Winter Road Maintenance and Winter Road Construction

Winter Road Maintenance

Winter Road ConstructionWinter Road Maintenance

Typically, it is unwise to do any major structural winter road maintenance in the cold winter months.  Many professional paving companies joke that the best time to do winter repairs is in the summer.  Winter road construction is not so much dictated by the season, but rather by the temperature.  Warmer states have much longer active road construction periods than states with cold winters.  Without special engineering permission, most states prohibit paving in conditions below 45-50°F (for example asphalt conditions must be 50° and rising in Utah).  Never install asphalt or concrete on a frozen subbase; this will only ensure additional work for you when the conditions improve and you have to redo the job.  

 

Emergency Pothole Repair

For temporary repairs such as potholes use cold mix asphalt.  If the temperature is below the recommended level and it is an emergency, cold mix asphalt will work.  During this cold weather repair, remove all ice, moisture, and debris from the affected area using a heat source.  Keep in mind, this repair is meant to be temporary and should be permanently remedied when conditions improve

 

Winter Road Repairs: Crack Sealing

Crack sealing is actually preferred in colder months because pavements expand and contract with seasonal temperature changes. Consequently, cracks and joints are expanding and contracting when the pavements move. Crack sealing is a preventative winter road maintenance practice meant to extend the life of pavement. Since cracks on the pavement surface allow water and incompressible materials such as sand, dirt, and other debris to enter the pavement structure, these cracks can dramatically accelerate deterioration and weakening. Sealing cracks prevents further deterioration of the pavement and, when properly executed, can extend the life of the pavement anywhere from 6 months to 4 years. 

 

 

Crack Sealing Tips

  1. As recommended with the pothole repair, clear the crack of moisture, dirt, debris, vegetation and chemical deicers to make the sealing more effective, use a heat lance and/or compressed air.  If using a heat lance take care not to burn or scorch the pavement and the place the sealant before the pavement in the crack cools to allow for the best adherence of the crack fill materials.
  2. Seal all cracks from 1⁄4 inch to 1 inch in width the entire length of the crack. Cracks smaller than 1⁄4” will not retain sufficient sealer to flex in the cold. Cracks greater than 1” will sag and possibly prematurely fail without the installation of HMA or backer rod.
  3. When repairing cracks, fill the entire crack and level any affected area to ensure a smooth and level pavement surface.
  4. Apply the sealant or repair material only when the sealant or repair material is within the manufacturer’s recommended application temperature. Special care must be taken to assure that the sealant temperature does not exceed the manufacturer’s recommendations; otherwise the polymers may be destroyed therefore reducing the sealant performance.
  5. Keep in mind that more sealant is not always better. Over applying sealant material can lead to problems when paving over with HMA or bleeding up through the seal or paving application.
  6. New sealants are not designed to be “road glue”. They are very sticky and have tremendous bonding power; however, they were not made to “hold the road together”. Crack sealing has one objective: to prevent water from further damaging roads. Sealing “buys time” and saves money by delaying the expense of major reconstructive pavement work.

 

Powerblanket can help with Winter Road Maintenance

Whether you need a means for protecting temperature-sensitive materials in storage, or you need a heating solution for onsite temperature maintenance, the Powerblanket Hot Box will do the job.  This versatile heating solution accommodates remote-location use, job site heating, the transporting of temperature sensitive materials.  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; chemicals, industrial products, and temperature sensitive materials will last longer and be more effective.

Winter road maintenance

5 Helpful Tips for Winter Construction Efficiency

5 Tips for Winter Construction

Working outside during the cold winter months presents many obstacles; however, some jobs will not wait for better circumstances. Below are some tips and solutions to improve winter construction.

1) KEEP YOUR EMPLOYEES SAFE

Train your employees in proper winter construction precautions.  Encourage everyone to wear layers of loose-fitting clothing, to stay dry, and to protect from the wind and sun with gloves, hats and sunscreen.  If conditions become too cold/dangerous, employees should have access to shelter.

On the work site, remove ice and snow regularly to prevent slips and falls.  This can be a full-time job depending on the weather.  The act of shoveling snow can also be extremely strenuous, especially for those individuals who do not engage in regular cardiovascular activity. According to the Cleveland Clinic, approximately 11,000 people seek shoveling-related hospital treatment each year for injuries (93%) or cardiac issues (7%). To save time, energy, and your employees health, use Summerstep heated safety mats to keep the walkways on your construction site clear.

