Powerblanket at the World of Concrete—A Demo in Concrete Curing

Earlier this month, Powerblanket attended the 2015 edition of the World of Concrete at the Las Vegas Convention Center. This year’s exhibition attracted 55,779 registered professionals. In addition, the event drew in 1,459 companies exhibiting their products and services. For Powerblanket and its concrete curing demo, the event proved to be a great way to engage with those in need of the company’s products.



Powerblanket and the World of Concrete

For Powerblanket, this year’s World of Concrete was an exciting investment of company time and resources. Powerblanket ran a concrete curing demo to demonstrate the effectiveness of Powerblanket® curing blankets on the set times and structural integrity of concrete pours. Those who were present were able to witness for themselves how much efficiency the curing blankets added to the curing process. Not only were the blankets able to cure the concrete nearly three times as fast, but they were also able to increase the strength of the concrete by 50%.

The slab used for the demonstration was 8” thick with a mix design that was formulated to provide a minimal PSI of 4,000 in only two days.  The slab was poured two days prior to the demonstration, and for the purposes of the demonstration, one portion remained unheated while the other section was covered in an MD series Powerblanket® curing blanket. At the beginning of the demonstration, the unheated portion of the concrete measured close to the 4,000 PSI that was required for the minimal target. Then the Powerblanket was added, and the portion of the slab that was heated by the Powerblanket MD Series concrete curing blanket measured a consistent 6,000 PSI after only 16 hours in place. That’s a PSI strength increase of 50% over the unheated portion of the concrete slab.

Powerblanket® curing blankets allow for such efficiency through the company’s patented technological approach to concrete curing and many other heating solutions. Not only do Powerblanket® curing blankets insulate the chemical reactions responsible for concrete heat exchange, but they also add heat to the equation—making them far more efficient than the common curing blanket.  Through the Powerblanket design, electrical heat is evenly distributed through the entire application, allowing for quicker set times and stronger concrete.

“Seeing people’s reactions to the demonstration was exciting,” said Ryan Jensen, Marketing Director for Powerblanket. “It was clear that everyone was impressed with the outcome.”

As a result, Powerblanket has engaged with more customers in an industry they already heavily serve.

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Laying Bricks and Block in Cold Weather

House construction in winterEven with the onset of winter, construction must continue. Problems from working in cold weather can include slowing the hydration of cement in mortar mix, lengthening cement curing time.
Mortar mixed during cold weather often has lower water content, increased air content, and reduced early strength compared with those mixed during normal temperatures. Mortar is often mixed with heated materials to produce performance characteristics associated with mortar mixed at normal temperatures, or with admixtures which may improve the early strength and plasticity of the mix. Water, sand, or both are often heated for use in mortar in cold weather. However, heating prepackaged materials such as cement and hydrated lime has long been a problem for brick masons.

Frozen Mortar Will Not Work

Mortar freezing should not be allowed to freeze. Mortar that freezes is not as weather-resistant or as brick mortar freeze protection guide graphicwatertight as mortar that has not frozen. Significant reductions in compressive and bond strength may occur. Mortar with water content over 6-8% of total volume will experience disruptive expansive forces if frozen due to the increase in volume of water when it is converted to ice, and the bond between the brick or block and the mortar can be damaged or destroyed.

The Benefits of Concrete Curing Blankets

Experts recommend covering newly-laid brick or block with insulating blankets when temperatures are below 40°F, and using heated enclosures when the temperature is below approximately 25°F. Powerblanket® concrete curing blankets eliminate the need for heated enclosures and are the best option when it comes to insulating blankets. They maintain the proper curing temperature no matter what changes in weather occur, keeping the mortar bond strong and lasting. Instead of building enclosures, concrete curing blankets can be easily hung on newly-laid walls, eliminating the need for constructing enclosures or other temporary structures.

Concrete curing blankets can:

Laying Bricks and Block in Cold Weather

  • Keep the sand pile and dry mix bags warm and dry
  • Ensure that crews can lay brick or block in any temperature
  • Achieve durable and long-lasting walls, with predictable scheduling and minimal crew downtime caused by poor conditions
  • Maintain proper curing temperature regardless of external conditions
  • Hang easily

Hot Boxes are Problem Solvers 

Whether you need a means for protecting temperature-sensitive materials in storage, or you need a heating solution for onsite temperature maintenance, consider the Powerblanket Hot Box. This versatile heating solution accommodates remote-location use, job site heating, the transporting of temperature sensitive materials. Imagine transporting materials from job to job, knowing that your mortar, sand, and/or dry mixes will be ready for use when you arrive and well into the day. The revolutionary design of Powerblanket Hot Boxes provides uniform heat to all materials stored inside. This reduces the chance of having any hot and cold spots. If stored properly, masonry materials, chemicals, industrial products, and temperature sensitive materials will last longer and be more effective.

Hot boxes are:

  • Versatile and easy to use for many different applications
  • Easily transported
  • Provide even heating
  • Reliable
  • Time, material, and money saving


Laying Bricks and Block in Cold Weather