CONTRACTOR - White Cap Construction Supply
FROM THETRADECENTERNew DirectioNs iN Dust coNtrolAvoid dust to protect against health hazards.Anyone who works with cement or concreteshould be aware of the potential healthhazards and take precautions to avoidserious health risks. Airborne dust frommixing, cutting, and grinding concretecontains crystalline silica and poses avariety of threats.•Eye irritation. Depending on the level ofexposure, effects can range from rednessto chemical burns and blindness.•Nose and throat irritation. Over theshort term, inhaling high levels ofconcrete dust can cause choking anddifficulty breathing.•Chronic respiratory disease. Over thelong term, construction dust exposure canlead to chronic bronchitis, emphysema,or silicosis, a severely disabling and oftenfatal lung disease. Some studies suggesta link between crystalline silica inhalationand lung cancer.Personal protective equipment can reduceexposure, as long as equipment is chosen,fitted, and used properly. OSHA issuesstandards for Respiratory Protection(29 CFR 1910.134) and Eye and FaceProtection (29 CFR 1926.102). Althoughfollowing these guidelines is a step towardensuring workers’ safety, current thinkingand newer workplace safety codes suggestit’s also necessary to use engineeringcontrols on power tools to collect anddispose of dust. This is especially importantfor dust-intensive operations such as cuttingand grinding.In 2001, the National Institute forOccupational Safety and Health (NIOSH)studied workers grinding concrete surfacesand learned their exposure to airborne dustcontaining crystalline silica was 35 to 55times the recommended exposure limit.Manufacturers are introducing dust extractionattachments for a range of power tools such asrotary hammers and hammer drills. DeWalt’s DustExtraction System with HEPA Filter is pictured.In 2002, NIOSH evaluated the use of localexhaust ventilation shrouds on handheldconcrete grinders to determine whetherthey reduce dust exposure. Four differentcommercially available shrouds wereconnected by a flexible hose to a portablevacuum cleaner and tested while smoothingconcrete walls. All the grinder/shroudcombinations reduced dust exposureby more than 90 percent.Clearly, dust shrouds and vacuum systemsplay a role in promoting safety and health aswell as aiding jobsite housekeeping.CSDA’S SiliCA initiAtiveThe Concrete Sawing and DrillingAssociation (CSDA), Clearwater, Fla.,educates its members and others inthe industry about reducing the risks ofairborne silica exposure. In 2008, throughthe CSDA/OSHA Alliance program, itpublished “Reducing Silica Exposure”(CSDA-OBP-1002), a document outliningbest practices for sawing and drillingoperations. Available on the CSDAwebsite, the document stresses wet-cuttingwhenever possible, training employeeson the proper use of engineering controlsto reduce airborne dust, and usingrespirators and personal protectiveequipment to limit exposure.The CSDA also solicited silica exposuretest data from its members and compileda spreadsheet documenting test resultsfrom almost 100 actual jobsites. The datarepresents a range of projects, includingindoor and outdoor wall sawing, wet anddry slab sawing, core drilling, green sawing,concrete demolition, and more.Safer Work PracticesSupplement engineering controls, such as localexhaust ventilation, with good work practices forcontrolling silica exposure.• Routinely maintain dust controls on tools andequipment.• Do not use dust-generating tools, such as sawsand grinders, near other workers.• Stand so that dusty air will not blow on you andother workers.• Remove dust from clothes and other contaminatedsurfaces using a vacuum with a high-efficiency filter.• Wear disposable or washable protective clothing.• Do not use compressed air to clean yourself, yourclothes, or your equipment.• Do not shake or slap dust off of clothing.• Shower (if possible) and change into clean clothesbefore leaving the worksite.• Wash your hands before eating, drinking, smoking,and going to the toilet.• Eat, drink, and smoke away from the dusty area.• Park cars where they will not be contaminatedwith silica dust.This issue’s article, by Kenneth A. Hooker, was excerpted from Concrete Construction. Read the full article on concreteconstruction.net.32www.WhiteCap.com 1.800.944.8322Prices effective thru 5/31/2013.
Pro-Contractor continuing educationtrAining to meet Your neeDSWhite Cap’s Training and Development (TRADE) Center is an online resourcewhere associates can access product application training courses. This trainingarms our employees with industry knowledge so they can provide you with thebest service. Here’s what employees are saying about the program:WHITE CAP: ALWAYS ON THE JOB ®“Overall, ‘Elements of Design and Construction’ was an excellent course.Content was presented clearly, covering a wide range of topics. Courseassessment tests were presented in a timely fashion. I intend to retakecourses on a regular basis to keep my product knowledge level on target.Knowing answers to questions that customers pose is a good thing.These courses help!”Anthony Gasper, Market Sales Specialist, Baltimore, Md.mark DerricoAccount Manager28 years in the industrySpecialty: Industrial Commercial; Mechanical,Electrical and Plumbing“My recent course was very informative. Mybackground is MEP, so this was very helpful.”Chuck Bechtold, Market Sales Specialist, ElkGrove Village, Ill.White Cap partners with the followingsuppliers as core manufacturers of productsused in the containment of silica and otherairborne contaminants:“By taking the ‘Anchors and Fasteners’ course,I was able to learn the different types ofanchors and their applications.”Nicolas Castagna, Branch Operations Manager,Gilbert, Ill.White Cap offers the followingcontainment products for silica andother airborne contaminants:• Air systems• Carpet masks• Confined spaceproducts• Dust shields• Gas monitors• Industrial vacuums• Negative air products• Respirators• Surface protectionproducts• Tool shrouds• Zip wallsCleAn SeAtSAccount manager Mark Derrico’s customerbid a job to replace 19,000 seats at a highprofileentertainment venue while minimizingthe potential hazard from lead and otherairborne contaminants and keeping existingconcrete as clean as possible.“After walking the job, we found that the seatshad painted metal frames that attached tothe concrete with wedge anchors. Theseframes had been painted and contained leadin the paint. We knew at that time that thisjob contained airborne contaminants, soeveryone had to work in a full-body Tyveksuit. Half-mask respirators, safety goggles,hard hats, and safety gloves were to beworn at all times for the workers’ protection.“The bolts were not in direct contact withthe lead, but due to the proximity of thebolts and the particulates in the air, personalprotective equipment was required. After allthe seats had been removed and every boltwas above the surface level, the hygienistwent around and spot checked with aspecial wipe for lead particulates. A HEPAvacuum was used to remove theremaining chips.”ProDuCt KnowleDge ChAmPionSWhen it comes to product expertise, there’s no match forWhite Cap’s Product Knowledge Champions (PKCs). Withyears of background and experience in their specialtyfield, these experts can provide the answers to producttechnical questions prior to your purchase. Find your localChampion at www.whitecap.com.Because Mark’s solution left any lead-basedmaterial in a solid, undisturbed state, thecost of the job was far less than if the leadhad been disturbed. Mark’s customer wasvery happy with the cost savings and withthe safe and contained jobsite.White Cap: Always on the job ®33Prices effective thru 5/31/2013. 1.800.944.8322 MAY 2013