stockBy Chris Galloway 

If you don’t see them then you certainly hear them; at every construction job site, the jackhammer’s raucous hammering can be heard above the normal boisterousness of a busy site. And if you've ever seen one in operation then you're probably aware of the hazard they pose — they're designed to violently pulverize rock, stone and concrete. They could do a number on someone if used improperly. But even with safe operation, the pneumatic jackhammer poses dangers that are as subtle as they are hazardous. 

GettyImages 1057751720By Barry Stiles

Sea levels are rising at an alarming rate. Coastal areas across the United States face as much as a five-foot rise within the next 80 years. The increased flooding, coastal erosion, infrastructure damage and other effects will cost the world upwards of $14 trillion each year by 2100. Controlling flood damage will come down to creatively designing projects with floods in mind.

IMG 2441 RGBBy GCP Applied Technologies

There’s been a lot of talk about the benefits of high flow concrete, but how do you know when to use it and when conventional concrete is sufficient? First, let’s define the different types of concrete.

  • Conventional concrete: Normal slump concrete has been used successfully for decades, but can be difficult and labor intensive to place.
  • Self-consolidating concrete: This is a specifically designed mix, typically containing higher cementitious contents and smaller size coarse aggregates. Self-consolidating concrete mixes are typically more expensive, but require less labor than conventional concrete to place. Self-consolidating concrete’s moisture tolerance can be sensitive, so you need to have sufficient quality assurance staff in the field to ensure the right consistency. 
  • Control flow concrete: This category of concrete bridges the gap between conventional concrete and self-consolidating concrete. Control flow concrete uses conventional mix designs, larger coarse aggregates and GCP Applied Technologies’ CONCERA® water reducing admixture. Therefore, material costs are lower than self-consolidating concrete. 

Let’s look at the characteristics of each type of concrete.

chart 1

Many factors need to be considered with choosing a specific concrete category.  First, consider where the concrete will be used. For example, control flow concrete is ideal for most slab on grade and formed concrete applications, while self-consolidating concrete is advantageous for use in highly reinforced and very difficult to cast applications.   

Additionally, when considering the price of each type of concrete, you’ll want to take into account the cost of the materials, as well as the cost of labor in the region. Since higher flowing concrete, like control flow concrete and self-consolidating concrete, significantly reduce the amount of labor involved with placing concrete, their benefits are even greater when they’re used in cities with high labor rates.

Pros and Cons of Different Concrete Types

chart 2

Learn more about creating control flow concrete with CONCERA®admixtures.



By Katherine Van Adzin

Lahey Hospital and Medical Center, one of metro Boston’s premier medical facilities, needed to relocate its general internal medicine (GIM) department through a fit out of a nearby 37,000-square-foot site. In addition, the hospital required a 4,000-square-foot diagnostic fit out on the first floor. The new department needed to be up and running by a fixed date and had to be moved from the midst of a functioning hospital into an occupied office building while minimizing disturbance to both locations.


GettyImages 912969272By Guy Barlow

Being relatively new to the tech explosion we shouldn’t be dazzled by the latest bright and shiny toys. We need to focus on some of the basic building blocks or concepts that ensure technology success before we take advantage of the many SaaS-based, best-of-breed applications in the market. Here are three areas to think about:

GettyImages 886026522Verifying worker training is the next frontier in accident reduction. IDcard, QR code, and mobile technology make it work.

By David Finkelstein

About one in 10 construction-site workers are injured every year, according to the Occupational Safety and Health Administration. This adds up to about 150,000 construction-site injuries annually, including nearly 1,000 deaths. 


By Roy Rasmussen

In the construction business, winning bids is everything. Even a small increase in your winning percentage can mean a substantial boost in revenue. One easy but important way you can boost your bid winning percentage is by making your bid proposals look more professional. A good-looking proposal makes you stand out from rival bidders and increasing your odds of winning the contract. Here are three simple but effective keys to making your bid proposals look more professional and win more contracts.

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