Download or read book Una Introducci n a los Aditivos Qu micos para Concreto written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2019-10-23 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guía técnica introductoria para ingenieros civiles y estructurales y gerentes de construcción interesados en aditivos químicos para concreto. Esto es lo que se discute: 1. GENERAL 2. ADMISIONES DE ENTRETENIMIENTO DE AIRE 3. ADMISIÓN ACELERANTE 4. RECUPERACIÓN DE ADMIXTURES 5. ADMISIONES REDUCTORES DE AGUA 6. ADMISIONES DE REDUCCIÓN DE AGUA DE ALTO RANGO 7. ADMIXTURES ANTIWASHOUT 8. ADMIXTENS EXTENDIDOS POR CONTROL 9. ADMIXTURES ANTICONGELANTES

Download or read book Una Introducci n a los Aditivos Qu micos para Concreto written by J Paul Guyer and published by . This book was released on 2019-10-23 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guía técnica introductoria para ingenieros civiles y estructurales y gerentes de construcción interesados en aditivos químicos para concreto. Esto es lo que se discute:1. GENERAL2. ADMISIONES DE ENTRETENIMIENTO DE AIRE3. ADMISIÓN ACELERANTE4. RECUPERACIÓN DE ADMIXTURES5. ADMISIONES REDUCTORES DE AGUA6. ADMISIONES DE REDUCCIÓN DE AGUA DE ALTO RANGO7. ADMIXTURES ANTIWASHOUT8. ADMIXTENS EXTENDIDOS POR CONTROL9. ADMIXTURES ANTICONGELANTES

Download or read book Una Introducci n a los Aditivos Qu micos para Concreto An Introduction to Chemical Admixtures for Concrete written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2019-12-25 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guía técnica introductoria para ingenieros civiles y estructurales y gerentes de construcción interesados en aditivos químicos para concreto. ESTA PUBLICACIÓN CONTIENE AMBAS TRADUCCIONES EN ESPAÑOL Y LA VERSIÓN ORIGINAL EN INGLÉS DE ESTA GUÍA TÉCNICA Esto es lo que se discute: 1. GENERAL 2. ADMISIONES DE ENTRETENIMIENTO DE AIRE 3. ADMISIÓN ACELERANTE 4. RECUPERACIÓN DE ADMIXTURES 5. ADMISIONES REDUCTORES DE AGUA 6. ADMISIONES DE REDUCCIÓN DE AGUA DE ALTO RANGO ("SUPERPLASTIFICADORES"). 7. ADMIXTURES ANTIWASHOUT 8. ADMIXTENS EXTENDIDOS POR CONTROL 9. ADMIXTURES ANTICONGELANTES.

Download or read book Science and Technology of Concrete Admixtures written by Pierre-Claude Aïtcin and published by Woodhead Publishing. This book was released on 2015-11-12 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science and Technology of Concrete Admixtures presents admixtures from both a theoretical and practical point-of-view. The authors emphasize key concepts that can be used to better understand the working mechanisms of these products by presenting a concise overview on the fundamental behavior of Portland cement and hydraulic binders as well as their chemical admixtures, also discussing recent effects in concrete in terms of rheology, mechanics, durability, and sustainability, but never forgetting the fundamental role played by the water/binder ratio and proper curing in concrete technology. Part One presents basic knowledge on Portland cement and concrete, while Part Two deals with the chemical and physical background needed to better understand what admixtures are chemically, and through which mechanism they modify the properties of the fresh and hardened concrete. Subsequent sections present discussions on admixtures technology and two particular types of concrete, self-consolidating and ultra-high strength concretes, with final remarks on their future. Combines the knowledge of two leading authors to present both the scientific and technology of admixtures Explains what admixtures are from a chemical point-of-view and illustrates by which mechanisms they modify the properties of fresh and hardened concrete Presents a fundamental, practical, and innovative reference book on the topic Contains three detailed appendices that can be used to learn how to use admixtures more efficiently

Download or read book Advances in Flotation Technology written by B. K. Parekh and published by Society for Mining Metallurgy. This book was released on 1999 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers from a March 1999 conference held at the SME Annual Meeting in Denver, Colorado, describe significant developments in flotation technology. Papers are grouped in sections on flotation fundamentals, sulfides and precious metals, nonsulfide minerals, coal cleaning, equipment design and developm

Download or read book Indigenous Peoples food systems written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2021-06-25 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication provides an overview of the common and unique sustainability elements of Indigenous Peoples' food systems, in terms of natural resource management, access to the market, diet diversity, indigenous peoples’ governance systems, and links to traditional knowledge and indigenous languages. While enhancing the learning on Indigenous Peoples food systems, it will raise awareness on the need to enhance the protection of Indigenous Peoples' food systems as a source of livelihood for the 476 million indigenous inhabitants in the world, while contributing to the Zero Hunger Goal. In addition, the UN Decade of Action on Nutrition (2016-2025) and the UN Food Systems Summit call on the enhancement of sustainable food systems and on the importance of diversifying diets with nutritious foods, while broadening the existing food base and preserving biodiversity. This is a feature characteristic of Indigenous Peoples' food systems since hundreds of years, which can provide answers to the current debate on sustainable food systems and resilience.

