Advances In Cement Based Materials

Author: Gideon P.A.G. Van Zijl
Publisher: CRC Press
ISBN: 9780415876377
Size: 58.35 MB
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Collection of selected papers on current advances in high performance construction materials. Contributions deal with the development, characterization, application procedures, performance and structural design of materials with key potential in civil engineering works. Materials treated are fibre reinforced concrete, high performance concrete, self compacting concrete and novel combinations of these. For researchers, practitioners, consultants, contractors and suppliers.

Durability Of Strain Hardening Fibre Reinforced Cement Based Composites Shcc

Author: Gideon P.A.G. van Zijl
Publisher: Springer Science & Business Media
ISBN: 9789400703384
Size: 71.80 MB
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Strain-Hardening Fibre-Reinforced Cement-Based Composites (SHCC) were named after their ability to resist increased tensile force after crack formation, over a significant tensile deformation range. The increased resistance is achieved through effective crack bridging by fibres, across multiple cracks of widths in the micro-range. Whether these small crack widths are maintained under sustained, cyclic or other load paths, and whether the crack width limitation translates into durability through retardation of ingress of moisture, gas and other deleterious matter, are scrutinized in this book by evaluation of test results from several laboratories internationally. The durability of SHCC under mechanical, chemical, thermal and combined actions is considered, both for the composite and the fibre types typically used in SHCC. The compilation of this state-of-the-art report has been an activity of the RILEM TC 208-HFC, Subcommittee 2: Durability, during the committee life 2005-2009.

Self Healing Phenomena In Cement Based Materials

Author: Mario de Rooij
Publisher: Springer Science & Business Media
ISBN: 9400766246
Size: 23.76 MB
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Self-healing materials are man-made materials which have the built-in capability to repair damage. Failure in materials is often caused by the occurrence of small microcracks throughout the material. In self-healing materials phenomena are triggered to counteract these microcracks. These processes are ideally triggered by the occurrence of damage itself. Thus far, the self-healing capacity of cement-based materials has been considered as something "extra". This could be called passive self-healing, since it was not a designed feature of the material, but an inherent property of it. Centuries-old buildings have been said to have survived these centuries because of the inherent self-healing capacity of the binders used for cementing building blocks together. In this State-of-the-Art Report a closer look is taken at self-healing phenomena in cement-based materials. It is shown what options are available to design for this effect rather than have it occur as a "coincidental extra".

The New Harvest

Author: Calestous Juma
Publisher: OUP Us
ISBN: 0190237236
Size: 49.81 MB
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African agriculture is currently at a crossroads, at which persistent food shortages are compounded by threats from climate change. But, as this book argues, Africa can feed itself in a generation and can help contribute to global food security. To achieve this Africa has to define agriculture as a force in economic growth by advancing scientific and technological research, investing in infrastructure, fostering higher technical training, and creating regional markets.

Towards A Sustainable Bioeconomy Principles Challenges And Perspectives

Author: Walter Leal Filho
Publisher: Springer
ISBN: 3319730282
Size: 58.96 MB
Format: PDF
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This book gathers contributions from scientists and industry representatives on achieving a sustainable bioeconomy. It also covers the social sciences, economics, business, education and the environmental sciences. There is an urgent need to optimise and maximise the use of biological resources, so that primary production and processing systems can generate more food, fibre and other bio-based products with less environmental impacts and lower greenhouse gas emissions. In other words, we need a “sustainable bioeconomy” – a term that encompasses the sustainable production of renewable resources from land, fisheries and aquaculture environments and their conversion into food, feed, fibre bio-based products and bio-energy, as well as related public goods. Despite the relevance of achieving a sustainable bioeconomy, there are very few publications in this field. Addressing that gap, this book illustrates how biological resources and ecosystems could be used in a more sustainable, efficient and integrated manner – in other words, how the principles of sustainable bioeconomy can be implemented in practice. Given its interdisciplinary nature, the field of sustainable bioeconomy offers a unique opportunity to address complex and interconnected challenges, while also promoting economic growth. It helps countries and societies to make a transition and to use resources more efficiently, and shows how to rely less on biological resources to satisfy industry demands and consumer needs. The papers are innovative, cross-cutting and include many practice-based lessons learned, some of which are reproducible elsewhere. In closing, the book, prepared by the Inter-University Sustainable Development Research Programme (IUSDRP) and the World Sustainable Development Research and Transfer Centre (WSD-RTC), reiterates the need to promote a sustainable bioeconomy today.

