Evaluation of Asphalt Blended With Low Percentage of Carbon Micro-Fiber and Nanoclay
Evaluation of Asphalt Blended With Low Percentage of Carbon Micro-Fiber and Nanoclay

Author: Hui Yao

Publisher:

Published: 2013

Total Pages: 11

ISBN-13:

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The objectives of this study are to investigate the applicability of carbon micro-fiber and nanoclay in asphalt binders and to evaluate the performance of micro- and nano-modified asphalt (NMA) binders in terms of rheological properties. Due to their unique characteristics, micro- and nanomaterials were hypothesized to play a critical role in enhancing the performance behavior of asphalt binders. In light of existing research, carbon micro-fiber (MCF) and Nanomer I.44P (NI.44P) were selected as the micro- and nanomaterials for this research. Then, these materials were added into the PG 58-34 control asphalt binder at the concentrations of 2 % and 4 % by weight. SuperpaveTM binder tests{97}rotational viscosity (RV), dynamic shear rheometer (DSR), and bending beam rheometer (BBR){97}were then conducted for evaluating the performance of each modified asphalt binder. Also, the characterization tests were run on the aged samples prepared using the rolling thin film oven (RTFO) and pressure aging vessel (PAV) to simulate the short-term and long-term aging. Subsequently, the viscosity, dynamic shear modulus (|G*|) and phase angle (?) of asphalt binders were analyzed, and the dissipated energy per load cycle was introduced to estimate the asphalt binders' rutting and fatigue cracking resistance. It was found that the dynamic shear modulus of asphalt binders can be improved by the selected micro- and nanomaterials. Furthermore, the NI.44P modified asphalt showed better properties relative to the other modified asphalt binders or the control (PG 58-34) binder.

Innovative Developments of Advanced Multifunctional Nanocomposites in Civil and Structural Engineering
Innovative Developments of Advanced Multifunctional Nanocomposites in Civil and Structural Engineering

Author: Kenneth Loh

Publisher: Woodhead Publishing

Published: 2016-02-03

Total Pages: 406

ISBN-13: 1782423443

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Innovative Developments of Advanced Multifunctional Nanocomposites in Civil and Structural Engineering focuses on nanotechnology, the innovation and control of materials at 100 nm or smaller length scales, and how they have revolutionized almost all of the various disciplines of science and engineering study. In particular, advances in synthesizing, imaging, and manipulating materials at the nano-scale have provided engineers with a broader array of materials and tools for creating high-performance devices. Nanomaterials possess drastically different properties than those of their bulk counterparts mainly because of their high surface-to-mass ratios and high surface energies/reactivity. For instance, carbon nanotubes have been shown to possess impressive mechanical strength, stiffness, and electrical conductivity superior to that of bulk carbon. Whilst nanotechnology has become deeply rooted in electrical, chemical, and materials engineering disciplines, its proliferation into civil engineering did not begin until fairly recently. This book covers that proliferation and the main challenges associated with the integration of nanomaterials and nano-scale design principles into civil and structural engineering. Examines nanotechnology and its application to not only structural engineering, but also transportation, new infrastructure materials, and the applications of nanotechnology to existing structural systems Focuses on how nanomaterials can provide enhanced sensing capabilities and mechanical reinforcement of the original structural material Analyzes experimental and computational work carried out by world-renowned researchers

Risk, Reliability and Sustainable Remediation in the Field of Civil and Environmental Engineering
Risk, Reliability and Sustainable Remediation in the Field of Civil and Environmental Engineering

Author: Thendiyath Roshni

Publisher: Elsevier

Published: 2022-03-22

Total Pages: 554

ISBN-13: 0323856993

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Risk, Reliability and Sustainable Remediation in the Field of Civil and Environmental Engineering illustrates the concepts of risk, reliability analysis, its estimation, and the decisions leading to sustainable development in the field of civil and environmental engineering. The book provides key ideas on risks in performance failure and structural failures of all processes involved in civil and environmental systems, evaluates reliability, and discusses the implications of measurable indicators of sustainability in important aspects of multitude of civil engineering projects. It will help practitioners become familiar with tolerances in design parameters, uncertainties in the environment, and applications in civil and environmental systems. Furthermore, the book emphasizes the importance of risks involved in design and planning stages and covers reliability techniques to discover and remove the potential failures to achieve a sustainable development. Contains relevant theory and practice related to risk, reliability and sustainability in the field of civil and environment engineering Gives firsthand experience of new tools to integrate existing artificial intelligence models with large information obtained from different sources Provides engineering solutions that have a positive impact on sustainability

