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Implications Of Pyrite Oxidation For Engineering Works

Author: A. Brian Hawkins
Publisher: Springer Science & Business Media
ISBN: 331900221X
Size: 78.39 MB
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The book highlights and analyses the distress to buildings caused by sulphate-induced heave, with particular reference to the recent problems in the Dublin area of Ireland. It describes the formation of pyrite, the processes involved in its oxidation and the various ways in which consequential expansion takes place. For the first time in the literature it discusses the way that buildings can be raised above their supporting foundation walls by the expansion of pyritiferous fill which has been used beneath ground-bearing floor slabs in Ireland. The significance of fractures through the iron sulphide microcrystals for the rate and extent of oxidation is discussed. Photographs and profiles of sulphate ingress into concrete/concrete blocks are presented. Case histories from the UK, North America and Ireland are discussed.

Ground Chemistry Implications For Construction

Author: A.B. Hawkins
Publisher: CRC Press
ISBN: 9789054108665
Size: 41.34 MB
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Since the 1970s and 1980s, there has been an increasing awareness of the importance of ground chemistry in construction. Bringing together representatives of the various disciplines involved in ground chemistry, the proceedings of this conference present case histories and research topics.

Hydrometallurgy 2008

Author: Courtney A. Young
Publisher: SME
ISBN: 0873352661
Size: 25.93 MB
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"Petrus van Staden shares his insights on minerals biotechnology. John Canterford explores plant design and operation. Gordon Bacon discusses the challenges of plant start-ups, and John Marsden offers practical solutions for reducing energy consumption in all aspects of unit operations." "Bob Shoemaker, one of the world's most respected authorities on precious metal recovery, reflects on developments and lessons learned during his half century in the business." "Hundreds of other authors provide insights on acid rock drainage, waste water and resource recovery, process development and modeling, heap leaching, the future role of hydrometallurgy, and countless other timely, important subjects."

River Channel Management

Author: Peter Downs
Publisher: Routledge
ISBN: 1444119079
Size: 73.36 MB
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River Channel Management is the first book to deal comprehensively with recent revolutions in river channel management. It explores the multi-disciplinary nature of river channel management in relation to modern management techniques that bear the background of the entire drainage basin in mind, use channel restoration where appropriate, and are designed to be sustainable. River Channel Management is divided into five sections: ·The Introduction outlines the need for river channel management . ·Retrospective Review offers an overview of twentieth century engineering methods and the ways that river channel systems operate. ·Realisation explains how greater understanding of river channel adjustments, channel hazards and river basin planning created a context for twenty-first century management. ·Requirements for Management explains and examines environmental assessment, restoration-based approaches, and methods that work towards 'design with nature' ·Final Revision speculates about prospects for twenty-first century river channel management. River Channel Management is written for higher-level undergraduates and for postgraduates in geography, ecology, engineering, planning, geology and environmental science, for professionals involved in river channel management, and for staff in environmental agencies.

Engineering And Microstructural Behaviour Of Lime Slag Treated Pyrite Bearing Coode Island Silt

Author: Binu Stanley
Size: 66.72 MB
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This research project focuses on understanding the engineering and micro-structural behaviour of lime-slag treated pyrite bearing Coode Island Silt. The poignant points of this experimental study were identification of thaumasite in stabilised soil and understanding the strength and compressibility behaviour of treated soil with curing. This form of sulfate attack (TSA) has not been reported on CIS or any other native Australian soils. Mineralogical studies using X-ray diffraction technique (XRD) and micro-structural study using Scanning Electron Microscopy (SEM) were used to identify thaumasite. The impact of thaumasite on the engineering behaviour was studied using vane shear, unconfined compressive strength test and 1-D consolidation test. The experimental results provided an insight into the fundamental mechanism of thaumasite formation and its impact on strength and stability of treated CIS. The aggressive nature of thaumasite formation with curing and its ability to impair the strength development by breaking the cementitious bonds is understood through USC study. This effect is evidenced through XRD and SEM studies which show the degradation of cementing gel C-S-H to form thaumasite. Different types of thaumasite were also identified through the SEM work. Compressibility of treated CIS reduces considerably and yield stresses achieved are the most profound evidence. However, the presence of pyrite in CIS changes the compressibility behaviour with curing. The outcome of this project will provide the ground for future works on Coode Island Silt and other native soils in Australia which come under the classification of Acid sulphate soils (ASS). Moreover, the impact of pyrite oxidation on existing infrastructure in these soils can be understood and remediation works can be planned.

Advances In Energy Equipment Science And Engineering

Author: Shiquan Zhou
Publisher: CRC Press
ISBN: 1315667983
Size: 25.33 MB
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Advances in Energy Equipment Science and Engineering contains selected papers from the 2015 International Conference on Energy Equipment Science and Engineering (ICEESE 2015, Guangzhou, China, 30-31 May 2015). The topics covered include: - Advanced design technology - Energy and chemical engineering - Energy and environmental engineering - Energy science and engineering - Manufacturing systems and automation - Mechanical engineering - New materials and advanced materials Advances in Energy Equipment Science and Engineering will be invaluable to engineers and professionals in Energy Science and Engineering.

Material Science And Environmental Engineering

Author: Ping Chen
Publisher: CRC Press
ISBN: 1315638533
Size: 50.88 MB
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Material Science and Environmental Engineering presents novel and fundamental advances in the fields of material science and environmental engineering, and will prove to be a valuable reference book to academics and professionals in these areas.

Comptes Rendus Du 15 Me Congr S Europ En De M Canique Des Sols De G Otechnique

Author: A. Anagnostopoulos
Publisher: IOS Press
ISBN: 1614991995
Size: 76.50 MB
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This publication contains the papers presented at the 15th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE), held in Athens, Greece. Considerable progress has been made in recent decades in understanding the engineering behavior of those hard soils and weak rocks that clearly fall into either the field of soil or of rock mechanics, and there have been important developments in design and construction methods to cope with them. Progress would be even more desirable, however, for those materials which fall into the ‘grey’ area between soils and rocks. They present particular challenges due to their diversity, the difficulties and problems arising in their identification and classification, their sampling and testing and in the establishment of suitable models to adequately describe their behavior. The publication aims to provide an updated overview of the existing worldwide knowledge of the geological features, engineering properties and behavior of such hard soils and weak rocks, with particular reference to the design and construction methods and problems associated with these materials. Part 4 was published post-conference and includes Conference Reports.

Solid Waste Assessment Monitoring And Remediation

Author: I. Twardowska
Publisher: Gulf Professional Publishing
ISBN: 9780080541471
Size: 35.61 MB
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This book covers a broad group of wastes, from biowaste to hazardous waste, but primarily the largest (by mass and volume) group of wastes that are not hazardous, but also are not inert, and are problematic for three major reasons: (1) they are difficult to manage because of their volume: usually they are used in civil engineering as a common fill etc., where they are exposed to environmental conditions almost the same way as at disposal sites; (2) they are not geochemically stable and in the different periods of environmental exposure undergo transformations that might add hazardous properties to the material that are not displayed when it is freshly generated; (3) many designers and researchers in different countries involved in waste management are often not aware of time-delayed adverse environmental impact of some large-volume waste, and also do not consider some positive properties that may extend the area of their environmentally beneficial application.