Preserving your Asphalt Tutorial 4-7-17 av 2b

Category: Others/ Misc

Presentation Description

A tutorial on asphalt- why it deteriorates, how to preserve and extend the life of pavement.


Presentation Transcript


The Future of Pavement Maintenance


“How can we extend the life of pavement” Preserving pavement is a huge concern whether you are a homeowner, a business person, a city or county, or an engineer who is in charge of highway maintenance.


In general very few of us know why our driveways, parking lots, and streets deteriorate, while we spend millions trying to extend the life of asphalt. And have you ever wondered why private drives, bicycle paths and parking lots tend to go to pot faster than streets


We will answer these and other questions in this mini pavement maintenance seminar.


To be honest- The asphalt industry has not been interested in protecting and preserving asphalt in the past. Cheap oil and the need to dispose of waste from petroleum production made asphalt and the many coatings used to make asphalt pretty are the perfect dumping ground for the petroleum industry.


The asphalt industry has developed many different coatings and so called sealers to make asphalt look pretty. Many of these coatings are applied annually or every couple years in the guise of protecting the asphalt. Some coatings actually shorten the life of asphalt.


In this presentation we will explain the difference between topical asphalt coatings and newer scientifically designed sealer from Hawk Seale that will permanently protect and preserve your asphalt.


Driveways, Parking Lots and Bike Trails . Ever wonder why asphalt driveways and parking lots seem to deteriorate faster than streets? Without the compaction from heavier traffic driveways, bike trails, and parking lots begin to “decompress” and absorb more moisture. They begin to deteriorate quickly and require more and more maintenance as time goes on.


Weathering and Oxidation starts immediately, and is the major cause pavement failure and it occurs throughout the life of the pavement. The majority of damage occurs during the first 2 to 4 years, before the pavement is protected from absorbing moisture. Typically, Sealers are not applied until years later when some form of deterioration is already beginning to show. People tend to want to get some “use out of the pavement” before the think about spending more money to preserve it. This delay in sealing the pavement sets the stage for early failure and a shorter life span for the pavement . Weathering and Oxidation


Weathering and Oxidation Removes the Light Asphalt Particles from the surface of the pavement through evaporation. This causes the top ½ inch of pavement to dry out and become more “brittle” than the rest of the pavement. This “brittleness” begins the Premature Cracking and/or Raveling of the surface; opening up the pavement to moisture and damage from the freeze and thaw cycles in the north, and the extreme hot weather and rain cycles in the south.


Traditional Sealers Provide more “esthetics” than protection. They fail to address the primary cause of pavement failure which is- “Water getting into the pavement structure”, in fact they can actually trap moisture in the pavement causing more damage .


When construction is finished, the typical level of compaction leaves the Asphalt with 5% to 8% air voids that take in moisture. Summer heat then causes the moisture to evaporate taking the “lights” out of asphalt with it. “Lights” are the smaller asphalt molecules, similar to the difference of viscosity between Diesel and Gasoline. This evaporation is what you smell on hot summer days waiting in traffic or walking across parking lots. Moisture is pavements biggest enemy


This evaporation reduces the ability of the asphalt in the pavement to hold the aggregate tight allowing the pavement to begin cracking allowing even more moisture to penetrate the pavement. Over time moisture gets through the pavement into the base, which leads to alligatering, pot holes and more repair and eventually the high cost of overlay with a new layer of asphalt or complete replacement. Moisture is pavements biggest enemy


Have you ever noticed little “volcanos” in freshly sealed asphalt where sealers or crack fillers have been applied? That’s where moisture has pushed up through asphalt coatings creating small “vent steam holes” for the steam to escape. On hot summer days on fresh asphalt you can smell the lights in the steam as it rises and takes the “light asphalt particles with it. This dries out the asphalt in the process makes it brittle and also makes more room for more water for the next cycle of evaporation. . You can smell the evaporation Water Heat Steam


Many common cosmetic sealers can do more damage than good. They coat the top of the pavement, but fail to waterproof the pavement allowing moisture to penetrate the pavement. They actually help increase the build up of steam that builds up on hot summer days that carries the lighter asphalt molecules up out of the Pavement drying it out. Which then allows it to take in more water and the deterioration cycle continues at a more rapid pace gradually getting to the base underneath the pavement. Common sealers are cosmetic Water Heat Steam


Once moisture penetrates the pavement and gets in the road base potholes and alligatering begins leading to expensive repairs and the pavement to look unappealing. . Asphalt has no structural strength Water Heat Steam


Breaking the Maintenance Cycle Introducing Hawk Seale –a true penetrating sealer formulated to penetrate the pavement ; filling the cracks and voids with a silicone like barrier preventing moisture from entering the pavement permanently. Once cured it is impervious to moisture, all fuels, and oils and stops further deterioration of pavement.


HAWK SEAL-E replaces the “Light Asphalt Particles” that have evaporated from the pavement by UV Rays and heat which stops further deterioration of the pavement. HAWK SEAL-E’s molecular structure is heavier than water; it is positively charged to pull the product into the pavement The extract in Hawk Seale softens the asphalt in the pavement to allow Co-Polymers to adhere to the asphalt and aggregate in the pavement sealing the pavement from the bottom up HAWK SEAL-E sets up like a “silicone” in the pavement. and is fully cured in 7 to 10 days. HAWK SEAL-E becomes impervious to the elements and a “ permanent” part of the pavement. HOW DOES “HAWKSEAL” WORK


HAWK SEAL-E will penetrate through other sealers and coatings. It will penetrate through diesel fuel and oil spills. Minimal preparation is needed other than to remove debris and dirt and to fill cracks larger than 3/16 th inch with a good quality crack filler. HAWK SEAL- C is designed for concrete applications and is ideal for bridge decks, streets, driveways, parking lots. Hawk Seal E and C - Are water based and will not harm the environment. Will not injure birds, insects, and animals or humans. Will not damage streams, ponds, or rivers. Will not make streets slippery. We recommend that it is not ingested. ( Don’t drink it) And Gloves and Eye protection are recommended. HAWK SEAL


Side by side photos of opposite ends of Red Oak St. 18+ years later after being sealed with Hawk Seal-E Hawk Seal-E is still protecting the west end of the street. Hawk Seale E eliminates the maintenance cycle of crack filling, patching, and ultimately the high cost overlay. Hawk Seal-E is one of the best investments in paving today!


Our sealer truck dripped Hawk Seale on this pavement overnight. This photo was taken 10 years later- Notice the cracking stopped from all directions when it reached the drip area. Hawk Seale literally stops the deterioration of the pavement.


. This is the finished photo of the driveway Hawk Seale is opaque in color, the final color will depend on other factors, such as previous topical sealers. Asphalt that has not been coated prior to Hawk Seale will normally have a soft brown color.


Hawk Seale Distributing is a national distributer. This ensures you are getting the best pricing available. We can ship in 5 gallon pails 15, 30 and 55 gallon drums and 275 gallon totes. We have factory representatives available for any questions in regard to our products, application and pricing. Contact us for a quote Dealer inquiries are welcome Visit our website for more information Email-

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