Download or read book Superplasticizers written by Vangipuram Seshachar Ramachandran and published by Natural Resources Canada, Canada Centre for Mineral and Energy Technology. This book was released on 1997 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been prepared with the aim of integrating information about the chemistry and application of concrete superplasticizers in a manner relevant to concrete engineers and technologists. The opening chapter introduces basic aspects of concrete science as background for what follows. Chapters 2-4 discuss the chemical synthesis of superplasticizers, methods used to characterize those chemicals, and techniques for evaluation of their effect in cementitious systems. Subsequent chapters cover: the influence of superplasticizers on hydration of cement materials; rheology of cementitious systems; issues related to the mode of action and compatibility of superplasticizers; the effect of superplasticizers on fresh concrete; mechanical properties and durability of concrete; innovative applications of superplasticizers in concrete; superplasticizer dispensing, specifications, and standards; patents related to superplasticizers; and current and future trends in the use of superplasticizers in concrete.

Download or read book The Radiological Accident in Goi nia written by International Atomic Energy Agency and published by . This book was released on 1988 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Government and authorities in Brazil were faced with a tragic accident in Goiânia resulting from the misuse of a strongly radioactive medical teletherapy source not under radiation protection surveillance. The present report is divided into four parts: a chronology of destruction of the source, discovery of the accident and initial response; a description of the human consequences and the dosimetry and treatment of seriously exposed and contaminated persons; an account of the assessment of the environmental contamination and the remedial actions taken; and observations and recommendations. Appendices and annexes give an assessment of the effectiveness of international co-operation in the emergency response, and provide further information on: public communications; radiological survey equipment; guidelines for the discharge of patients; radiological protection; chemical decontamination; and the lessons learned.

Download or read book International Code of Conduct on Pesticide Management written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-09-03 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The understanding that some pesticides are more hazardous than others is well established. Recognition of this is reflected by the World Health Organization (WHO) Recommended Classification of Pesticides by Hazard, which was first published in 1975. The document classifies pesticides in one of five hazard classes according to their acute toxicity. In 2002, the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) was introduced, which in addition to acute toxicity also provides classification of chemicals according to their chronic health hazards and environmental hazards.

Download or read book Sustainable Construction and Building Materials written by Bibhuti Bhusan Das and published by Springer. This book was released on 2018-12-30 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the International Conference on Sustainable Construction and Building Materials (ICSCBM 2018), and examines a range of durable, energy-efficient, and next-generation construction and building materials produced from industrial wastes and byproducts. The topics covered include alternative, eco-friendly construction and building materials, next-generation concretes, energy efficiency in construction, and sustainability in construction project management. The book also discusses various properties and performance attributes of modern-age concretes including their durability, workability, and carbon footprint. As such, it offers a valuable reference for beginners, researchers, and professionals interested in sustainable construction and allied fields.

Download or read book Radiation in Art and Archeometry written by D.C. Creagh and published by Elsevier. This book was released on 2000-06-14 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: /inca/publications/misc/creaghcov.htmAbout the cover This book contains twenty chapters covering a wide range of research in the fields of scientific conservation of art and archaeometry. The common thread is the use of radiation in these analyses. The term "radiation" is used in the widest possible sense. The book encompasses the use of electromagnetic radiation in its microwave, infrared, visible, ultraviolet, x ray and &ggr; ray forms and the use of particulate forms such as electrons, neutrons and charged particles for which the Planck's Law relation applies. In many cases there is an interplay between the two forms: for example, proton induced x ray emission (PIXE), secondary ion mass spectrometry (SIMS). As far as possible the chapters have been arranged in order of ascending particle energy. Thus it commences with the use of microwaves and finishes with the use of &ggr; rays. The authors were chosen on the basis of their expertise as practitioners of their particular field of study. This means that, for example, the mature fields of study such as the IR and UV study of paintings have been written by senior researchers, whereas for the emerging fields of synchrotron and neutron techniques the chapters have been written by talented researchers at the commencement of their careers.

