Earthco driveway repair is a revolutionary patch material for repairing and maintaining asphalt as well as concrete surfaces. Unlike surfacelevel asphalt damage, fatigue cracking is almost always caused by problems beneath the asphalt in the underlying layers. Fastpatch asphalt alligator crack repair kit 1026285kit. Gatorpatch is a readytouse blend of asphalt emulsion, mineral fillers, glass. There are many things i have learned in that time, the most important being that there is a lot more to learn. It is critical that the subgrade level is properly prepared before applying the asphalt to prevent alligator cracking and other. There are almost always problems beneath the surface layer in the subgrade as well.
The first shrpdistress identification manual for the longterm pavement distress identification manual for the longterm. Alligator cracking a series of interconnecting cracks in the surface of asphalt pavement caused by heavy wheel loads fatigue that looks like an alligator hide. Understanding asphalt pavement distresses five distresses. Alligator cracks in asphalt pavement are a nuisance for foot and bike traffic and they collect debris. Distinct fatigue cracking patterns resembling the scales on a reptiles back, known as alligatoring, is an extreme deterioration problem that commonly occurs in asphalt surfaces over time. Cracking is most often the fault of one of these three common culprits. Jan 10, 2020 in the asphalt industry, alligator cracking refers to a surface damaged in such a way that the cracks form a pattern that looks like reptile scales, most notably those on an alligator or crocodiles back. Alligator cracking asphalt repair alligatored crack filler. The terms crocodile cracking, alligatored asphalt and crocodiling are all used interchangeably to describe the damage as the pattern formed is reminiscent of a reptiles scaly skin.
This form of cracking occurs when longitudinal cracks connect with traverse cracks and spread over a large area on your pavement over a short period. These interconnected cracks, often referred to as crocodile or spider cracking, commonly occur on asphalt pavements. Cracking of the surfacing bitumen on a bituminous roof or coating on a spf roof, producing a pattern of cracks similar to an alligator s hide. When water enters the base of the pavement, the base material is displaced and settles leading to further cracking and a depression in the surface. Refunds for these classes are being processed and the offerings are being rescheduled for the fall. At nac supply, we offer a remarkable range of alligator cracking asphalt repair materials for roadways, parking lots, driveways, paved walkways. What to do with alligator cracking in asphalt boca palm. If you are already in the asphalt industry then you know alligator cracking refers to a surface damaged in such a way that the cracks form a pattern that looks like reptile scales, most notably those on an alligator or crocodiles back. When fixing alligator cracking which can also be known as spider cracks in asphalt, theres the regular solution and the premium solution. The primary cause of failure is the permeation of water into the asphalt base.
Our alligator patch is specifically formulated so it will fill the cracks and then bond with the asphalt to ensure the cracks dont continue to move. It sounds a little risky, but i think that is our best option for now. When left unattended, cracks and splits eventually develops. Proper consultation with an asphalt paving expert is required to treat the alligator cracking as there is a difference between pavements designed parking for cars and cargo trailers. Alligator cracking, which is also called fatigue cracking, refers to the types of asphalt cracks that resemble a reptiles scales or a spider web. This form of surface damage usually indicates some structural failure. Alligator cracking could well be the most serious type of damage that your asphalt pavement suffers during the course of its life. Alligator repair patch for sale asphalt sealcoating direct. One of the most common types of asphalt cracking is fatigued cracking, also commonly known as alligator cracking.
Potholes are the result of moisture infiltration and usually the end result of untreated alligator cracking. Trowelpave asphalt alligator crack repair for blacktop pavement. Alligator cracks are aptly named because they resemble the dry and fractured skin of their namesakes. Also called crocodile cracking, the interconnected crack patterns resemble the scales of an alligator s skin. The culprit is water penetration coupled with wear and tear over time.
Mar 28, 2016 repairing alligator asphalt damage is important before it turns into a pothole, but using asphalt sealcoating directs alligator asphalt patch is the affordable solution that is fast and easy. Alligator cracking is one of the most common issues that affect your parking lot. Larger, deeper holes or extensive cracking indicate a problem that should be dealt with using professional equipment. The asphalt institute has postponed all inperson training sessions for march and april in an effort to protect students and staff from the spread of covid19.
Small, localized fatigue cracking indicative of a loss of subgrade support. According to the asphalt institute, sealing and filling cracks should not be done on a pavement that has significant structural problems as crack sealing or filling does not provide any structural improvement to the pavement. Distress identification manual for the ltpp fourth revised. Oct 17, 2019 well, alligator cracks are more serious than they sound, especially if ignored. Alligator fatigue cracking washington asphalt pavement. What to do when you see alligator cracking in asphalt wolf paving. Simply put, alligator cracking happens when the pavement is carrying burdens that the supporting structure cant hold up.
