Results 71 to 80 of about 2,667 (184)

Influence of Polyphosphoric Acid on the Consistency and Composition of Formulated Bitumen: Standard Characterization and NMR Insights

Journal of Analytical Methods in Chemistry, 2016
Over the recent years, bitumen modification with polymers, acids, or mineral fillers has gained relevance to adjust its performance properties. This work reports the use of polyphosphoric acid (PPA) for the modification of formulated bitumen.
Catarina Varanda, Inês Portugal, Jorge Ribeiro, Artur M. S. Silva, Carlos M. Silva   +4 more
doaj   +1 more source

Study of the zero shear viscosity of SBS copolymer modified bitumens

Budownictwo i Architektura, 2014
The paper presents the results of the zero shear viscosity (ZSV) determined by using a dynamic shear rheometer (DSR). The tests were conducted with the use of 50/70 penetration grade bitumen produced from Venezuelan and Russian crude oils (named V50/70 ...
Mieczysław Słowik, Marta Andrzejczak
doaj   +1 more source

Variation on Toxic and Inflammatory Potential of Coal Smoke of Different Sources From a Region With High Lung Cancer Risk

Environmental Toxicology, Volume 41, Issue 11, Page 1311-1322, November 2026.
ABSTRACT Excess lung cancer risk in Xuanwei and Fuyuan, China, has been attributed to household air pollution from use of a locally sourced smoky (bituminous) coal. However, the carcinogenic mechanisms remain unclear. Given the important role of inflammation in lung cancer development, this study compared the proinflammatory potentials of the ...
Yongliang Zhang, Wei Hu, Nathanial Rothman, Dingyu Liu, Jihua Li, Jun Xu, Bofu Ning, Roel Vermeulen, Qing Lan, Flemming R. Cassee, George S. Downward   +10 more
wiley   +1 more source

Evaluation of the fatigue macro-cracking behavior of crumb rubber modified bituminous mixes

Materiales de Construccion, 2014
The use of crumb rubber modified bitumen (CRMB) in asphalt mixes is a road engineering technology that has become increasingly important in recent years.
F. Moreno-Navarro, M. C. Rubio-Gámez, E. Tomás-Fortún, F. Valor-Hernández, A. Ramírez-Rodriguez   +4 more
doaj   +1 more source

Influence of Polymer and Rubber Modification on Fatigue Crack Propagation in Asphalt Mixtures: A Cyclic SCB and Paris Law Investigation

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 11, Page 5099-5116, November 2026.
ABSTRACT Fatigue cracking is a major distress limiting asphalt pavement service life, and Paris law–based fracture mechanics offers a more mechanistic understanding than conventional fatigue testing. However, systematic characterization across diverse modifiers, dosages, notch depths, and temperatures remains limited.
Abdullah Demirbag, Erkut Yalcin, Ragip Ince, Mehmet Yilmaz   +3 more
wiley   +1 more source

Seismic Versus Sub‐Seismic Experimental Mirror‐Like Fault Surfaces in Bituminous Dolostones

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract Mirror‐like Surfaces (MSs) are ultra‐polished surfaces frequently found in exhumed seismogenic fault zones in carbonates. They form over a wide range of pressure‐temperature conditions and slip rates, from seismic (≈1 m/s) to sub‐seismic (≈0.1–100 μm/s), reflecting distinct phases of the seismic cycle.
M. Chinello, S. Aretusini, E. Spagnuolo, J. Nava, T. Tesei, M. Fondriest, G. Di Toro   +6 more
wiley   +1 more source

Subsurface Hydrocarbon Biodegradation in the Context of Microbial Habitability and Hydrogeologic, Thermal, and Geologic Evolution of the Colorado Plateau

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 10, October 2026.
Abstract Subsurface microbial ecosystems associated with hydrocarbon reservoirs are shaped by temperature, salinity, redox gradients, and fluid flow. However, the drivers of microbial activity and hydrocarbon biodegradation over geologic timescales remain poorly constrained.
Meera P. Shah, Jennifer McIntosh, Peter Reiners, Lydia Bailey, Bradley S. Stevenson, Grant Ferguson, Ji‐Hyun Kim, Henrik Drake, Magdalena R. Osburn   +8 more
wiley   +1 more source

The Stress Relaxation Of Modified Bitumens

International Journal on Pavement Engineering & Asphalt Technology, 2015
Abstract The Asphalt pavements in Central and Eastern Europe have to be resistant to high and very low temperatures and climatic changes. Especially emphasize influence of low temperatures seems to be critical parameter. That is why the modified bitumens with low temperature susceptibility and with high resistance to low temperature cracking are ...
Pavel Coufalík, Ondřej Dašek, Jiří Kachtík, Jan Kudrna, Svatopluk Stoklásek   +4 more
openaire   +1 more source

CHARACTERISATION OF POLYMER MODIFIED BITUMEN

INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT, 2023
This study focuses on characterizing Polymer Modified Bitumen (PMB) using Ethyl Vinyl Acetate (EVA) as the modifier. The objective of the research is to investigate the effects of EVA modification on the properties of bitumen, including penetration, softening point, ductility, and specific gravity.
openaire   +1 more source

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

Journal of Petroleum Geology, Volume 49, Issue 4, Page 1179-1194, October 2026.
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