Evaluating Oxide Shell Performance of Hot-Rolled Steel as an Additive in Bitumen
Authors
Abstract:
Nowadays, in addition to materials and components of asphalt mixtures that are bitumen, aggregates and mineral fillers, other materials known as additives or modifiers are also used. These compounds include wide range of organic, inorganic, industrial, and natural materials used in order to reduce deficiencies, to improve the physical properties and to modify some mechanical properties of bitumen and asphalt mixtures. In the present study, the effect of the oxide shell of hot rolled steel with different percentages of bitumen 70- 60 was investigated by tests of penetration, softening point, kinematic viscosity, and elasticity property. RTFO was performed to determine the viscosity and penetration degree after aging modeling. According to the percentages of additives used in the test (3%, 4% and 5%), results indicate that use of oxide shell increases viscosity, reduces the penetration degree, reduces gum plasticity of bitumen, increases softening point, and improves aging properties in bitumen samples prepared by one of wastes produced by steel factories.
similar resources
Stabilisation of ferrite in hot rolled d-TRIP steel
A steel has recently been designed to benefit from the deformation induced transformation of retained austenite present in association with bainitic ferrite. It has as its major microstructural component, dendrites of d-ferrite introduced during solidification. The d-ferrite replaces the allotriomorphic ferrite present in conventional alloys of this kind. The authors examine here the stability ...
full textStatistical discriminator of surface defects on hot rolled steel
A statistical approach to defect detection and discrimination has been applied to the case of hot rolled steel. The probability distribution of pixel intensities has been estimated from a small set of images without defects, and this distribution is used to select pixels with unlikely values as candidates for defects. Discrimination of true defects from random noise pixels is achieved by a dyna...
full textThe Effects of Hot Tear Segregations on the Rolled Product Quality of Continuously Cast Steel
The main objective of this project was to investigate the behavior and the damaging effects of hot tear segregations in the continuously cast steel blooms on the final product quality. To achieve this aim, plant data from three different types of steels were used. Investigations using the scanning electron microscope (SEM) equipped with energy dispersive x-ray spectroscopy (EDS) probe and metal...
full textThe Effect on Rolling Mill of Waviness in Hot Rolled Steel
The edge waviness in hot rolled steel is a common defect. Variables that affect such defect include raw material and machine. These variables are necessary to consider to understand such defect. This research studied the defect of edge waviness for SS 400 of metal sheet manufacture. Defect of metal sheets were divided into two groups. The specimens were investigated on chemical composition and ...
full textMEBO and hot bitumen burns.
Moist exposed burn ointment (MEBO) is a fairly recent addition to the English burn literature for the local treatment of the burn wound. MEBO espouses the concept of wound healing in a moist environment by avoiding desiccation of the fragile burned areas. Though MEBO is as effective as conventional management, it is not the panacea for all burn wounds [1]. While using MEBO in the treatment of p...
full textIn-Line Inspection of Hot-Rolled Steel Billets by Heat Flux Thermography
In this work heat flux thermography algorithms are proposed to suppress false indications that appear when testing steel billets with inductive thermography. Not only temperature amplitudes are used for evaluation but also the time dependancy of the temperature profile, different types of cooling rates and signal shape parameters. These new algorithms were tested successfully in a rolling mill....
full textMy Resources
Journal title
volume 14 issue 3
pages 229- 239
publication date 2018-08-01
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023