Differences Between Bitumen Penetration Test and Ductility Test
The ductility test and the penetration test are two different tests conducted to evaluate different properties of bitumen. While both tests provide important information about the characteristics of bitumen, they assess different aspects of its behavior. The ductility test measures the ability of bitumen to stretch or elongate without breaking.
Different Types of Asphalt Binders - Bitumen Grades
In road construction and asphalting the streets, bitumen is mainly used as a binder in the road layers. In road construction, penetration grade bitumen and viscosity grade bitumen are the most commonly used grades; however, other types of bitumen can also be used. According to the "different types of bitumen used for road construction" article by Infinity Galaxy, there are various grades of bitumen applied in road construction.
Tests Applied on Bitumen in Roads for Quality Construction
Experience in using bitumen in engineering projects has led to the adoption of certain test procedures that are indicative of the characteristics that identify adequate performance levels. Some of the tests have evolved with the development of the industry and are empirical methods. Consequently it is essential that they are carried out in strict compliance with the
Lab Report of Los Angeles Abrasion Test on a Given Sample
The Los Angeles test is a measure of degradation of mineral aggregates of standard gradings resulting from a combination of actions including abrasion or attrition, impact, and grinding in a rotating steel drum containing a specified number of steel spheres. The Los Angeles (L.A.) abrasion test is a common test method used to indicate aggregate toughness and abrasion
To Perform Penetration Test on Bitumen
In this test we examine the consistency of a sample of bitumen by determining the distance in tenths of a millimetre that a standard needle vertically penetrates the bitumen specimen under known conditions of loading, time and temperature. This is the most widely used method of measuring the consistency of a bituminous material at a given temperature. It is a means of
To Determine the Softening Point of Bitumen
Bitumen is viscous elastic material without sharply defined melting points. They gradually become softer and less viscous as the temperature rises. This is the reason why the softening point of bitumen is determined. Softening point is not a melting point, bituminous material do not melt but instead gradually change from semi solids to liquids on application to heating. Softening point is indicative of the tendency of
To Perform Ductility Test on Bitumen
Ductility is the property of bitumen that permits it to undergo great deformation or elongation. Ductility is deļ¬ned as the distance in cm, to which a standard sample or briquette of the material will be elongated without breaking. Dimension of the briquette thus formed is exactly 1 cm square. The bitumen sample is heated and poured in the molds assembly placed on a plate.
Types of Bitumen and Importance of Bituminous Materials
Bitumen is an essential component of any pavement and is used widely throughout the world. It can be termed as the building block of the pavements without which all the pavement materials would behave independently and thus will be deemed useless. Almost ninety percent of bitumen is used in road construction. It is usually available in dark colors ranging from brown
Properties of Bitumen and Bituminous Materials
Adhesion: Binds together all the components without bringing about any positive or negative changes in their properties. Bitumen has the ability to adhere to a solid surface in a fluid state depending on the nature of the surface. The presence of water on the surface will prevent adhesion. Resistance to Water: Bitumen is insoluble in water and can serve as an
Chemical and Physical Composition of Bitumen
Coal tar is a brown or dark black liquid of high viscosity, which smells of naphthalene and aromatic hydrocarbons. Being flammable, coal tar is sometime used for heating or to fire boilers. It can be used in coal tar soap, and is used in medicated shampoo to kill and repel head lice, and as a treatment for dandruff. Depending upon its source of origin, TAR is classified as:
Applications of Bitumen in Civil Engineering
The term bituminous materials is generally used to denote substances in which bitumen is present or from which it can be derived. Bitumen is defined as an amorphous, black or dark-colored, (solid, semi-solid, or viscous) cementitious substance, composed principally of high molecular weight hydrocarbons, and soluble in carbon disulfide. This article presents the