Download or read book Occupational Safety and Hygiene written by Pedro Arezes and published by CRC Press. This book was released on 2013-04-04 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Occupational Safety and Hygiene presents selected papers from the International Symposium on Occupational Safety and Hygiene – SHO2013 (Guimarães, Portugal, 14-15 February 2013), which was organized by the Portuguese Society for Occupational Safety and Hygiene (SPOSHO). The contributions from 15 different countries focus on: - Occupational safety - Risk assessment - Safety management - Ergonomics - Management systems - Environmental ergonomics - Physical environments - Construction safety - Human factors The papers included in the book are mainly based on research carried out at universities and other research institutions, but they are also based on practical studies developed by Occupational Health & Safety (OHS) practitioners within their companies. As a result, this book will be useful to get acquainted with the state-of-the-art of the research within the aforementioned domains, as well as with some practical tools and approaches that are currently used by OHS professionals worldwide.

Download or read book Calcined Clays for Sustainable Concrete written by Fernando Martirena and published by Springer. This book was released on 2017-10-27 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on research and practical issues linked to Calcined Clays for Sustainable Concrete. The main topics are geology of clays, hydration and performance of blended system with calcined clays, alkali activated binders, applications in concrete and mortar, durability of concrete under various aggressive conditions, and economic and environmental impacts of the use of calcined clays in cement based materials. This book compiles the different contributions of the 2nd International Conference on Calcined Clays for Sustainable Concrete, which took place in La Habana, December 5th-7th, 2017.The papers update the latest research in their field, carried out since the last conference in 2015. Overall it gives a broad view of research on calcined clays and their application in the field of construction, which will stimulate further research into calcined clays for sustainable concrete.

Download or read book Strategies for testing and assessment of concrete structures guidance report written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1998-05-01 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Reuse written by Metcalf & Eddy, Inc., an AECOM Company and published by McGraw Hill Professional. This book was released on 2007-02-05 with total page 1610 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Integrated Approach to Managing the World's Water Resources Water Reuse: Issues, Technologies, and Applications equips water/wastewater students, engineers, scientists, and professionals with a definitive account of the latest water reclamation, recycling, and reuse theory and practice. This landmark textbook presents an integrated approach to all aspects of water reuse _ from public health protection to water quality criteria and regulations to advanced technology to implementation issues. Filled with over 500 detailed illustrations and photographs, Water Reuse: Issues, Technology, and Applications features: In-depth coverage of cutting-edge water reclamation and reuse applications Current issues and developments in public health and environmental protection criteria, regulations, and risk management Review of current advanced treatment technologies, new developments, and practices Special emphasis on process reliability and multiple barrier concepts approach Consideration of satellite and decentralized water reuse facilities Consideration of planning and public participation of water reuse Inside This Landmark Water/Wastewater Management Tool • Water Reuse: An Introduction • Health and Environmental Concerns in Water Reuse • Technologies and Systems for Water Reclamation and Reuse • Water Reuse Applications • Implementing Water Reuse

Download or read book Iron Ore Flotation written by Mark Ma and published by Nova Novinka. This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbiology as a science has expanded by leaps and bounds in the past few decades due to advancements in sophisticated instrumentation and recombinant DNA technology which added new dimension and revealed the understanding of the subject at a molecular level. This has resulted in the emergence of several applications of this domain. This book have been complied with the help of leading Microbiologists from India and other countries with an objective of providing current developments in the field of Microbiology. This book will be useful for under and postgraduate students, academicians, researchers and laboratory personnel from disciplines like Microbiology, Biochemistry, Veterinary Science, Medicine, Pharmacy, Agriculture, Food Science, Environmental Science, Industrial Microbiology and other allied Biological Sciences.

Download or read book Phosphorus in Environmental Technology written by E. Valsami-Jones and published by IWA Publishing. This book was released on 2004-05-31 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus in Environmental Technology: Principles and Applications, provides a definitive and detailed presentation of state-of-the-art knowledge on the environmental behaviour of phosphorus and its applications to the treatment of waters and soils. Special attention is given to phosphorus removal for recovery technologies, a concept that has emerged over the past 5-6 years. The book features an all-encompassing approach: the fundamental science of phosphorus (chemistry, geochemistry, mineralogy, biology), key aspects of its environmental behaviour and mobility, industrial applications (treatment, removal, recovery) and the principles behind such applications, novel biotechnologies and, importantly, it also addresses socio-economic issues which often influence implementation and the ultimate success of any new technology. A detailed subject index helps the reader to find their way through the different scientific and technological aspects covered, making it an invaluable reference work for students, professionals and consultants dealing with phosphorus-related environmental technologies. State-of-the-art knowledge on the behaviour of phosphorus and its applications to environmental science and technology. Covers all aspects of phosphorus in the environment, engineered and biological systems; an interdisciplinary text.