What is penetration test of asphalt?
Penetration test of Bitumen determines the hardness or softness of bitumen by measuring the depth in millimeter to which a standard loaded needle will penetrate vertically in five seconds while the temperature of the bitumen sample is maintained at 25 0C.
How is penetration value of bitumen calculated?
The penetration test of bitumen measures the hardness or softness of bitumen by measuring the depth of penetration of a standard loaded needle in five seconds while maintaining the bitumen sample temperature at 25 °C. The more viscous the bitumen, the less distance needle is able to penetrate.
Why penetration test is asphalt important?
Importance of Penetration Testing The penetration test is used as a measure of consistency. Higher values of penetration indicate softer consistency. The test is widely used all over the world for classifying bituminous materials into different grades.
What is penetration index of bitumen?
The penetration index (PI) indicates temperature susceptibility of bitumen. Typically, PI values are ranging from around -3 (high temperature susceptible bitumen) to around +7 for highly blown low temperature susceptible bitumen.
Is 1203 a bitumen penetration test?
IS: 1203 – 1978 — 2.1 Penetration The penetration of a bituminous material is the distance in tenths of a millimetre that a standard needle will penetrate vertically into a sample of the material under standard conditions of temperature, load and time. *Glossary of terms relating to bitumen and tar (revised).
What is the unit of penetration?
Either uniform or localized attack can be expressed as depth of penetration. The favorite penetration unit has been mpy (mils per year, a mil being 0.001 inch), whereas the metric unit is mm/year. If pitting is present, then the penetration in mm/year usually refers to the deepest pit observed.
What is penetration testing used for?
Typically, penetration tests are used to identify the level of technical risk emanating from software and hardware vulnerabilities.
What is the temperature for bitumen penetration test?
The bitumen is softened to a pouring consistency, stirred thoroughly and poured into containers at a depth at least 15 mm in excess of the expected penetration. The test should be conducted at a specified temperature of 25°C.
What are the 5 stages of penetration testing?
The Five Phases of Penetration Testing
- Reconnaissance. The first phase of penetration testing is reconnaissance.
- Scanning. Once all the relevant data has been gathered in the reconnaissance phase, it’s time to move on to scanning.
- Vulnerability Assessment.
What is penetration index?
The penetration index represents a quantitative measure. of the response of bitumen to variation in temperature.
How do you calculate penetration?
The penetration rate is easy to calculate if you know your target market size. To calculate the penetration rate, divide the number of customers you have by the size of the target market and then multiply the result by 100.
How do you measure viscosity of asphalt?
To determine the industrial viscosity of bitumen, road tar, and cutback bitumens. The industrial viscosity of bitumen is measured by determining the time taken by 50 cm3 volume of material to flow from a cup through a specified orifice in standard conditions of temperature and a specified temperature.