Results 61 to 70 of about 82,135 (303)
Rheological Properties of Bitumen and Bitumen-Heptane and Bitumen-Heptanol Mixtures
, 2021 The rheological changes and high viscosity of bitumen, arising from high molecular weight molecules in bitumen, are the main challenges for its production to the surface and its transportation in pipelines. To solve the environmental issues associated with bitumen recovery, such as greenhouse gas emissions from steam-based recovery processes, solvent ...
openaire +2 more sources
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Under low reagent dosage, the flotation performance of diesel as a collector was enhanced, and the synergistic mechanism of diesel blended with oleic acid and CTAB was investigated. Results showed that compared to pure diesel, the oleic acid blended system (Blend A) increased clean coal yield by 81.52% to 92.24%, while the CTAB blended system (
Rui Shen, Wei Zhou, Huanhuan Shang
wiley +1 more source
PROBLEMS AND PROSPECTS OF PETROLEUM BITUMEN PRODUCTION
Вестник Дагестанского государственного технического университета: Технические науки, 2016 . The world production petroleum bitumen for road construction is considered. The problems and prospects of the bitumen production in the world and Russia are shown.At present leading positions on Russian bitumen market occupy the companies Gazprom Oil ...
N. A. Belova +2 more
doaj +1 more source
Effect of Polymer on Bitumen Properties and its Performance Grade [PDF]
علوم و تکنولوژی پلیمر, 2008 With respect to the physical and mechanical limited qualities of bitumen, it benefits from certain specificability in application and its life service.
H. Ziari, S.M. Abtahi, A. Goli
doaj +1 more source
Case Studies in Construction Materials, 2021 High temperature and traffic loading are two primary threats for asphalt pavement during the pavement's life cycle. The mentioned threats lead to significant distractions, namely bitumen's oxidative aging, rutting, and fatigue failure.
Saeed Fatemi +2 more
doaj +1 more source
Application of Cantabrian and Binder Drainage Tests in Designing of Porous Asphalt Binder Content [PDF]
, 2004 Traditional mix design methods which normally incorporate the Marshall test are not appropriate to design porous asphalt because of the insensitivity of the Marshall stability values to variations in binder content.
Hardiman, H. (Hardiman)
core
In Field Application of an Innovative Sensor for Monitoring Road and Runway Surfaces [PDF]
, 2009 Water and ice detection over road and runway surfaces is important to improve traffic safety and to reduce maintenance costs. An innovative low cost capacitive sensor was endowed with an algorithm based on the time derivative of the measured capacitance ...
Mesin, Luca +2 more
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Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Coal pyrolysis, as a key thermochemical conversion process, is significantly influenced by inherent minerals, yet their role across different coal ranks remains inadequately understood. This study investigates the effect of acid‐washing (demineralization) on the thermal decomposition of six functional groups (aliphatic C–H, aromatic C–H/C=C, C=
Zhiyuan Niu +4 more
wiley +1 more source
Information about petroleum in America prior to the nineteenth Century [PDF]
, 2010 The petroleum substances have been used a lot of centuries ago: bitumen has been used in Neolithic Period to fix head's hammer of stone and to set beads.
Mazadiego Martínez, Luis Felipe +2 more
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Business Strategy and the Environment, EarlyView.ABSTRACT This paper contributes to venture‐creation research by examining how sustainable startups can overcome market constraints to drive transformative change through their business development. Conceptually, we address this question by identifying venture‐creation narratives in the learning and experimental phases of sustainable startups that ...
Ville‐Veikko Piispanen +2 more
wiley +1 more source