Mechanical Characteristics of Asphaltic Mixtures Containing Titanium-Dioxide Photocatalyst PDF Download
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Author: Louay Mohammad
Publisher:
ISBN:
Category : Cement
Languages : en
Pages : 8
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Book Description
Photocatalysis pavements containing nano and ultrafine titanium dioxide (TiO2) can trap and degrade organic and inorganic particles in the air, removing harmful air pollutants, such as nitrogen oxides (NOx) and volatile organic compounds in the presence of UV light (sunlight). To accommodate the rapid development and adoption of this technology, performance characterization of photocatalytic mixture is needed. The objective of this study is to conduct a comprehensive laboratory evaluation of conventional HMA and WMA mixtures containing the nano TiO2 photocatalyst. To achieve this objective, two asphalt cement binder blends, consisting of an unmodified PG 64-22 and SBS polymer-modified PG 70-22, and a commercial crystallized anatase-based titanium-dioxide ultra-fine powder with an active surface area of 90 m2/g were prepared at a modification rate of 7 % by weight of the binder. The blends were used in 19-mm Superpave asphalt mixtures. The content of Evotherm J1 WMA additive was 1.0 % by weight of the binder. The mixture performance tests included modified Lottman test, SCB, LWT, and TSRST. Based on the results of the experimental program, the use of TiO2 as a modifier to HMA and WMA mixtures did not significantly alter the performance as compared to conventional mixes; therefore, TiO2 may be used to modify both HMA and WMA mixtures without damaging effects on performance.
Author: Louay Mohammad
Publisher:
ISBN:
Category : Cement
Languages : en
Pages : 8
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Book Description
Photocatalysis pavements containing nano and ultrafine titanium dioxide (TiO2) can trap and degrade organic and inorganic particles in the air, removing harmful air pollutants, such as nitrogen oxides (NOx) and volatile organic compounds in the presence of UV light (sunlight). To accommodate the rapid development and adoption of this technology, performance characterization of photocatalytic mixture is needed. The objective of this study is to conduct a comprehensive laboratory evaluation of conventional HMA and WMA mixtures containing the nano TiO2 photocatalyst. To achieve this objective, two asphalt cement binder blends, consisting of an unmodified PG 64-22 and SBS polymer-modified PG 70-22, and a commercial crystallized anatase-based titanium-dioxide ultra-fine powder with an active surface area of 90 m2/g were prepared at a modification rate of 7 % by weight of the binder. The blends were used in 19-mm Superpave asphalt mixtures. The content of Evotherm J1 WMA additive was 1.0 % by weight of the binder. The mixture performance tests included modified Lottman test, SCB, LWT, and TSRST. Based on the results of the experimental program, the use of TiO2 as a modifier to HMA and WMA mixtures did not significantly alter the performance as compared to conventional mixes; therefore, TiO2 may be used to modify both HMA and WMA mixtures without damaging effects on performance.
Author: Y. Richard Kim
Publisher: CRC Press
ISBN: 1315736756
Category : Technology & Engineering
Languages : en
Pages : 1966
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Book Description
Asphalt Pavements contains the proceedings of the International Conference on Asphalt Pavements (Raleigh, North Carolina, USA, 1-5 June 2014), and discusses recent advances in theory and practice in asphalt materials and pavements. The contributions cover a wide range of topics:- Environmental protection and socio-economic impacts- Additives and mo
Author: Chih-Huang Weng
Publisher: CRC Press
ISBN: 1000982157
Category : Technology & Engineering
Languages : en
Pages : 406
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Book Description
Constructional Engineering and Ecological Environment contains papers presented at the 4th International Symposium on Architecture Research Frontiers and Ecological Environment (ARFEE 2022, Guilin, China, 23–25 December, 2022). With a focus on hot research topics and difficulties in construction technology and ecological environment, this book provides the latest research results on a variety of topics: building structure civil engineering seismic technology ecological environment repair The book is aimed at engineers, scholars and researchers in construction, structural engineering and environmental sciences.
Author: Ibrahim Dincer
Publisher: Elsevier
ISBN: 0128149256
Category : Science
Languages : en
Pages : 5543
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Book Description
Comprehensive Energy Systems, Seven Volume Set provides a unified source of information covering the entire spectrum of energy, one of the most significant issues humanity has to face. This comprehensive book describes traditional and novel energy systems, from single generation to multi-generation, also covering theory and applications. In addition, it also presents high-level coverage on energy policies, strategies, environmental impacts and sustainable development. No other published work covers such breadth of topics in similar depth. High-level sections include Energy Fundamentals, Energy Materials, Energy Production, Energy Conversion, and Energy Management. Offers the most comprehensive resource available on the topic of energy systems Presents an authoritative resource authored and edited by leading experts in the field Consolidates information currently scattered in publications from different research fields (engineering as well as physics, chemistry, environmental sciences and economics), thus ensuring a common standard and language
Author: Sam Fragomeni
Publisher: CRC Press
ISBN: 0203829867
Category : Technology & Engineering
Languages : en
Pages : 956
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Book Description
Incorporating Sustainable Practice in Mechanics of Structures and Materials is a collection of peer-reviewed papers presented at the 21st Australasian Conference on the Mechanics of Structures and Materials (ACMSM21, Victoria, University, Melbourne, Australia, 7th 10th of December 2010). The contributions from academics, researchers and practisin
Author: Yoshihiko Ohama
Publisher: Springer
ISBN: 9789400712980
Category :
Languages : en
Pages : 60
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Book Description
Due to the semiconducting nature of its anatase crystal type, titanium dioxide in construction materials acts as a photocatalyst and exhibits air purifying, self-cleaning and antibacterial action. This book covers the theory and applications of the process.
