news image

Curing Concrete Dos and Don'ts - Bob Vila

Wet the concrete thoroughly, and then cover it with the sheeting of your choice, using bricks, rocks, or other heavy items to hold it in place. Remove the sheeting or blanket daily, wet the...

news image

Floor Grinder Operating Manual

Grinding/cutting/drilling of masonry, concrete and other materials containing silica may generate dust or mists containing crystalline silica. Silica is a basic component of sand, quartz, brick clay, granite and numerous other minerals and rocks. Repeated and/or substantial inhalation of airborne crystalline silica can

news image

Silica Dust Protection From Bosch and 3M | Acme Tools

Aug 09, 2017· Grinding, Cutting, and Tuckpointing Solutions. If prevention and protection during concrete grinding and tuck pointing is your concern, Bosch still has you covered. The 18SG-5E small angle grinder guard allows for connecting a dust extractor for your surface grinding needs. If you are into cutting concrete you will be happy to know that Bosch ...

news image

Concrete Grinders | Corded Tools | Total Tools

Concrete Grinders at Total Tools. 80+ stores nationwide & access to over 60,000 Tools online. Every Tool, Every Trade.

news image

Evaluation of Misting Controls to Reduce Respirable Silica ...

Estimates of dust reduction showed that low-misting nozzles reduced the respirable mass fraction of dust by about 63%, medium-misting nozzles by about 67%, high-misting nozzles by about 79% and freely flowing water by about 93%.

news image

How to Control Dust When Cutting Concrete | MegaSaw

During the cutting, grinding or drilling process, the mineral is broken into fine dust which is referred to as silica dust. Non-silica dust Although silica is the main component of most materials used for construction, there are a few that don't contain the product or the content is very little.

news image

The Dusty Dangers of Concrete Cutting & Grinding ...

Concrete cutting and concrete grinding are very dusty jobs in the construction industry, both posing a serious health risk to masons. Masonry blocks, bricks, and concrete slabs contain concentrated amounts of crystalline silica. When these materials are dry-cut they release silica containing dust into the workers' breathing zone. Regular exposure to this hazardous dust can

news image

CIS54 - Dust control on cut-off saws used for stone or ...

dust. This dust will contain some very fine dust called respirable crystalline silica (RCS). Exposure to RCS dust can cause serious health problems which may eventually prove to be fatal. Health effects Stones, rocks, sands and clays can contain large amounts of crystalline silica and are used to make kerbs, flags, bricks, tiles and concrete.

news image

concrete dust, trouble breathing / advice

Jun 23, 2009· good advice I guess im lucky in that Ive always suffered from allergies so anytime there's something even slightly dusty I always have a mask or respirator on because my sinuses would go start going crazy otherwise. Ive seen hubby in the past cutting bricks and concrete outside and Ive done my nut at him and made him put a mask on because it's amazing how much dust comes off concrete .

news image

eLCOSH : Water Spray Control of Hazardous Dust When ...

Workers in the construction industry may breathe dust that contains crystalline silica during many tasks including grinding concrete, cutting brick and block, tuckpointing masonry, or using a jackhammer to break concrete. ... (Figure 1) to suppress dust created during concrete pavement breaking with jackhammers [Echt et al. 2003]. This low-flow ...

news image

Dust Control Solutions for Stone Fabrication

When considering to stone fabrication work, the importance of top-notch dust control solutions cannot be overlooked. At GranQuartz, we maintain a great array of dust control solutions, which includes dust shrouds, dust hoods, vacuums, and more.. As well as top-notch dust .

news image

Controlling Silica Dust – Learning from Each Other ...

