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2013 Annual Summary Report, CPWR-The Center for Construction Research & TrainingPI: Pete Stafford – pstafford@cpwr.com; NIOSH Cooperative Agreement U60OH009762Introduction2013 was a very productive year for CPWR’s National Construction Center. In the fourth year ofits five-year cooperative agreement as the CDC/NIOSH-funded construction research center,CPWR continued more than 15 multi-year research projects and increased outreach activities toits industry partners. In addition to continuance of the high volume of independent constructionsafety and health research, in 2013 our National Construction Research Center planned andhosted two national workshops; reorganized its Construction Economics Research Network(CERN) as a separate entity-Institute for Construction Economics Research (ICERES)-the firstorganization to be created out of one of our National Construction Center networks as its ownnot-for-profit with direct industry governance and funding; published the 5th edition of theConstruction Chart Book, tool box talks, hazard alerts, guides and other materials; continued todevelop its standing websites, such as www.elcosh.org (our electronic library that serves as thenational repository for safety and health information and is the premier online source for theindustry, which in 2013 surpassed over 15 million page views since its inception in 2000),www.cpwrconstructionsolutions.org, www.silica-safe.org; continued as a key partner withNIOSH and OSHA in the national construction falls fatalities campaign, maintaining the mainwebsite for the campaign, www.stopconstructionfalls.com; and funded 11 new researchprojects under our Small Studies Program.2013 Small StudiesSafety management in the construction industry, McGraw Hill ConstructionUpdated analysis of morbidity and mortality among sheet metal workers, Duke UniversityUse and re-use of formwork: Safety risk and reliability assessment, Oregon State UniversityEvaluating fall safety compliance among skilled trades in construction, George Washington UniversityThe effects of injury and illness prevention programs and associated regulations on State level injury incidence, University of UtahFall protection resource for new home construction, Washington University School of Medicine in St. LouisSafety and building information modeling (BIM): Pilot project on early fall hazard detection and prevention in construction design andplanning, Georgia TechEffects of selected eye wear on the noise insertion loss of selected earmuffs, University of Puerto RicoUsing social media to inform Latino construction workers about fall protection, PhilaPOSHSafety benefits of mandatory OSHA 10-hour training, University of TennesseeConnection between lean design/construction and construction worker safety, Oregon State UniversityDetailed information about all of the projects and activities of our National Construction Centercan be found on our website, www.cpwr.com.Below are selected highlights of the National Construction Center’s 2013 research activities,accomplishments, findings, and products.r2p RoadmappingAs the leader in r2p for the NIOSH constructionresearch program, in 2013 the National ConstructionCenter’s r2p team completed and refined a“Research Dissemination Roadmap” to guide CPWRinvestigators and research consortium partners asthey plan how to promote the use of their findings.Researchers are urged to consider-among otherthings-their “cargo” (the intervention or findings to bedelivered), their “point of departure” (disseminationsteps already taken), “local guides” (knowledgeable
local partners who can help in the r2p effort), and the best “vehicles” for the journey(dissemination strategies that will be the most effective).All of the National Construction Center project investigators will go through the road mappingprocess. The roadmapping guide is also available to any investigators interested in using it, andcan be found on CPWR’s website, www.cpwr.com. In support of the NIOSH intramuralconstruction res
In collaboration with NIOSH, which developed initial content, CPWR produced 52 new toolbox talks on common construction hazards in 2013. For topics from aerial lifts to eye protection, we have combined a clear and simple graphic on one side of the page with a brief, interact
and Other Non-Crystalline Forms . CAS Registry Numbers: 7631-86-9 (synthetic amorphous silica) 60676-86-0 (fused) 69012-64-2 (silica fume) 61790-53-2 (uncalcined diatomaceous earth) 112945-52-5 (pyrogenic colloidal silica) 112926-00-8 (precipitated silica and silica gel) Prepared by . Jong-
U.S. SILICA COMPANY Safety Data Sheet Silica Sand, Ground Silica and Fine Ground Silica Page 4 of 10 Appropriate engineering controls: Use adequate general or local exhaust ventilation to maintain concentrations in the workplace below the applicable exposure limits listed above.
Production of Fused Silica Wafers Manufacture of Fused Silica A method for producing fused silica wafers is the melt-ing and subsequent re-solidifying of ultra-pure quartz. Synthetic fused silica is made from gases such as SiCl 4 which is oxidized in a H 2 O 2 atmosphere. The SiO 2 dust formed hereby is
Fig.2 Fly Ash Fig. 3 SILICA FUME i. Silica Fume: Silica fume is a byproduct of producing silicon metal or ferrosilicon alloys. One of the most beneficial uses for silica fume is in concrete. Because of its chemical and physical properties, it is a very reactive pozzolan. Concrete containing silica
from methanol based colloidal silica and (c) film from methyl ethyl ketone (MEK) based silica. T. Watanabe, et al, “Processing of roughened silica film by coagulated colloidal silica for super-dydrophobic coatng” . used as containers for milk, juice, ice cream, fast food, food
core (a) and pure silica (c) nanoparticles used in these experiments. A closer view of TEM images of few nanoparticles (silica-shell/Au-core (b) and pure silica (d)) which shows uniform thickness of the silica capping layer covering Au nanoparticle core par
Hootan (1993)3 reported that for silica fume concrete split tensile strength increases only at 28 days. Rao (2003)4 studied effect of silica fume on cement pastes. He observed that consistency of cement increase with increase in silica fume content .Alshamsi et al (1993)5 concluded that addit
An expert meeting was held to review the impact of animal nutrition on animal welfare. During the meeting, three major tasks were undertaken for both ruminant and monogastric species: 1) Identify feeding options for different livestock production systems (extensive, mixed crop-livestock, and intensive) that improve animal welfare while increas - ing profitability of the livestock producers and .
