Results 81 to 90 of about 5,872 (190)

Asphalt and bitumen ageing

European Journal of Science, Innovation and Technology, 2022
The ageing of asphalt and the associated changes in its performance are largely due to the ageing binder it contains. Ageing makes bitumen harder and more brittle. The hardening and embrittlement of the binder has a direct effect on the performance characteristics of the asphalt.
openaire   +3 more sources

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, EarlyView.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

Origin and formation of a chondritic xenolith in Krymka (LL3.2, breccia): Indications for a late formation of the accretionary breccia

Meteoritics &Planetary Science, EarlyView.
Abstract An unusual chondritic xenolith was found in two sequentially prepared thin sections of a sample from the Krymka (LL3.2) chondrite. The xenolith has a rounded, slightly deformed shape of about 5 mm in apparent diameter and is partially surrounded by a double rim made of an inner fine‐grained silicate‐rich rim and an outer sulfide‐rich rim.
Aelita Girich, Addi Bischoff, Samuel Ebert, Kazuhide Nagashima, Andreas Morlok, Harald Hiesinger, Jasper Berndt   +6 more
wiley   +1 more source

Influence of rejuvenators on bitumen ageing in hot recycled asphalt mixtures

Journal of Traffic and Transportation Engineering (English ed. Online), 2018
The use of reclaimed asphalt pavement (RAP) in new hot mix asphalt (HMA) by means of hot recycling techniques generates the advantage linked to the exploitation of both lytic and bituminous component, consequently leading to the decrease of both virgin ...
Giorgia Mazzoni, Edoardo Bocci, Francesco Canestrari   +2 more
doaj   +1 more source

THE DETERMINATION OF SULPHUR IN BITUMENS. [PDF]

Journal of the American Chemical Society, 1900
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openaire   +1 more source

Carbonate‐Associated Sulfate Does Not Record Superheavy δ34S in Deep Scandinavian Bedrock Fractures: Implications for Pyrite Formation in the Deep Biosphere

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract In deep bedrock fractures of the Fennoscandian shield, pyrite with “superheavy” δ34S values of up to 147‰ exists together with calcite. The extreme variability and 34S‐enrichment in pyrite indicate that microbial sulfate reduction (MSR) evolved to almost complete sulfate exhaustion in closed‐system microenvironments.
V. Fichtner, F. Genske, E. Kooijman, H. Drake   +3 more
wiley   +1 more source

Exploratory study on bitumen content determination for foamed bitumen mixes based on porosity and indirect tensile strength

Journal of Traffic and Transportation Engineering (English ed. Online), 2017
Optimum bitumen content determination is one of the major aims for foamed bitumen mix design. However, mix design procedures for foamed bitumen mixes are still under development.
May Namutebi, Björn Birgisson, Alvaro Guarin, Denis Jelagin   +3 more
doaj   +1 more source

Fatigue and Rutting Performance of FAA and Conventional Asphalt Mixture Systems

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 8, Page 3500-3511, August 2026.
ABSTRACT This study evaluates the laboratory fatigue and rutting performance of two specification‐compliant asphalt mixture systems: an FAA‐compliant airfield mixture designed according to FAA AC 150/5370‐10H and a conventional highway mixture designed according to the Turkish General Directorate of Highways requirements.
Yalcin Karakaya, Murat Guler
wiley   +1 more source

Comparative Evaluation of Single and Combined Adsorption and Peroxone Processes for Taste and Odour Control in Reservoir Water

Water and Environment Journal, Volume 40, Issue 3, Page 524-535, August 2026.
ABSTRACT Taste and odour compounds (T&O), particularly 2‐methylisoborneol (2‐MIB) and geosmin, pose persistent challenges in drinking water treatment, as conventional methods often achieve limited removal. This study provides a comparative evaluation of five treatment strategies: activated carbon (AC) adsorption, sulfonic acid‐modified activated carbon
Betul Aykut‐Senel, Nuray Ates, Sehnaz Sule Kaplan‐Bekaroglu, Cihan Ozgur   +3 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

Yankuang ceshi
Organic matter maturity serves as a critical indicator for evaluating hydrocarbon generation potential of source rocks and shale gas preservation conditions.
Zhipeng ZHOU, Juan WU, Chao LUO, Jingyi LIANG, Yu CHEN, Jinxu XIE, Heng WANG, Qianqian JIANG, Bin DENG, Kun JIAO   +9 more
doaj   +1 more source