Results 41 to 50 of about 33,106 (229)

Study on Thixotropy of Mastic Asphalt Binder and Asphalt Mastic

open access: yesBuildings, 2023
In order to analyze the thixotropy of mastic asphalt concrete during the mixing process, the factors affecting the thixotropy of mastic asphalt binder and asphalt mastic are studied, and the measures to shorten the mixing time of mastic asphalt mixture ...
Shunxian Zhang   +3 more
doaj   +1 more source

Revisiting acidulation for tall oil and lignin manufacturing

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Tall oil is a byproduct of the kraft pulping process when softwood is used as raw material. As the production of softwood‐based pulp is in high demand, the optimization of the tall oil production process needs to be revisited to ensure the highest quality and quantity of tall oil manufacturing. In this work, the process for tall oil production
Thomas Aro, Weijue Gao, Pedram Fatehi
wiley   +1 more source

Fundamentals of Asphalt Binders [PDF]

open access: yes, 2023
This presentation will help local agency personnel, consultants, and contractors to develop a continued under- standing of the asphalt binders used in hot mix asphalt. This presentation will cover fundamental aspects of asphalt binders, including how they are produced, how they are tested, and why and how their properties influence constructability and
openaire  

Reversible Aging in Asphalt Binders [PDF]

open access: yesEnergy & Fuels, 2007
X-ray diffraction, optical microscopy, and mass spectrometry techniques were used in an attempt to clarify the morphological and chemical features that are responsible for reversible aging processes that occur in asphalt binders during conditioning at low temperatures. The reversible aging term is used in this paper to capture all reversible processes (
Shirokoff, John W.   +2 more
openaire   +2 more sources

Laboratory and Field Evaluation of Modified Asphalt Binders and Mixes for Alaskan Pavements [PDF]

open access: yes, 2019
In order to properly characterize modified asphalt binders and mixes for Alaskan pavements, this study evaluated properties of 13 asphalt binders typically used in Alaska from three different suppliers, and 10 hot mix asphalt (HMA) mixtures which were ...
Liu, Jenny, Liu, Jun
core  

Enhancing Plateau Capacity of Binder‐Free and Self‐Supported Napkin‐Based Hard Carbon Anodes for Sodium‐Ion Batteries Via a Pre‐Oxidation Modulation Strategy

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Precise regulation of preoxidation time and carbonization temperature in biomass napkin‐derived hard carbon generates abundant closed pores and ultramicropores, significantly enhancing the capacity in the low‐potential plateau region (the high plateau capacity of 266 mAh g−1) and thereby achieving highly reversible sodium‐ion storage (395 mAh g−1 at 30 
Haoran Wang   +4 more
wiley   +1 more source

Aging of Rejuvenated Asphalt Binders [PDF]

open access: yesAdvances in Materials Science and Engineering, 2017
An important concern that limits the RAP content in asphalt mixtures is the fact that the aged binder that is present in the RAP can cause premature cracking. Rejuvenators are frequently added to high RAP mixtures to enhance the properties of the binder. There is no existing method to predict the longevity of a rejuvenated asphalt.
Mojtaba Mohammadafzali   +4 more
openaire   +2 more sources

Laboratory and statistical evaluation of the microstructural characteristics of Sand Asphalt Mortar

open access: yesTransportes
One of the problems encountered in asphalt pavements is fatigue damage, which is related to the type of aggregate, the rheology of the asphalt binder and its chemical composition, resulting in the emergence of microcracks and, subsequently, macrocracks.
Pamella Parreira de Miranda   +2 more
doaj   +1 more source

Why Autonomous Vehicles Are Not Ready Yet: A Multi‐Disciplinary Review of Problems, Attempted Solutions, and Future Directions

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong   +13 more
wiley   +1 more source

Performance Damage Characteristics of Asphalt Binder Suffered from the Action of Sulfate

open access: yesAdvances in Materials Science and Engineering, 2019
Sulfate erosion is a threat to durability and sustainability of pavement structure. In this work, the performance degradation of asphalt binder under internal sulfate erosion was investigated. Different dosages of Na2SO4 (0 wt.%, 2.5 wt.%, 5 wt.%, and 10
Rui Xiong   +8 more
doaj   +1 more source

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