Author: Robert Hunter
Publisher: ICE Publishing
ISBN: 9780727758378
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Shell has been at the forefront of bitumen technology for over 90 years, and continues to play a leading role in global bitumen research and development. The Shell Bitumen Handbook is an authoritative source of information on bitumen use in road pavements around the world.
Author: Kasthurirangan Gopalakrishnan
Publisher: Springer Science & Business Media
ISBN: 3642166571
Category : Technology & Engineering
Languages : en
Pages : 276
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Book Description
Nanotechnology in Civil Infrastructure is a state-of-the art reference source describing the latest developments in nano-engineering and nano-modification of construction materials to improve the bulk properties, development of sustainable, intelligent, and smart concrete materials through the integration of nanotechnology based self-sensing and self-powered materials and cyber infrastructure technologies, review of nanotechnology applications in pavement engineering, development of novel, cost-effective, high-performance and long-lasting concrete products and processes through nanotechnology-based innovative processing of cement and cement paste, and advanced nanoscience modeling, visualization, and measurement systems for characterizing and testing civil infrastructure materials at the nano-scale. Researchers, practitioners, undergraduate and graduate students engaged in nanotechnology related research will find this book very useful.
Author: Chaudhery Mustansar Hussain
Publisher: Elsevier
ISBN: 0128190507
Category : Technology & Engineering
Languages : en
Pages : 292
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Book Description
Handbook of Smart Photocatalytic Materials: Environment, Energy, Emerging Applications and Sustainability provides an intriguing and useful guide to catalysis and materials. The handbook covers applications of smart photocatalytic materials for energy environmental protection and emerging fields. Also covered is the safety risk of Smart Photocatalytic Materials, commercialization, their fate and transportation in the environment, and sustainability. This volume provides a valuable roadmap, outlining common principles behind their use. Every chapter of this volume presents state-of-the-art knowledge on sustainable practices of smart photocatalytic materials (SPMs), including concepts of theory and practice. This handbook is a valued reference for both the academic and industrial researchers looking for recent developments in the field. - Covers all aspects of recent developments in Environmental, Energy and Emerging applications of Smart Photocatalytic Materials - Focuses on advanced applications and future research advancements of Smart Photocatalytic Materials - Emphasizes the sustainability aspect of Smart Photocatalytic Materials - Presents a valuable reference for researchers and students that stimulates interest in designing smart materials
Author: Fernando Pacheco-Torgal
Publisher: Elsevier
ISBN: 0857098837
Category : Technology & Engineering
Languages : en
Pages : 459
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Book Description
As the environmental impact of existing construction and building materials comes under increasing scrutiny, the search for more eco-efficient solutions has intensified. Nanotechnology offers great potential in this area and is already being widely used to great success. Nanotechnology in eco-efficient construction is an authoritative guide to the role of nanotechnology in the development of eco-efficient construction materials and sustainable construction.Following an introduction to the use of nanotechnology in eco-efficient construction materials, part one considers such infrastructural applications as nanoengineered cement-based materials, nanoparticles for high-performance and self-sensing concrete, and the use of nanotechnology to improve the bulk and surface properties of steel for structural applications. Nanoclay-modified asphalt mixtures and safety issues relating to nanomaterials for construction applications are also reviewed before part two goes on to discuss applications for building energy efficiency. Topics explored include thin films and nanostructured coatings, switchable glazing technology and third generation photovoltaic (PV) cells, high-performance thermal insulation materials, and silica nanogel for energy-efficient windows. Finally, photocatalytic applications are the focus of part three, which investigates nanoparticles for pollution control, self-cleaning and photosterilisation, and the role of nanotechnology in manufacturing paints and purifying water for eco-efficient buildings.Nanotechnology in eco-efficient construction is a technical guide for all those involved in the design, production and application of eco-efficient construction materials, including civil engineers, materials scientists, researchers and architects within any field of nanotechnology, eco-efficient materials or the construction industry. - Provides an authoritative guide to the role of nanotechnology in the development of eco-efficient construction materials and sustainable construction - Examines the use of nanotechnology in eco-efficient construction materials - Considers a range of important infrastructural applications, before discussing applications for building energy efficiency