Controlling Silica Dust – Learning from Each Other Videos. Tuckpointing Shroud (approximately 1 minute); Tools of the Trade --Demonstration of the Dust Director Shroud attached to a Metabo grinder "that allows masons to remove mortar without creating choking clouds of dust.

news image

Dust Control & Suppression With Fog - Microcool Blog

'Water-based dust suppression (misting or spray) systems used to "knock down" dust. Different types of systems are available. They typically involve a piping system with an array of nozzles aimed to deliver a fine spray to the area where dust is likely to be generated (e.g., over the surge pit).

news image

Grinding concrete and dust issues | The Floor Pro Community

Feb 12, 2011· I may need to do some grinding on a concrete floor to take down a couple of high spots. I looked at a 4 1/2" Makita variable speed angle grinder and a diamond cup wheel for it. I have an old Ryobi angle grinder but wondering if variable speed would be good to control the grinding and the dust collection. The Makita has a bit more power too.

news image

Control of Hazardous Dust During Tuckpointing

posed to hazardous dust when grinding or cutting mortar or ce-ment from between the bricks of old buildings. The National Insti-tute for Occupational Safety and Health (NIOSH) found that ex-posures could be reduced using tool-mounted local exhaust ven-tilation and work practices. Figure 1.

news image

Evaluation of Misting Controls to Reduce Respirable Silica ...

Solid-red patio brick (5.7 cm × 9.2 cm × 19 cm, General Shale Brick, Johnson City, TN) from a single batch was used for all experiments. As the saw cut the brick, creating dust, different levels of water mist were sprayed on the brick and saw. The mist was produced by brass atomizing nozzles (Spraying Systems Co., Inc., Wheaton, IL).

news image

Q&A: OSHA Regulations On Concrete Silica Dust

Q&A: OSHA Regulations On Concrete Silica Dust. The U.S Department of Labor will start enforcing its new concrete silica dust ruling for construction on September 23, 2017 (moved from June 23, 2017). With those new OSHA regulations coming up, it's important to be up to date on all the new changes regarding the OSHA standards.

news image

eLCOSH : Water Spray Control of Hazardous Dust When ...

Workers in the construction industry may breathe dust that contains crystalline silica during many tasks including grinding concrete, cutting brick and block, tuckpointing masonry, or using a jackhammer to break concrete. ... (Figure 1) to suppress dust created during concrete pavement breaking with jackhammers [Echt et al. 2003]. This low-flow ...

news image

flooring - Thicker epoxy rather than grinding concrete ...

Grinding with water will make a sticky slurry or paste but zero dust. Don't leave it to dry though. Dilute the paste with just enough water to be able to push it around with a fine broom or a squeegee and pick it .

news image

Dry Cutting and Grinding is Risky Business

cuts or grinds concrete, brick, or stone is not just harmless dust... It contains crystalline silica... and IT CAN KILL. Most crystalline silica is in the form of quartz. Common sand is almost 100% quartz. Fine particles created by cutting and grinding can get deep into the lungs. Most concrete and masonry products contain large amounts of sand.

news image

Is exposure to airborne concrete, stone, brick, or granite ...

Dec 08, 2015· Is exposure to airborne concrete, stone, brick, or granite dust hazardous to my health? Posted December 8, 2015 by Jim Orr. Federal and state authorities have passed laws requiring workers who cut or grind materials such as concrete, brick, stone, or granite to wear respirators or other devices designed to protect them from breathing in these materials.

news image

Diamond Glitter Bits - Router bits for grinding concrete ...

Attaches to the neck of a Makita Die Grinder for dust-free concrete & masonry grinding. Complete bit visibility still maintained . . . Glitter Bit – Brick Dust Controller. A 1-1/2″ diameter vacuum hose is held loosely but securely in place by the dust controller attachment. Dust is effectively captured as you move the Glitter Bit around the ...

news image

Controlling Silica Dust – Learning from Each Other ...

Controlling Silica Dust – Learning from Each Other Videos. Tuckpointing Shroud (approximately 1 minute); Tools of the Trade --Demonstration of the Dust Director Shroud attached to a Metabo grinder "that allows masons to remove mortar without creating choking clouds of dust.". Silica Control in Construction.wmv (approximately 4 minutes); Georgia Tech's Safety and Health .

news image

Dust Control & Suppression With Fog - Microcool Blog

An atomized fog system can control dust for many factory, waste management and production environments without over-wetting the environment like other mist systems. Given the smaller particle size, fog effectively tackles dust particles, containing the 'cloud' effect dust can create. Mist Systems Effectively Reduce Dust Summer can be a time when dust plays a larger Continue Reading »