Results 81 to 90 of about 5,843 (191)

Revisiting the Hummeln structure, Sweden—A shallow marine Cambrian impact structure

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 7, Page 1213-1242, July 2026.
Abstract Hummeln is a simple impact structure located in south‐eastern Sweden. It is approximately 1.2 km in diameter and almost completely covered by a lake. Here, we present the first detailed investigation of impactites and mapping of the 164.25 m deep drill core Hummeln‐1 with a focus on impact metamorphism and the impact process.
S. Alwmark   +8 more
wiley   +1 more source

Comparative Analysis of Maturity between Solid Bitumen and Bitumen Inclusions in Marine Shale of the Sichuan Basin and Its Geological Significance

open access: yesYankuang ceshi
Organic matter maturity serves as a critical indicator for evaluating hydrocarbon generation potential of source rocks and shale gas preservation conditions.
Zhipeng ZHOU   +9 more
doaj   +1 more source

Effects of nano eggshell powder as a sustainable bio-filler on the physical, rheological, and microstructure properties of bitumen

open access: yesResults in Engineering
Improving bitumen properties to withstand traffic loads and environmental conditions is essential for prolonging pavement life. Given that nanomaterials stand as potential candidates to fulfil these requirements, this study focused on the potential use ...
Alattafi Hadi Zghair Chfat   +4 more
doaj   +1 more source

Evaluation of rheological and microstructural behavior of modified asphalt binder with chitosan derived from shrimp shell powder

open access: yesResults in Engineering
Chitosan derived from shrimp shells (SSPCH) was used for the first time as a biological biopolymer to modify the properties of bitumen across high, medium, and low-temperature ranges. Therefore, physical tests (penetration, softening point, and ductility)
Mahyar Arabani, Janat Farkhondeh
doaj   +1 more source

Distribution and Thermal Maturity of Devonian Carbonate Reservoir Solid Bitumen in Desheng Area of Guizhong Depression, South China

open access: yesGeofluids, 2017
The distribution of solid bitumen in the Devonian carbonate reservoir from well Desheng 1, Guizhong Depression, was investigated by optical microscope and hydrocarbon inclusions analysis. Vb and chemical structure indexes measured by bitumen reflectance,
Yuguang Hou   +5 more
doaj   +1 more source

Cooee bitumen: Dynamics and structure of bitumen- water mixtures

open access: yes, 2016
Systems of Cooee bitumen and water up to 4 mass % are studied by molecular dynamics simula- tions. The cohesive energy density of the system is shown to decrease with an increasing water content. This decrease is due mainly to an increase in potential energy which is not high enough to counterbalance the increase in volume due to the addition of water.
Lemarchand, Claire A.   +2 more
openaire   +2 more sources

Influence of preparation parameters on rheological properties and relation analysis of waste rubber modified bitumen mastic

open access: yesFrontiers in Materials
Waste rubber modified bitumen has gained significant attention as a sustainable and innovative material in the field of pavement engineering. This study aims to evaluate the performance of rubber modified bitumen mastic by considering its rheological ...
Honggang Zhang   +8 more
doaj   +1 more source

Bitumen-Biopolymer Materials Modified with Polylactic Acid with Improved Physical and Chemical Properties

open access: yesAdvances in Polymer Technology
With the continuous expansion of the global automobile fleet, there is an escalating demand to enhance and maintain current road infrastructure. Given the information provided, there will be a growing demand for bitumen, a key raw material used in the ...
Assel Jexembayeva   +3 more
doaj   +1 more source

Influence of surface layer bitumen on the performance evolution of base layer over service time

open access: yesCase Studies in Construction Materials
In conjunction with the aggregates, bitumen is commonly applied for surface and base layers of asphalt pavements. A large number of studies concentrated more on the surface layer performance influenced by different types of bitumen and service time ...
Xuemei Zhang   +6 more
doaj   +1 more source

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