Summerstep Snow Melting Mats

  • ,  Protect personnel from winter weather conditions and keep stairs, doorways, walkways, and ramps free from snow and ice
  •   Prevent slips and falls
  •   More convenient than shoveling snow
  •   More effective for snow and ice melting than harsh chemicals (less damaging to the environment, reusable, won’t damage concrete or other flooring surfaces)
  •   Will melt approximately 2 inches of snow per hour when operating
  •   40 Watts/Sq ft heated area
  •   The ONLY snow melting mat product made in the USA

 

2) MAINTAIN INTEGRITY OF CONCRETE

Winter construction cold-weather operations aren’t just about safety. While most construction tasks can be carried out in cold weather, some operations, such as concrete work, can take much longer and even fail without proper precautions.

 

If concrete is to reach necessary strength levels, it can’t be allowed to freeze for the first 24 hours after being poured or placed. Sheeting the concrete can ensure the required temperature and moisture necessary for curing, if the weather isn’t too severe.  In severe conditions, supplemental heating systems or enclosures must be brought in to maintain the integrity of the concrete.

 

Powerblanket Concrete Blankets provide a manageable way to cure concrete in the cold weather months, save you time and money, and come in various lengths and sizes. We have you covered.

 

Powerblanket Concrete Curing Blankets

  •   Cure concrete 2.8 times faster than conventional insulated blankets
  •   Produce cold weather concreting strength of 3,925 psi in 72 hours
  •   Maintain moisture throughout hydrating process
  •   Easily installed and removed
  •   Maintain ACI compliance for cold-weather concreting  Certified to UL and CSA standards

 

3) DON’T LET FROZEN GROUND SLOW YOU DOWN

When it’s cold and the ground freezes, the job suffers.  Often prep for winter construction takes longer than the actual job.  Some industrial companies try heating the ground with massive coils or large heating systems, which become expensive and cumbersome. This approach requires rental fees and transporting equipment.  

Powerblanket has considered the difficulties and delays associated with winter construction and cold/freezing temperatures and has created a solution.  With Powerblanket’s patented heating technology you can prep the ground with little to no effort or supervision on your part.

Powerblanket ground thawing blankets have a higher power density and hotter temperature than our concrete curing blankets. The higher power is iideal for ground thawing applications and curing epoxy or resins.

Why Powerblanket Ground Thawing Blankets?

  •   High power density thaws frozen ground quickly
  •   Remove frost prior to concrete pour
  •   Melt snow and ice from roofs, walkways, and construction areas
  •   Easily placed and removed for repeated use in harsh winter weather
  •   Can be used to cure epoxy and resins
  •   Certified to UL and CSA standards

 

4) KEEP MATERIALS WARM

Masonry, roofing, paint, and plaster/stucco materials are all sensitive to cold weather.  Maintaining the integrity of these materials is critical for their success in winter construction.

Powerblanket Hot Boxes save you money by keeping your products from freezing without the risk of overheating. The Hot Box pallet warmer is easily assembled, taken apart. Hot boxes are ideal for cold wea
ther storage, freeze protection, transporting, job site heating, remote location use, and winter roofing. Standard Hot Boxes hold product between 100°F and 120°F (38°C and 49°C) and optional adjustable thermostatic controllers allow temperatures to be precisely controlled.

Powerblanket Hot Boxes:

  •   Quick and easy assembly
  •   Preserve temperature sensitive material
  •   Heat materials and palletized products: adhesives, shingles, paint, caulk, resins epoxies, etc.
  •   Access doors on two sides.
  •   Certified to UL and CSA standards

 

5) USING A PROPANE HEATER

Winter construction professionals often use temporary, propane-powered heating equipment on the jobsite, making it easier to finish projects on time and on budget. In addition to providing more comfortable working conditions, propane-powered heaters can also maintain the ambient temperatures necessary for common tasks like drywall installation or painting. However, like any portable heating device, propane-powered heaters must be used and maintained properly.

When temperatures get too low, the propane will not flow consistently or effectively, and you may lose your heat altogether. Propane-tank efficiency will fall substantially as the temperature drops. As the temperature drops, so does the pressure in your propane tank, and the pressure in your propane tank directly affects the volume of propane you have to work with. Your extraction rate (how quickly and smoothly you can extract propane from the tank) will suffer as well. Without a heating source to assist in the pressure maintenance of your tank, you will have to keep it as full as possible in order to keep it working, even if temperatures are mildly cold.

Powerblanket Propane Tank Heater

Powerblanket has the best propane tank heating solution on the market. These heating blankets will help maintain pressure and efficiency on just about any size tank. All Powerblanket heating blankets are certified to UL and CSA safety standards

Benefits of Powerblanket Propane Tank Heaters:

  •   Increase performance and efficiency of propane tanks
  •   Eliminates unnecessary cylinder refills in cold weather
  •  Even heat distribution in the areas where it is needed most
  •   Save money by optimizing gas and material usage
  •    Certified to UL and CSA standards