Measuring the Kinetics of Iron-Sulfide Mineral Oxidation Through Dissolution Reactant Systems PDF Download
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Author: Angelica Sarah Hunt Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
The issue of iron-sulfide degradation in concrete aggregates has proven to be a major problem in concrete infrastructure, causing insufficient concrete durability and extensive structural damages which include expansion, cracking, and popouts. Over the years, there have been various reports of iron-sulfide minerals like pyrite and pyrrhotite causing oxidation reactions and leading to extensive residential concrete foundation damage in Connecticut and Quebec, Canada. In many of these cases, damages have been so serious to the structural integrity of the structures that immediate remediation has been required to repair the deterioration. The issue is not well documented despite reports of damage in the United States, Canada, and parts of Europe. Currently, there are limited existing standardized testing methods or mitigation strategies for the presence of iron-sulfide minerals in concrete aggregates because the mechanisms by which degradation occurs are not fully understood. The objective of this research is to experimentally measure the kinetics of iron-sulfide oxidation reactions in dissolution systems with oxidizing agents and analyze existing dissolution rate data available to assist in determining the factors that influence the deterioration of aggregates used in concrete infrastructure.
Author: Angelica Sarah Hunt Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
The issue of iron-sulfide degradation in concrete aggregates has proven to be a major problem in concrete infrastructure, causing insufficient concrete durability and extensive structural damages which include expansion, cracking, and popouts. Over the years, there have been various reports of iron-sulfide minerals like pyrite and pyrrhotite causing oxidation reactions and leading to extensive residential concrete foundation damage in Connecticut and Quebec, Canada. In many of these cases, damages have been so serious to the structural integrity of the structures that immediate remediation has been required to repair the deterioration. The issue is not well documented despite reports of damage in the United States, Canada, and parts of Europe. Currently, there are limited existing standardized testing methods or mitigation strategies for the presence of iron-sulfide minerals in concrete aggregates because the mechanisms by which degradation occurs are not fully understood. The objective of this research is to experimentally measure the kinetics of iron-sulfide oxidation reactions in dissolution systems with oxidizing agents and analyze existing dissolution rate data available to assist in determining the factors that influence the deterioration of aggregates used in concrete infrastructure.
Author: A Abramov Publisher: CRC Press ISBN: 9789056995706 Category : Science Languages : en Pages : 336
Book Description
Results of recent experimental studies and modern theoretical concepts are combined in this volume to provide a comprehensive analysis of sulfide mineral oxidation processes. Introductory chapters discuss the properties of sulfide minerals and various investigative techniques, followed by chapters on oxidation mechanisms and the behavior of minerals under these various oxidizing conditions. This book also demonstrates modern methods of physical-chemical modelling and the regulation and optimization of flotation processes.
Author: Publisher: ISBN: Category : Ferrous sulfide Languages : en Pages : 424
Book Description
The study of the kinetics of oxidation of the ferrous monosulfide mackinawite and the fate of the associated heavy metals are important to a better understanding of the processes and mechanisms controlling the release, transport and retention of heavy metals in natural aquatic systems. This project undertook a detailed study of several selected aspects of the aqueous chemistry of heavy metals and of the oxidative dissolution of FeS(s) and the fate of associated heavy metals both during and after the oxidation reaction. The material is organized into sections dealing with the basic aqueous chemistry of iron and sulfur, silver, cadmium, adsorption models, experimental methodology, results and discussion.
Author: David Rickard Publisher: Newnes ISBN: 0080931839 Category : Science Languages : en Pages : 813
Book Description
This book deals with sedimentary sulfides which are the most abundant authigenic minerals in sediments. Special emphasis is given to the biogeochemistry that plays such a central role in the formation of sedimentary sulfides. It will be of interest to scientists in a number of disciplines, including geology, microbiology, chemistry and environmental science. The sulfur system is important to environmental scientists considering the present and future effects of pollution and anoxia. The development of the sulfur system – particularly the characteristics of ocean anoxia over the last 200 Ma – is useful in predicting the future fate of the Earth surface system as well as in understanding the past. The biochemistry and microbiology of the sulfur system are key to understanding microbial ecology and the evolution of life. - First monograph on sedimentary sulfides, covering the ancient and modern sedimentary sulfide systems - Comprehensive, integrating chemistry, microbiology, geology and environmental science - All key references are included and discussed
Author: PatrickL. Brezonik Publisher: Routledge ISBN: 1351461508 Category : Science Languages : en Pages : 784
Book Description
Chemical Kinetics and Process Dynamics in Aquatic Systems is devoted to chemical reactions and biogeochemical processes in aquatic systems. The book provides a thorough analysis of the principles, mathematics, and analytical tools used in chemical, microbial, and reactor kinetics. It also presents a comprehensive, up-to-date description of the kinetics of important chemical processes in aquatic environments. Aquatic photochemistry and correlation methods (e.g., LFERs and QSARs) to predict process rates are covered. Numerous examples are included, and each chapter has a detailed bibliography and problems sets. The book will be an excellent text/reference for professionals and students in such fields as aquatic chemistry, limnology, aqueous geochemistry, microbial ecology, marine science, environmental and water resources engineering, and geochemistry.
Author: Angelica Sarah Hunt
Author: Angelica Sarah Hunt
Author: Donald Frank Lowe
Author: A Abramov
Author: 
Author: Michael B. Nelson
Author: Michael R. Hoffmann
Author: David Rickard
Author: John Nathan Ong
Author: Simon Piché
Author: PatrickL. Brezonik