Sustainable Winter Road Operations
Sustainable Winter Road Operations

Author: Xianming Shi

Publisher: John Wiley & Sons

Published: 2018-08-27

Total Pages: 476

ISBN-13: 1119185068

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The first and only comprehensive guide to best practices in winter road operations Winter maintenance operations are essential to ensure the safety, mobility, and productivity of transportation systems, especially in cold-weather climates, and responsible agencies are continually challenged to provide a high level of service in a fiscally and environmentally responsible manner. Sustainable Winter Road Operations bridges the knowledge gaps, providing the first up-to-date, authoritative, single-source overview and guide to best practices in winter road operations that considers the triple bottom line of sustainability. With contributions from experts in the field from around the world, this book takes a holistic approach to the subject. The authors address the many negative impacts on regional economies and the environment of poorly planned and inadequate winter road operations, and they make a strong case for the myriad benefits of environmentally sustainable concepts and practices. Best practice applications of materials, processes, equipment, and associated technologies and how they can improve the effectiveness and efficiency of winter operations, optimize materials usage, and minimize cost, corrosion, and environmental impacts are all covered in depth. Provides the first up-to-date, authoritative and comprehensive overview of best practices in sustainable winter road operations currently in use around the world Covers materials, processes, equipment, and associated technologies for sustainable winter road operations Brings together contributions by an international all-star team of experts with extensive experience in designing, implementing, and managing sustainable winter road operations Designed to bring professionals involved in transportation and highway maintenance and control up to speed with current best practice Sustainable Winter Road Operations is essential reading for maintenance professionals dealing with snow and ice control operations on highways, motorways and local roads. It is a valuable source of information and guidance for decision makers, researchers, and engineers in transportation engineering involved in transportation and highway maintenance. And it is an ideal textbook for advanced-level courses in transportation engineering.

Nanotechnology in Civil Infrastructure
Nanotechnology in Civil Infrastructure

Author: Kasthurirangan Gopalakrishnan

Publisher: Springer Science & Business Media

Published: 2011-03-31

Total Pages: 276

ISBN-13: 3642166571

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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.

Modified Asphalt
Modified Asphalt

Author: Jose Luis Rivera Armenta

Publisher: BoD – Books on Demand

Published: 2018-09-19

Total Pages: 142

ISBN-13: 1789237262

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Asphalt modification is an important area in the development of new road and pavement materials. There is an urgent demand for road materials that can minimize fracture at low temperatures and increase resistance to deformation at high temperatures. The function of asphalt is to bind aggregate to protect it from water and other harmful agents. In the beginning asphalt was ideal for this purpose, but recently traffic loads have increased and environmental factors have deteriorated more rapidly than before. Asphalt is a byproduct of crude oil in the refining process, and it is considered a complex heterogeneous mixture of hydrocarbons. Asphalt modification has become an important research area, using several methods and new materials as modifiers.

Nanotechnology in Eco-Efficient Construction
Nanotechnology in Eco-Efficient Construction

Author: Fernando Pacheco-Torgal

Publisher: Elsevier

Published: 2013-04-04

Total Pages: 459

ISBN-13: 0857098837

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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

Polymer-Clay Nanocomposites
Polymer-Clay Nanocomposites

Author: T. J. Pinnavaia

Publisher: Wiley

Published: 2001-01-19

Total Pages: 0

ISBN-13: 9780471637004

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Polymer-clay nanocomposites are formed through the union of two very different materials with organic and mineral pedigrees. The hybrid compositions, however, exhibit large increases in tensile strength, modulus, and heat distortion temperature as compared with the pristine polymer. The composites also have lower water sensitivity, reduced permeability to gases, and a similar thermal coefficient of expansion. All of these property improvements can be realized without a loss of clarity in the polymer. Further, it has been found that nanocomposites impart a level of flame retardance and UV resistance not present in the pure polymer. These improvements in performance properties at relatively low clay loading (typically 2 -10wt %) have stimulated intensive research in both industry and academia over the past decade. Polymer-Clay Nanocomposites presents the first comprehensive overview of the state of the art of these materials since they were first reported a decade ago. Covering both the theory and practical applications, this volume in the 'Wiley Series in Polymer Science' covers the key aspects of these important materials including: * Polymer-clay intercalates * The preparation and general properties of special practical and commercial significance (including strength, stiffness, toughness, permeability, fire retardation and chemical stability) * The elucidation of the structural and rheological factors influencing performance and processing properties Polymer-Clay Nanocomposites is an indispensable text for polymer scientists, composites formulators, materials engineers, resin producers, filters and additive producers as well as university lecturers, and organic and inorganic chemists working in this important and fascinating area.