Results 71 to 80 of about 3,379,971 (220)

Investigation and optimization of waste LDPE plastic as a modifier of asphalt mix for highway asphalt: Case of Ethiopian roads

Case Studies in Chemical and Environmental Engineering, 2021
Overwhelming increase in plastic waste since recent years became series ecological issue for both developed and developing countries. Compromising the large plastic waste potential in Ethiopia and poor pavement performance in the roads due to severe ...
Melkamu Birlie Genet, Zenamarkos Bantie Sendekie, Addis Lemessa Jembere   +2 more
doaj   +1 more source

Bitumens modified with recycled polymers [PDF]

Materials and Structures, 2000
Increasing traffic loading and volumes on roads has led to the use of polymer modified binders to improve the performance of bitumen in terms of additional strength, durability and increased resistance to rutting and fatigue cracking. Generally those modifiers currently in use are virgin polymers but the research investigates the possibility of using ...
M. Murphy, M. O'Mahony, C. Lycett, I. Jamieson   +3 more
openaire   +2 more sources

Synthesis of functionalized polyolefins in a new continuous bench‐scale reactor apparatus

AIChE Journal, EarlyView.
Abstract In‐reactor functionalized polyolefins (FPOs), produced by molecular catalysts, are a new class of polymer materials with applications ranging from high performance adhesives to bitumen compatibilization. In this work, we disclose a procedure for the synthesis of FPOs in a new Continuous Bench‐scale Reactor Apparatus (COBRA).
Miloud Bouyahyi, Job Guzman, Travis Conant, Reggie Tennyson, Christoph Brose, Riccardo Conti, Peter Kolb, Andreas Müller   +7 more
wiley   +1 more source

Graphene Materials for Sustainable Energy Applications: A Contemporary Perspective

Carbon Energy, EarlyView.
ABSTRACT Graphene has garnered significant attention as a promising material with great potential for contributing to sustainable energy initiatives, such as RE100 (100% renewable energy initiative) and CF100 (100% carbon‐free initiative). This review aims to explore the potential of graphene for advancing renewable energy applications by highlighting
Niraj Kumar, Seul‐Yi Lee, Roop L. Mahajan, Soo‐Jin Park   +3 more
wiley   +1 more source

Insights Into the Effect of Humic Acids Extraction From Coal on Hard Carbon Microstructure and Sodium Storage Properties

Carbon Energy, EarlyView.
This study employs a simple solid‐phase alkali‐oxygen oxidation (SAO) method to extract inherent components (humic acids) from coal. We successfully extracted yellow, brown, and black humic acids by adjusting the amount of alkali. Among them, brown humic acid extraction created abundant ultra‐micropores and closed pores, greatly enhancing sodium ...
Ruizhen Song, Yakun Tang, Xiaojun Lv, Jingjing Diao, Yue Zhang, Wenhai Zhang, Lang Liu, Limin Deng, Yuliang Cao   +8 more
wiley   +1 more source

Study on the Aging Resistance of Polyurethane Precursor Modified Bitumen and its Mechanism

Sustainability, 2021
As an environmentally friendly alternative for the production of high-performance modified asphalt by chemical reactions, a liquid-state polyurethane-precursor-based reactive modifier (PRM) was developed and employed in the asphalt modification.
Liang Zhang, Pengfei Li, Guanfeng Hu, Sufeng Zhang, B. Hong, Haopeng Wang, Dawei Wang, M. Oeser   +7 more
semanticscholar   +1 more source

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

Deep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan, Fangkai Liu, Sen Zhu, Guangyou Zhu, Haiping Huang   +4 more
wiley   +1 more source

Design of SBS-Modified Bitumen Stabilizer Powder Based on the Vulcanization Mechanism

Applied Sciences, 2018
In order to improve the problem of the bad thermal storage stability of Styrene-Butadiene-Styrene Block Copolymer Modified Bitumen (SBS-modified bitumen), the vulcanization reaction was selected as the basic mechanism for the research and development of ...
Wengang Zhang, Longting Ding, Zhirong Jia   +2 more
doaj   +1 more source

Performance evaluation of waste polycarbonate as bitumen modifier

The Proceedings of the Nigerian Academy of Science, 2022
Modification of bitumen has been used to improve the properties of bitumen and bituminous mixes to mitigate the problems of bitumen at extreme and quiescent conditions.
Abdulfatai A. Murana, Aliyu M. Umar, Manasseh Tyogo, Abdulmumin A. Shuaibu, Yaseer A. Nabage   +4 more
doaj   +1 more source

The efficiency of bio-char as bitumen modifier

Heliyon
Improving the mechanical properties of bitumen is an important goal for road pavements design. For this reason, new compounds are now being sought for testing as bitumen modifiers. In this work, the authors studied the effect that two different chars have on two 50/70 bitumens with different chemical and physical characteristics.
Valeria Loise, Pietro Calandra, Alfonso Policicchio, Luigi Madeo, Cesare Oliviero Rossi, Michele Porto, Abraham Abe, Raffaele G. Agostino, Paolino Caputo.   +8 more
openaire   +6 more sources