Small potholes a few inches in diameter are easy diy fixes. Distress identification manual for the ltpp fourth revised edition chapter 1. The dos and dont of repairing alligator cracking in asphalt. Fatigue cracking is sometimes called alligator cracking due to the interconnected cracks which resemble an alligatoris skin. Asphalt a material obtained through petroleum processing that is a generic term for asphalt concrete. Alligator cracking or crocodile cracking in asphalt is a serious sign of impending asphalt failure and needs to be repaired as soon as possible. They generally have sharp edges and vertical sides near the top of the hole. Unfortunately, alligator cracking is also one of the most serious problems that an asphalt surface can develop, especially if its allowed to go without repair. Crocks or gators in your parking lot alligator cracking.
Fastpatch asphalt alligator crack repair fastpatch acr is a cold applied, easy to mix asphalt restoration and repair material. The following is more closely related to fatigue cracking which is characterized by interconnecting or interlaced cracking in the asphalt layer resembling the hide of a crocodile. Excessive minus 200 material high fines asphalt ratio. Asphalt patching and repair for parking lots julius c. Poor drainage can also contribute to alligator cracks in asphalt. The definitive guide to fixing a sinking driveway magic seal. Asphalt pavement is an extremely popular choice for residential driveways, city streets, parking lots and busy highways. Low temperature thermal cracking, asphalt grade is too hard for climatic conditions. We have lots to say about asphalt and concrete paving, including tips on milling, resurfacing, patches, sealcoating, line marking and more. Dec 21, 2018 alligator cracking is more than just surfacelevel breakage. How to repair cracks in asphalt parking lots asphalt.
Small, bowlshaped depressions in the pavement surface that penetrate all the way through the asphalt layer down to the base course. Alligator cracking is more than just surfacelevel breakage. Covering an alligatorcracked area with cold mix or hot mix asphalt is a. Fastpatch acr is used to repair alligatoring cracks while providing a protective layer over the cracks to help prevent further cracking and to keep water from entering the cracks. The pattern usually begins with longitudinal cracks, which are then connected by transverse cracks. The name was derived from the appearance of the damaged asphalt a pattern of connected shapes that look a great deal like the scales on a reptiles back. Distresses for pavements with asphalt concrete surfaces. Filling in the alligator cracks with a patching product only offers a temporary repair solution. Alligator cracking in asphalt pavement is a sign of a failure under the asphalt surface. Alligator cracks look like the scales of an alligator. Like the name suggests, alligator cracking in asphalt resembles alligator scales. The expert will be able to figure what is needed to repair the alligator cracking. Trowelpave asphalt alligator crack repair for blacktop.
Some cracks are loadrelated and some are attributable to temperature or environment. The solution is to remove the crack filled asphalt, recompact the aggregate, and fill in the area. The reason this type of asphalt damage has such a reptilian description is that these stress cracks form a pattern that mimics crocodile or alligator scales. May, 2016 this type of cracking is more severe than others and if ignored, can become a serious problem. Our alligator repair patch is a unique product that is designed to fill and cover the entire alligator crack area aka crocodile cracks. The problems beneath the asphalt is most likely the cause which is why its so serious. Unfortunately, alligator cracking is also one of the more serious problems that an asphalt surface can develop, especially if its allowed to go without repair. Crack sealing as a pretreatment improves preservation results.
Homeowners wonder what causes cracks in asphalt paving and what can be done to avoid this issue. Mar 12, 2020 alligator cracking in asphalt is a common sign of major damage on driveways, roadways, and parking lots. The dos and dont of repairing alligator cracking in. Alligator cracking avoid it with asphalt repair posted on november 28, 2018 by oldcastle materials texas if youre a business owner, the paved surfaces that your customers, clients, and patients access to reach your door may not be topofmind. This section covers asphalt concretesurfaced pavements acp, including acp overlays on either asphalt concrete ac or portland cement concrete pcc pavements. It occurs when there are issues with the material beneath your top layer of asphalt. Alligator cracking is also known as fatigue cracking. But cracks and other marring detract from the appearance and cause premature deterioration. When we run into minor alligator cracking i think we are going to go ahead and give the gator patch a try just to see what happens. How to treat alligator cracks aegis asphalt sealcoating. If you see alligator cracking in your parking lot, youll need to contact one of our parking lot repair contractors as soon as possible. National asphalt paving association education foundation.
The cracking is likely due to water infiltrating pavement cracks and running down to the low point drain underneath the pavement, weakening and removing material from under the alreadythin hma layer. At wolf paving, we have been providing asphalt pavement services, from installation to repair, for 75 years. Type of pavement cracks and how to repair engineering. Potholes are when the asphalt is broken or carried away.
May 26, 2015 alligator cracking can occur on an asphalt pavement driveway if there is a failure in the subbase under the asphalt surface. Alligator cracking is a term commonly used to describe the distinctive appearance of an asphalt surface that has suffered fatigue damage. On top of that a lot of customers just want to keep their driveway around for as long as they can and keep in looking good along the way. How does alligator cracking affect your parking lot. If the pavement has base failures, severe rutting or fatigue alligator cracking. The problems beneath the asphalt is most likely the. The cracking is likely due to water infiltrating pavement cracks and running down to the low point.
