Download or read book Crystalline Silica In Construction Supplement written by National Safety Compliance Services Staff and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controlling Silica Exposures in Construction written by U. S. Labor and published by CreateSpace. This book was released on 2012-06-28 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidance document, OSHA 3362-04, Controlling Silica Exposures in Construction, addresses the control of employee exposures to respirable dust containing crystalline silica, which is known to cause silicosis, a serious lung disease, as well as increase the risk of lung cancer and other systemic diseases. This document provides information on the effectiveness of various engineering control approaches for several kinds of construction operations and equipment, and contains recommendations for work practices and respiratory protection, as appropriate. Quartz is the most common form of crystalline silica. In fact, it is the second most common surface material accounting for almost 12% by volume of the earth's crust. Quartz is present in many materials in the construction industry, such as brick and mortar, concrete, slate, dimensional stone (granite, sandstone), stone aggregate, tile, and sand used for blasting. Other construction materials that contain crystalline silica are asphalt filler, roofing granules, plastic composites, soils, and to a lesser extent, some wallboard joint compounds, paint, plaster, caulking and putty. Cristobalite, a less common form of crystalline silica, is formed at high temperatures (>1,470°C) in nature and by industrial processes. The ceramic and brick lining of boilers and vessels, some ceramic tiles, and volcanic ash contain cristobalite. The crystalline silica permissible exposure limit (PEL) for the construction industry at 29 CFR 1926.55(a) is expressed in terms of millions of particles per cubic foot (mppcf). This PEL is based on a particle count method long rendered obsolete by respirable mass (gravimetric) sampling, which yields results reported in milligrams per cubic meter (mg/m3). In contrast with the construction PEL, the crystalline silica PEL for general industry is based on gravimetric sampling, which is the only method currently available to OSHA compliance personnel. In this guidance, OSHA uses a benchmark 8-hour time-weighted average exposure of 0.1 mg/m3 of respirable silica dust as a point of reference in describing control measures utilized by the construction trades. OSHA is reviewing the construction and general industry PELs for silica in its ongoing silica rulemaking. The recommendations presented in this document are based on a review of information in the published literature, NIOSH In-Depth Survey Reports and OSHA inspection data. Engineering control evaluations reported in the published literature were generally performed in controlled work environments and may not reflect actual workplace exposures experienced at construction worksites. Moreover, potential silica exposure levels will depend on the concentration of silica in materials at construction sites, as well as factors in the work environment (such as enclosed, semi-enclosed, or open spaces and/or multiple operations generating silica dust) as well as environmental conditions (such as wind direction and speed). Therefore, OSHA encourages employers to conduct periodic exposure monitoring to confirm that engineering and work practice controls are effective and that appropriate respiratory protection is being used where necessary. Controls continue to evolve and OSHA encourages equipment suppliers and contractors to work with industrial hygienists to evaluate new designs and products to obtain objective information that can be used to evaluate performance and support informed decisions on use. If you choose to modify equipment, it is important to follow equipment manufacturers' recommendations in order to ensure that modifications do not adversely affect equipment performance and that no additional hazards are created. Furthermore, ground-fault circuit interrupters (GFCI) and water tight/sealable electrical connectors should be used with electric tools and equipment on construction sites (OSHA, 1996). These features are particularly important in areas where water is used to control dust.
Download or read book OSHA s Respirable Crystalline Silica Standard for Construction written by and published by . This book was released on 2017 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Respirable Crystalline Silica in Construction Training Booklet written by and published by . This book was released on 2016-08-22 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crystalline Silica Exposure written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Job Safety Health written by and published by . This book was released on 1975 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Practice for Controlling Occupational Exposure to Respirable Crystalline Silica for Construction and Demolition Activities written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Practice for Controlling Occupational Exposure to Respirable Crystalline Silica for Construction and Demolition Activities written by American Society for Testing and Materials and published by . This book was released on 2009 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Work related Lung Disease Surveillance Report written by and published by . This book was released on 1996 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cal OSHA Pocket Guide for the Construction Industry written by and published by . This book was released on 2015-01-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cal/OSHA Pocket Guide for the Construction Industry is a handy guide for workers, employers, supervisors, and safety personnel. This latest 2011 edition is a quick field reference that summarizes selected safety standards from the California Code of Regulations. The major subject headings are alphabetized and cross-referenced within the text, and it has a detailed index. Spiral bound, 8.5 x 5.5"
Download or read book Crystalline Silica written by Society for Mining, Metallurgy, and Exploration (U.S.) and published by SME. This book was released on 1998 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: In practical language, Crystalline Silica addresses what crystalline silica is, where it is found and used, and how it is identified. In addition, the book discusses the regulatory decisions yielding new interest in this ubiquitous substance and presents an overview of the techniques used to determine its presence and abundance. A list of selected readings and supplemental resources and a glossary of terms beyond the scope of this publication round out the text.
