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Concrete Casting News from the Hill and Griffith Company

Myke Amend

Myke's skills are Marketing, Media Relations, and Internet Development, and he works for The Hill & Griffith Company through Lohre and Associates, Inc. - a full-service Marketing, Advertising Design, Media Relations, and Web Development agency located in Cincinnati, Ohio.

Recent Posts

Don't Jump to Any Rash Conclusions - Precast Concrete Safety

Posted by Myke Amend on Sep 20, 2016 3:16:00 PM

precast safety article image: Don't jump to any rash conclusions

Understand what causes rashes in the concrete industry and how to prevent them.

-by Bob Waterloo

Think about summer in a concrete precast or pipe operation. The weather turns warm, the workflow quickens and all of a sudden there is an increase of rashes among some of your production workers. Coincidence? Perhaps not. Rashes are a fairly familiar occurrence in the precast concrete industry and there are many potential causes.

It is easy to see why rashes occur more frequently when the weather turns warm. With warmer weather, we start to sweat. Long sleeve shirts come off in favor of cooler clothing, exposing more skin. Sweat acts as a magnet for anything airborne, and, as we know, precast operations can generate a lot of dust. Some of those airborne particulates may include concrete and/or cement dust that naturally ends up on our skin. This is often how rashes occur.

There are a number of materials in a precast plant that could cause rashes, such as cleaning chemicals, curing compounds, sealant, fly ash and other concrete mix additives. Safety data sheets for all materials should be kept up to date and new employee orientation should include stressing the importance of being aware of the materials and chemicals they are working with and how to avoid unsafe contact. While just about any type of chemical can cause a reaction, in the precast industry cement burns are also often an issue when cement and wet concrete are handled improperly. (See “Preventing Cement Burns” in the Jan-Feb 2016 issue of Precast Inc. to learn more.)

What About Form Release?

There is a common misperception that form release agents cause rashes too, but that is not necessarily true and may come from a time when form releases were quite different. Prior to 1999, the most common carrying agents in form releases were diesel, kerosene and fuel oil. Improper handling of those old-style form releases could have caused rashes.

That all changed with the passage of Volatile Organic Compounds regulations in September 1999. In response to the regulations, form oil composition changed. Today, most carrying agents in form release agents are now mineral (seal) oils. While these new compounds could cause skin reactions if left uncleaned or unattended over an extended period of time, the risk would be considered minimal compared with other products used in the precast and pipe industries. Modern form release products are much more environmentally friendly and as a result they pose less of a problem when exposed to skin.

How to Avoid the Rash

As with many environmental issues at the plant, continuous education of employees is the key to keeping rashes at bay. The NPCA Safety, Health and Enviornmental Committee recently developed training materials available at precast.org that can be incorporated into precast concrete safety training and toolbox talks.

Visit precast.org and type “skin protection” into the search box near the top of the page for links to two new SHE Committee publications on the topic.

In talking with managers at a number of larger precast plants, the consensus was that that cement, cement dust and concrete were the primary causes of rashes in the workplace. In all cases, personal hygiene, including regular changes of clothing worn at work and the washing of exposed areas of skin, were considered to be the most important steps to avoiding skin problems.

OSHA considers contact dermatitis an occupational illness and states that any skin disorders lasting beyond 48 hours should be recorded with a separate entry on the OSHA 200 form.

10 Ways to Help Protect Employees from Skin Rashes:

  1. Continually stress the importance of personal hygiene. Frequent washing of exposed areas should be done regularly during the day. Washing of hands should be done before putting on gloves and after taking them off.
  2. Constantly remind production staff that they are working with chemicals and that certain precautions must always be taken when working with portland cement.
  3. Concrete and cement dust will permeate clothing. A daily change of clothing should be a regular habit. Clothes should be changed at work so as to not introduce cement residue into the car or home.
  4. Employees will often use plant air to blow the dust off their clothes. It will clear off the surface dust but the compressed air will also “push” some of the dust through the clothing, making more skin contact inevitable.
  5. Use protective clothing, especially gloves, whenever possible.
  6. Dry exposed skin thoroughly after washing.
  7. The use of moisturizing creams will keep hands and skin supple.
  8. Remove any wet cement from clothing.
  9. Don’t wear jewelry at work.
  10. Employees should be instructed to let their supervisor know immediately if they are experiencing a skin issue. Any persistent skin problem should be reported to a physician.

Bob Waterloo is technical sales manager, Concrete Release Agents, Hill and Griffith Co., based in Indianapolis.

Bulletins and Technical Papers for Concrete Casting Products

Tags: Concrete, Concrete Casting Products, Concrete Casting Supplies, Concrete Casting, Precast Concrete Safety, Concrete Safety, Precast Concrete, Concrete Form Release

GRIFCOTE® FR-50-VOC Concrete Form Release: The Workhorse for the Concrete Industry

Posted by Myke Amend on Jan 21, 2016 2:23:05 PM

cast concrete parking tiesGrifcote FR-50-VOC is the workhorse for the concrete industry for many reasons: From its Easy and Safe Application, to its Low Viscosity, Low Odor, and High Flash Point, it is no surprise that this pick from the Grifcote line is one of Hill and Griffith Company's most popular concrete casting products.

  • All Grifcote release agents are easily sprayed, swabbed or wiped.
  • Coverage rates are determined by the person applying the material. The low viscosity of Grifcote allows, in all cases, the "Thinner is better" concept that applies to form release application.
  • Grifcote products have low odor and high flash points above 260 degrees Fahrenheit to keep workers safe.
  • Grifcote carries a non-flammable noncombustible rating and is considered DOT hazardous material exempt. Drivers DO NOT need to be Haz Mat 126 Certified or use placards on their equipment.

 

The Hill and Griffith Company is known for our hands-on approach. Let us visit your plant and recommend products that suit your needs.

 

Concrete in the News:

Centralized Spray Systems for the Precaster

- by Bob Waterloo, Manufactured Concrete, Mar/Apr 2004

Download Article »

 

Sulfur Concrete: A New Construction Material from Simulated Martian Soil and Molten Sulfur

- Lin Wan, Roman Wendner, Gianluca Cusatis, 17 Dec 2015

The paper on this new product can be found in the Cornell University Library here:

http://arxiv.org/abs/1512.05461

 

Construction to Replace Asphalt with Concrete

- KCBY News, January 2016

"Where regular asphalt pavement lasts ten to fifteen years, concrete can last up to fifty years," says Oregon Dept. of Transportation spokesman Dan Latham. "So in the long term there's a big price savings."

kcby.com/news/local/north-douglas-county-i-5-construction-to-replace-asphalt-with-concrete

 

Polymers Render Self-Compacting Concrete Fire-Resistant:

- RETO ZANETTIN, Swiss Federal Laboratories for Materials Science and Technology, Dec 22, 2015

"Self-compacting high-performance concrete (SCHPC) has till now suffered from one weakness – when exposed to fire it flakes and splits, which reduces its loadbearing capacity. Empa scientists have now developed a method of manufacturing fire-resistant self-compacting high-performance concrete which maintains its mechanical integrity under these conditions."

Read more here: www.empa.ch/web/s604/fire-resistant-concrete

Tags: Concrete, Casting Solutions, Concrete Casting Products

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