Any area with alligator cracks should be sawcut and removed and the base should be inspected and corrected depending on what is found. Once the characteristic alligator pattern is apparent, repair by crack sealing is generally ineffective. Aug 22, 2018 alligator cracking in asphalt is a common sign of major damage on driveways, roadways, and parking lots. Fatigue crack repair generally falls into one of two categories. Covering an alligatorcracked area with cold mix or hot mix asphalt is a very temporary repair. Interconnected cracking that forms rectangles caused by shrinkage when. Crocodile cracking occurs when the pavement is carrying loads that the supporting structure and base cannot support. What to do when you see alligator cracking in asphalt most.
Alligator cracks are often caused by fatigue in the asphalt due to repeated weight of traffic. Over time, this material can buckle when too much weight or stress is placed upon it. Alligator cracking is a serious threat to your parking lot and should be addressed as soon as its discovered. Our 5 gallon bucket of biga alligator asphalt repair is a blend of asphalt emulsion, mineral fillers, organic fibers, ground rubber and plasticizer it is very durable for filling alligator cracks also known as spider cracks in asphalt parking lots, driveways, play grounds, walkways, running tracks, tennis courts, driveways, running tracks, walkways, playgrounds, etc. In addition to alligator cracked areas, it can also be used to fill shallow depressions or to fill cracks in excess of 12 wide or 12 deep on any asphalt surface. In the asphalt industry, alligator cracking refers to a surface damaged in such a way that the cracks form a pattern that looks like reptile scales, most notably those on an alligator or crocodiles back. How to repair alligator cracking on an asphalt driveway. The cracks may not extend completely through the surfacing bitumen or coating. Filling in the alligator cracks with a patching product only. The cracking patterns caused are extremely distinctive and resemble the scales on a reptiles back or the cracking youd see if you dropped a hardboiled egg. This engineered cementitious material utilizes the most current advances to provide a fiber reinforced solution that is fast and easy to use and produces longer lasting repairs. Potholes are dangerous to pedestrians and vehicles and require immediate repair.
What to do when you see alligator cracking in asphalt. Distress type acp 1chicken wire alligator pattern cracking typical in fatigue cracking 5 figure 5 distress type acp 1low severity fatigue cracking 5. From day 1, asphalt begins to break down from the sun, rain, and load traffic. The best long term option is to repair the subgrade, the asphalt base. Alligator cracking avoid it with asphalt repair texas materials.
Alligatoring is the cracking on a bituminous roof or coating on an spf roof, producing a pattern of cracks similar to an alligator s hide. It has been almost 2years since arriving here at the cornell local roads program clrp. Alligator cracking alligator cracking is a term commonly used to describe the distinctive appearance of an asphalt surface that has suffered fatigue damage. The premium solution is to coat the walls of the alligator cracks with a tack kote primer, apply the patch, then seal over with an asphalt sealer. Alligator cracking usually means the foundation of your parking lot is significantly damaged. Remove the cracked pavement area then dig out and replace the area of poor subgrade and improve the. Fatigue or alligator cracking in asphalt parking lots and roads is major damage that appears as circleshaped cracks resembling the rough, armored skin on the backs of alligators. Unremedied alligators and other cracks can become potholes. It refers to cracking on asphalt paving that looks like the back of an alligator.
Apr 07, 2017 alligator cracks in asphalt pavement are a nuisance for foot and bike traffic and they collect debris. It is either too thin or compaction was done unevenly. Fastpatch acr is used to repair alligatoring cracks while providing a protective layer over the cracks to help prevent further cracking. What your driveway is trying to tell you popular mechanics.
With the big a alligator patch, you can easily repair spider or alligator cracks in asphalt and prolong the life of your pavement. A cold applied, easy to mix asphalt alligator cracking repair material. We recently received a question from a customer in regards to repairing alligator cracking and i thought it would be beneficial to share the answer with other home or business owners who may encounter the same problem. Fatigue cracking, which is also known as alligator or crocodile cracking, is one of the most common ways that asphalt pavement can. When this type of damaged has occurred, asphalt crack repair is needed to restore the asphalt surface to its proper form. Many of the photos used in this appendix are from the ltppdistress identification manual. Nov 28, 2018 alligator cracking avoid it with asphalt repair posted on november 28, 2018 by oldcastle materials texas if youre a business owner, the paved surfaces that your customers, clients, and patients access to reach your door may not be topofmind. Fatigue cracking, which is also known as alligator or crocodile cracking, is one of the most common ways that asphalt pavement can deteriorate over time. Thermal splitting or cracking asphalt roof shingles. Alligator cracking avoid it with asphalt repair texas. With alligator cracking, interconnected cracks form in a pattern of small geometric shapes. Alligator cracks are one of the most common forms of asphalt deterioration and as with any type of crack, it is important to treat it to stop further damage to your investment. Crocodile cracking, also called alligator cracking and perhaps misleadingly fatigue cracking, is a common type of distress in asphalt pavement.
1372 476 1208 435 993 423 877 121 156 448 490 314 131 1673 246 65 381 1464 1411 139 1225 194 1051 58 1449 642 1330 357 196 1580 967 1501 319 489 5 1024 1508 1497 940 458 1144 918 302 403 1273 1185 635 1320 274