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Implications Of Pyrite Oxidation For Engineering Works

Author: A. Brian Hawkins
Publisher: Springer Science & Business Media
ISBN: 331900221X
Size: 52.81 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.

Iaeg Aeg Annual Meeting Proceedings San Francisco California 2018 Volume 2

Author: Abdul Shakoor
Publisher: Springer
ISBN: 331993127X
Size: 38.21 MB
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This book is one out six IAEG XIII Congress and AEG 61st Annual Meeting proceeding volumes, and deals with topics related to the geotechnical and environmental site characterization. The theme of the IAEG/AEG Meeting, held in San Francisco from September 17-21, 2018, is Engineering Geology for a Sustainable World. The meeting proceedings analyze the dynamic role of engineering geology in our changing world. The meeting topics and subject areas of the six volumes are: Slope Stability: Case Histories, Landslide Mapping, Emerging Technologies; Geotechnical and Environmental Site Characterization; Mining, Aggregates, Karst; Dams, Tunnels, Groundwater Resources, Climate Change; Geologic Hazards: Earthquakes, Land Subsidence, Coastal Hazards, and Emergency Response; and Advances in Engineering Geology: Education, Soil and Rock Properties, Modeling.

Hydrometallurgy 2008

Author: Courtney A. Young
Publisher: SME
ISBN: 0873352661
Size: 64.46 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."

Ground Chemistry Implications For Construction

Author: A.B. Hawkins
Publisher: CRC Press
ISBN: 9789054108665
Size: 26.51 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.

River Channel Management

Author: Peter Downs
Publisher: Routledge
ISBN: 1444119079
Size: 63.60 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: 57.99 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.


Author: American Institute of Mining, Metallurgical, and Petroleum Engineers
Size: 34.85 MB
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Some vols., 1920-1949, contain collections of papers according to subject.