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The penetration point of Bitumens such as asphalt is the depth in tenths of millimeters a standard weighted needle will penetrate through a given sample of asphalt at a given time and temperature.
The softening point of Bitumen such as asphalt is the temperature at which the Bitumen softens at standard conditions. Method of detrmination employs a ball and ring in which the ball falls through the ring after the softening has been reached.
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Difference between cut-back bitumen and emulsion bitumen?
cut black bitumen needs a solvent to dilute it whereas emulsion doesn't.
What is the difference between Tar and Bitumen?
Petroleum bitumen is often confused with tar. Although bitumen and coal tar are similarly black and sticky, they are distinctly different substances in origin, chemical composition and in their properties. Coal tar is produced by heating coal to extremely high temperatures and is a by-product of gas and coke production. It was widely used as the binding agent in road asphalt in the early part of the last century, but has since been replaced by refined bitumen.
Can asphalt be defined as the combination of bitumen and aggregate?
No, within the US and Poland, asphalt is synonymous with bitumen. The correct term for a mixture of bitumen and aggregates is asphalt concrete.
What is deference between cut back bitumen and bitumenemulsion?
Cutback Bitumen : Normal practice is to heat bitumen to reduce its viscosity. In some situations preference is given to use liquid binders such as cutback bitumen. In cutback bitumen suitable solvent is used to lower the viscosity of the bitumen. From the environmental point of view also cutback bitumen is preferred. The solvent from the bituminous material will evaporate and the bitumen will bind the aggregate. Cutback bitumen is used for cold weather bituminous road construction and maintenance. The distillates used for preparation of cutback bitumen are naphtha, kerosene, diesel oil, and furnace oil. There are different types of cutback bitumen like rapid curing (RC), medium curing (MC), and slow curing (SC). RC is recommended for surface dressing and patchwork. MC is recommended for premix with less quantity of fine aggregates. SC is used for premix with appreciable quantity of fine aggregates.Bitumen Emulsion : Bitumen emulsion is a liquid product in which bitumen is suspended in a finely divided condition in an aqueous medium and stabilized by suitable material. Normally cationic type emulsions are used in India. The bitumen content in the emulsion is around 60% and the remaining is water. When the emulsion is applied on the road it breaks down resulting in release of water and the mix starts to set. The time of setting depends upon the grade of bitumen. The viscosity of bituminous emulsions can be measured as per IS: 8887-1995. Three types of bituminous emulsions are available, which are Rapid setting (RS), Medium setting (MS), and Slow setting (SC). Bitumen emulsions are ideal binders for hill road construction. Where heating of bitumen or aggregates are difficult. Rapid setting emulsions are used for surface dressing work. Medium setting emulsions are preferred for premix jobs and patch repairs work. Slow setting emulsions are preferred in rainy season.
What is the difference between asphalt and concrete?
"Asphalt" the paving material is more properly called asphaltic concrete. It's gravel held together by a binder of a tarry substance extracted from crude oil known as bitumen. Bitumen is also itself sometimes called asphalt. "Concrete" is a type of building material that basically consists of rocks (gravel) combined with cement and usually sand. the crisp like the firt jsk; <:O :) >:l
What is the softening point of bitumen?
"Softening point:The temperature in degrees C at which a bitumen attains a particular degree of softness with reference to test conditions prescribed by BS EN 1427 or equivalent."Refined Bitumen Association: Glossary of Termswww.bitumenuk.com/bitumen-glossaryofterms.asp [Accessed 2009]
What are Properties of bitumen?
Bitumen is a visco elastic material. that is at room temperature it act as a semi solid. in high temperatures over 60C it acts as a Newtonian fluid or low viscosity liquid. Penetration and viscosity are the main two properties checked to categories bitumen. on the other hand flash point,fire point,solubility, ductility and softening point of the bitumen are also checked.
Difference between cut-back bitumen and emulsion bitumen?
cut black bitumen needs a solvent to dilute it whereas emulsion doesn't.
What types of products do Mustek produce?
Mustek manufactures a variety of packed bitumen products. Their bitumen products are produced at the Europoort refinery in Rotterdam, Germany. They produce 3 types of bitumen: penetration bitumen,oxidized bitumen, and hard bitumen.
What is the difference between cutback bitumen and bitumen emulsion?
Cut-back bitumen uses solvent as the mixing medium where in Emulsion uses water to dilute bitumen for the purpose of tack-coating / road works
What is straight run bitumen?
Straight run bitumen is a bitumen obtained by the fractional distillation of crude oil without undergoing further modifications. It is typically used as a binder in road construction and waterproofing applications. Straight run bitumen has higher viscosity and lower penetration compared to other types of bitumen.
What is difference asphalt and bitumen?
'asphalt' refers to a mixture of mineral aggregate and bitumen (bitumen)is the black liquid which is extracted from the crude oil....
What is the difference between bitumen and crude oil?
'asphalt' refers to a mixture of mineral aggregate and bitumen (bitumen)is the black liquid which is extracted from the crude oil....
What is the difference between oil rectified bitumen and oxidised bitumen?
Bitumen whose rhelogical properties have been modified by reaction with air at elevated temperatures. This material is referred to as blown bitumen Oxidised while Air rectified bitumens are used in paving applications as well as roofing applications for some industrial applications.For more info: http://www.roadstarbitumen.com
What are the standards for softening point for different of bitumens?
The softening point is defined as the temperature at which a bitumen sample can no longer support the weight of a 3.5-g steel ball. Although it is commonly used in Europe, it is mostly used for roofing asphalts in the U.S. Basically, two horizontal disks of bitumen, cast in shouldered brass rings (Figure 1), are heated at a controlled rate in a liquid bath while 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 (1.0 inch)
What is difference between bituminous coal and bitumen?
Bitumen is a highly viscous product of the decomposition of algae and other organisms deep underground. Bituminous coal is the solid product of the lithification of mostly plant remains by overburden pressure.
What is cut-back bitumen?
Cut-back bitumen is a type of bitumen (asphalt) that has been diluted or cut back with a volatile solvent or oil, making it easier to work with at lower temperatures. The solvent evaporates after application, leaving behind a solid bituminous material. Cut-back bitumen is commonly used in road construction and maintenance for surface treatments and prime coating.
