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Concrete Technology For A Sustainable Development In The 21st Century

Author: Odd E. Gjorv
Publisher: CRC Press
ISBN: 1482272210
Size: 22.42 MB
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Concrete technology for a sustainable development in the 21st century focuses on the problems and challenges for the concrete industry today and in the future with particular emphasis on environmental consiousness. Primary topics include: the improvement of concretes service life to ease technical and economical problems and the waste of natural resources; environmentally friendly concrete production including new production methods and recycling materials; and actually using concrete to solve environmental problems, for example through the containment of hazardous waste. The book is the result of the international workshop held in Lofoton, Norway. With very select contributions from the most distinguished international professional experts, this book provides a basic framework and guidelines for national and international bodies.

Sustainability Of Concrete

Author: Pierre-Claude Aïtcin
Publisher: CRC Press
ISBN: 1482266695
Size: 56.34 MB
Format: PDF, Docs
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Production of Portland cement is responsible for about seven percent of the world’s greenhouse gas emissions. The pressure to make the production of concrete more sustainable, or "greener", is considerable and increasing. This requires a wholesale shift in processes, materials and methods in the concrete industry. Pure Portland cement will need to be replaced by more complex binary, tertiary or even quaternary binders, including other types of cementitious materials. We can expect an increasing use of high performance concrete, primarily because of its high sustainability and durability. Much more attention will have to be paid to the proper curing of the concrete if we want to improve its life expectancy. Presenting the latest advances in the science of concrete this book focuses particularly on sustainability, durability, and economy. It explores the potential for increased sustainability in concrete from the initial mixing right through to its behaviour in complex structures exposed to different types of loads and aggressive environments.

Proceedings Of The International Workshop On Sustainable Development And Concrete Technology Beijing China May 20 21 2004

Author: Iowa State University. Center for Transportation Research and Education
Publisher: Center for Transportation Research and Education Iow
ISBN:
Size: 44.92 MB
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This book is the proceedings of the International Workshop on Sustainable Development and Concrete Technology held at Tsinghua University, Beijing, People's Republic of China, May 20-21, 2004. It contains approximately 30 papers presented at the workshop.

Durability Design Of Concrete Structures In Severe Environments Second Edition

Author: Odd E. Gjørv
Publisher: CRC Press
ISBN: 146658730X
Size: 22.83 MB
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One of the most pressing problems facing the construction industry globally is the deterioration of major concrete infrastructure in marine and other chloride-containing environments. While recent advancements in concrete technology have made it easier to control the negative impact of deteriorating processes such as alkali-aggregate reaction, freezing and thawing and chemical attack, chloride-induced corrosion of embedded steel continues to pose the biggest threat to structure durability and performance. The second edition of Durability Design of Concrete Structures in Severe Environments focuses on enhancing the durability and service life of concrete structures. The text describes field experience and deteriorating processes of concrete structures in severe environments, and includes current data based on extensive field investigations. It presents a durability design based on calculation of corrosion probability, and outlines additional protective strategies and measures. The text also describes procedures for performance-based concrete quality control and quality assurance with documentation of achieved construction quality and compliance with specified durability. The text further covers calculation of life cycle costs and life cycle assessment, and includes some new recommended job specifications. What’s New in the Second Edition: This second edition delivers more results and experience from practical applications of the probability-based durability design and the performance-based concrete quality control. It includes recent commercial projects both for Oslo Harbor KF and Nye Tjuvholmen KS in Oslo, and contains some preliminary results from the more comprehensive research program "Underwater Infrastructure and Underwater City of the Future" at Nanyang Technological University in Singapore. The book serves as an essential guide both for the owners and the consulting and construction engineers involved in new and major concrete infrastructure design and construction.

Pozzolanic And Cementitious Materials

Author: V. M. Malhotra
Publisher: Taylor & Francis
ISBN: 9782884492355
Size: 32.19 MB
Format: PDF
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"Pozzolanic and cementitious admixtures are becoming increasingly important to enhance the environmental friendliness of portland-cement concrete and to improve workability, durability, and other properties of the material. This book provides a simple but comprehensive review of the composition and performance of important pozzolanic and cementitious admixtures, such as fly ash, granulated blast-furnace slag, natural pozzolans, silica fume, rice-husk ash and metakaolin."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved

The 21st Century Engineer

Author: Patricia D. Galloway
Publisher: ASCE Publications
ISBN: 9780784409367
Size: 20.18 MB
Format: PDF
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Once, civil engineers were esteemed by the public as both visionaries and leaders in a noble profession essential to the welfare of humankind. Today, though, civil engineers are often seen as mere advisors and technicians. The 21st-Century Engineer argues that this situation must change and that the means to do so are in the hands of engineers themselves. In this groundbreaking manifesto, Galloway vividly paints the new global landscape where megaprojects, sustainability, infrastructure security, and multicultural work teams pose challenges for which engineers may be unprepared. With businesslike brevity, she lays out nontechnical areas in which engineers must become proficient: globalization, communication, ethics and professionalism, diversity, and leadership. Galloway contends that the existing system for educating engineers must change, and she proposes a new master's degree in professional engineering management. A must-read for all thoughtful engineers involved in educating, hiring, and managing, The 21st-Century Engineer is a clarion call to reform the way today's engineers prepare for tomorrow.

Toward Sustainable Agricultural Systems In The 21st Century

Author: Board on Agriculture and Natural Resources
Publisher: National Academies Press
ISBN: 0309148960
Size: 20.91 MB
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In the last 20 years, there has been a remarkable emergence of innovations and technological advances that are generating promising changes and opportunities for sustainable agriculture, yet at the same time the agricultural sector worldwide faces numerous daunting challenges. Not only is the agricultural sector expected to produce adequate food, fiber, and feed, and contribute to biofuels to meet the needs of a rising global population, it is expected to do so under increasingly scarce natural resources and climate change. Growing awareness of the unintended impacts associated with some agricultural production practices has led to heightened societal expectations for improved environmental, community, labor, and animal welfare standards in agriculture. Toward Sustainable Agricultural Systems in the 21st Century assesses the scientific evidence for the strengths and weaknesses of different production, marketing, and policy approaches for improving and reducing the costs and unintended consequences of agricultural production. It discusses the principles underlying farming systems and practices that could improve the sustainability. It also explores how those lessons learned could be applied to agriculture in different regional and international settings, with an emphasis on sub-Saharan Africa. By focusing on a systems approach to improving the sustainability of U.S. agriculture, this book can have a profound impact on the development and implementation of sustainable farming systems. Toward Sustainable Agricultural Systems in the 21st Century serves as a valuable resource for policy makers, farmers, experts in food production and agribusiness, and federal regulatory agencies.