The Messina Strait Bridge

Author: Fabio Brancaleoni
Publisher: CRC Press
ISBN: 9780415468145
Size: 71.20 MB
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This book describes the enormous depth of work carried out since the early 1970s on the Messina Strait Bridge, up to the recent award of the detailed design and construction contract. This important work has included extensive studies, concepts and design developments, with far reaching applications, which have all confirmed the feasibility of this huge endeavour and have led to the optimisation of costs and expected performance levels. Attention is focused not only on the design itself, but also on the context for the project (e.g. historical, geological, seismo-tectonic and wind conditions; structural and mechanical properties; project management and financial aspects; and environmental considerations), and on the great challenges involved. Thus, considering the innovations and specific solutions adopted in overcoming the challenges presented by constructing a world record span of 3,300 metres at this site, it becomes clear how the Messina Strait Crossing will take its place as a masterpiece in bridge engineering history. This book will be of interest to bridge and structural engineers, geotechnical and wind engineers, mechanical and earthquake engineers, graduate students in all these areas and all others with a broad interest in bridge design and engineering.

The European Union And Global Development

Author: Stefan Gänzle
Publisher: Palgrave Macmillan
ISBN: 023031967X
Size: 49.70 MB
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Many of the central issues faced by EU Foreign Policy - such as state fragility, illegal migration and environmental degradation - are challenges of global development. For European policymakers the increasing importance of development as an external relations priority will demand the refinement of existing instruments and the testing of new approaches. This book addresses debates on how the EU manages various modes of governance in development policymaking, its engagement with other global actors and the effectiveness of its policy formulation and implementation. Given the restrictions of policymaking in an environment characterised by uncertainty, difficulty and complexity, the contributions to this volume explore decision-making and implementation across a wide range of issue-areas with the objective of highlighting choices that could improve the coherence, and thus the effectiveness, of European policy for global development. -- Publisher description.

Environmental Management Accounting For Cleaner Production

Author: Stefan Schaltegger
Publisher: Springer Science & Business Media
ISBN: 1402089139
Size: 13.60 MB
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Sustainability requires companies to develop in an economically, environmentally and socially sustainable manner. Corporate sustainable development in turn requires movement towards cleaner production. In order to recognize the potential from cleaner production – reduced costs and fewer environmental impacts through the reduced use of materials – environmental management accounting (EMA) is a necessary information management tool. Environmental Management Accounting for Cleaner Production reveals a set of tools for companies to collect, evaluate and interpret the information they need to estimate their potential to use cleaner production to realize cost savings and to make the best decisions about the available cleaner production options. EMA is therefore the key for driving environmental progress, cost savings, increased competitiveness and corporate sustainability through the means of cleaner production.

Strain Hardening Cement Based Composites

Author: Viktor Mechtcherine
Publisher: Springer
ISBN: 9402411941
Size: 41.42 MB
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This is the proceedings of the 4th International Conference on Strain-Hardening Cement-Based Composites (SHCC4), that was held at the Technische Universität Dresden, Germany from 18 to 20 September 2017. The conference focused on advanced fiber-reinforced concrete materials such as strain-hardening cement-based composites (SHCC), textile-reinforced concrete (TRC) and high-performance fiber-reinforced cement-based composites (HPFRCC). All these new materials exhibit pseudo-ductile behavior resulting from the formation of multiple, fine cracks when subject to tensile loading. The use of such types of fiber-reinforced concrete could revolutionize the planning, development, dimensioning, structural and architectural design, construction of new and strengthening and repair of existing buildings and structures in many areas of application. The SHCC4 Conference was the follow-up of three previous successful international events in Stellenbosch, South Africa in 2009, Rio de Janeiro, Brazil in 2011, and Dordrecht, The Netherlands in 2014.