Download or read book Dangerous Construction written by Peter Ciechanowski and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silica is an essential component of rocks, soil, and sand, and it is the second most common mineral on earth. Epidemiological studies indicate that crystalline silica poses a health risk when inhaled. This is an important issue because exposure to crystalline silica is widespread among many occupations, such as mining and construction. Exposure to crystalline silica is a problem in both developed and developing nations. It is estimated that 3,200,000 and 1,700,000 workers are exposed annually in the European Union and United States, respectively. In Canada, almost 350,000 workers are exposed every year. This paper provides an encompassing detail of crystalline silica and its negative health effects. First, the chemical and immunopathological characteristics are introduced. Second, the characteristics of silica dust are explored in order to define its health hazard processes. Finally, this paper focuses on the construction industry and introduces ways to control and prevent crystalline silica exposure.
Download or read book Respirable Crystalline Silica in Construction Training Booklet Spanish written by National Safety Compliance and published by . This book was released on 2022-09-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Supplementary Cementing Materials written by Rafat Siddique and published by Springer Science & Business Media. This book was released on 2011-03-28 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an attempt to consolidate the published research related to the use of Supplementary Cementing Materials in cement and concrete. It comprises of five chapters. Each chapter is devoted to a particular supplementing cementing material. It is based on the literature/research findings published in journals/conference proceeding, etc. Topics covered in the book are; coal fly ash, silica fume (SF), granulated blast furnace slag (GGBS), metakaolin (MK), and rice husk ash (RHA). Each chapter contains introduction, properties of the waste material/by-product, its potential usage, and its effect on the properties of fresh and hardened concrete and other cement based materials.
Download or read book The Construction Chart Book written by CPWR--The Center for Construction Research and Training and published by Cpwr - The Center for Construction Research and Training. This book was released on 2008 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Construction Chart Book presents the most complete data available on all facets of the U.S. construction industry: economic, demographic, employment/income, education/training, and safety and health issues. The book presents this information in a series of 50 topics, each with a description of the subject matter and corresponding charts and graphs. The contents of The Construction Chart Book are relevant to owners, contractors, unions, workers, and other organizations affiliated with the construction industry, such as health providers and workers compensation insurance companies, as well as researchers, economists, trainers, safety and health professionals, and industry observers.
Download or read book Cementitious Materials written by Herbert Pöllmann and published by Walter de Gruyter GmbH & Co KG. This book was released on 2017-12-18 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aside from water the materials which are used by mankind in highest quantities arecementitious materials and concrete. This book shows how the quality of the technical product depends on mineral phases and their reactions during the hydration and strengthening process. Additives and admixtures infl uence the course of hydration and the properties. Options of reducing the CO2-production in cementitious materials are presented and numerous examples of unhydrous and hydrous phases and their formation conditions are discussed. This editorial work consists of four parts including cement composition and hydration, Special cement and binder mineral phases, Cementitious and binder materials, and Measurement and properties. Every part contains different contributions and covers a broad range within the area. Contents Part I: Cement composition and hydration Diffraction and crystallography applied to anhydrous cements Diffraction and crystallography applied to hydrating cements Synthesis of highly reactive pure cement phases Thermodynamic modelling of cement hydration: Portland cements – blended cements – calcium sulfoaluminate cements Part II: Special cement and binder mineral phases Role of hydrotalcite-type layered double hydroxides in delayed pozzolanic reactions and their bearing on mortar dating Setting control of CAC by substituted acetic acids and crystal structures of their calcium salts Crystallography and crystal chemistry of AFm phases related to cement chemistry Part III: Cementitious and binder materials Chemistry, design and application of hybrid alkali activated binders Binding materials based on calcium sulphates Magnesia building material (Sorel cement) – from basics to application New CO2-reduced cementitious systems Composition and properties of ternary binders Part IV: Measurement and properties Characterization of microstructural properties of Portland cements by analytical scanning electron microscopy Correlating XRD data with technological properties No cement production without refractories
Download or read book Crystalline Silica In General Industry Supplement written by and published by . This book was released on 1916 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
