen is usually used in the production of hot mix asphalt.

What is VG 40 grade bitumen?

VG-40 is used in highly stressed areas such as intersections, near toll booths and truck parking lots instead of 30/40 penetration grade. Because of higher viscosity, stiffer Bitumen mixes can be produced to amend resistance to shoving and other problems related to higher temperature and heavy traffic loads.

What is a 80 grade?

Letter grade Percentage Grade definition A+ 90-100 Excellent A 85-89 Very good A– 80-84 Very good B+ 75-79 Good B.

What is bitumen emulsion?

Bitumen emulsions are usually two-phase systems consisting of two immiscible liquids, bitumen and water. The bitumen phase can be dispersed in the aqueous phase by mechanically shearing it in a colloid mill.

What is viscosity grading?

Viscosity grades Bitumen are categorized according to Viscosity (degree of fluidity) grading. The higher the grade, the stiffer the Bitumen. In Viscosity Grade, Viscosity tests are conducted at 60°C and 135°C, which represents the temperature of road surface during summer and mixing temperature respectively.

How many types of bitumen are there?

There are three varieties of bitumen emulsion, namely, slow setting (SS), medium setting (MS) and rapid setting (RS) depending upon the stability provided by the emulsifying agent. It can be easily applied at ambient temperature, merely mixing it with aggregates for road works starts the binding process.

How do you calculate bitumen road?

Why VG 30 bitumen is used?

VG-30 BITUMEN: VG-30 is primarily used to construct extra heavy duty Bitumen pavements that need to endure substantial traffic loads. It can be used in lieu of 60/70 Penetration grade.

What is s 35 grade bitumen?

Bitumen Penetration Grade 35/50 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 mc1 bitumen?

description: Cut back petroleum asphalt of the medium curing type for use in the construction and treatment of roads.