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Is ice wedging the same as frost wedging?
Yes, ice wedging and frost wedging are terms often used interchangeably to describe the mechanical weathering process where water seeps into cracks in rocks, freezes, and expands, causing the rocks to break apart.
Where do ice wedging mostly occur?
Ice wedging mostly occurs in regions where there are frequent freeze-thaw cycles, such as in cold climates or mountainous areas. The repeated freezing and thawing of water in cracks and crevices can cause rocks to break apart over time.
What makes potholes in the road?
A pothole is a depression in a roadway that can range from a few inches wide and a few inches deep, to several feet wide and sometimes a foot deep. Potholes jar the tires of cars driving over them sometimes causing handling and suspension problems.Since potholes form in both gravel and paved roads it is not a simple matter of rain washing the material away, and since rain falls equally on all the road the wearing effect should be equal over the whole surface. Another consideration is that potholes seem to appear in the spring. Furthermore, potholes can form in cold climates as well as hot climates only for different reasons. Potholes seem to be the result of several factors depending on where you live.In colder climates:The freezing and thawing of the road surface lifts the road material up making cracks in the surface.These cracks formed to fill with water which freezes and expands the cracks wider.The thawing water washes the broken material out of the cracksCars traveling the road hit the small cracks vibrating even more material loose from the area.As the holes continue to grow the bumping gets more severe, breaking more of the surface loose.As these breaks get wider the asphalt is able to rock loose leaving the pothole behind.In warmer climates:Over time as the sun heats up the asphalt it will start to dry out the oil and binders which hold the asphalt in place.Once the asphalt reaches a critical point of dryness it becomes less able to absorb shock from the cars traveling on the road or parking lot.Eventually the asphalt will form fine cracks, typically found in the drive path areas of roads and parking lots.When winter rains come these cracks fill with water and begin to widen.Once the cracks are large enough the asphalt will pop out do to vibrations from vehicular traffic.In either climate the pothole process is initiated by small breaks in the surface. Some are caused by freeze/thaw cycles and others are caused by asphalt drying out due to long term sun exposure. The potholes continue to form from exposure to rain and traffic. After time the original material becomes loosened and eventually fails completely. Leaving behind the pothole.The next question is why do potholes appear in the same places year after year. This results from the repair of potholes with cold pack asphalt. If the material is not installed properly (bonded in palace with tar and tamped and rolled into place) it is easier to break up than the rest of the road surface, Sort of like the problems with a poorly filled dental cavity. As a result the new pothole forms where the surface is weakest, the site of the poor repair.On gravel roads potholes often result from another cause, the natural frequency of the tire and shock absorber system of car. These potholes can be either individual depressions or ridges that run normal to the flow of traffic. This latter condition is more commonly known as a washboard road. In this case some minor irregularity of the road causes a car tire to bump up. When it comes down it impacts the clay and gravel compacting it slightly. This forms a depression which causes another compression and release of the suspension. The period of the movement is due to the natural frequency of the system. Eventually this causes a series of depressions each time the tires rise and fall.On the lighter side:It is caused by marijuana smokers throwing their roaches out the windows. That causes pot holes.
Where is frost wedging most likely to occur?
Frost wedging occurs in small cracks in the rock where water seeps in. The water then freezes and expands (fun fact: water is the only knowns natural substance that expands when freezing, and is also the only substance capable of existing in all three basic states of matter--liquid, solid, and gas--at naturally occurring temperatures), which then splits--or "wedges--the rock apart. I've attached an image for graphic demonstration.
Describe at least three processes that mechanically weather rock?
(1) frost wedging--the expansion of freezing water pries rock apart; (2) pressure release--the reduction of pressure on a brittle rock mass, which can cause it to crack as it expands; (3) plant growth--as roots grow in cracks, the rock mass breaks up.
What often causes potholes in streets?
ice wedging
Is ice wedging the same as frost wedging?
Yes, ice wedging and frost wedging are terms often used interchangeably to describe the mechanical weathering process where water seeps into cracks in rocks, freezes, and expands, causing the rocks to break apart.
What special factors affect driving on residential streets?
Cities and suburbs can be hectic,crowded places. Cars, buses, trucks, and other vehicles crowd the streets. For much of the day, pedestrians may fill the sidewalks. People can cross the street at any time. Double-parked vehicles often block visibility, and potholes may interrupt traffic flow.
What often causes pothpoles in streets?
Potholes are holes created in the road due to various stresses. On tar roads, the tar can expand and contract considerably during the summer and the winter. As a result of this constant contraction and expansion, parts of the road can erode away. During the winter, ice can also form in the pores in the tar road and the freezing of the ice expands the road slightly. Over days, weeks, and months of exposure to such stresses, tar roads break away at weak points and form potholes. Continued driving and application of the weight of multiple cars and trucks can also facilitate the road's destruction. The same can occur on concrete roads, although not as often as on tar roads.
Oxbow lakes are formed in potholes?
Oxbow lake are usually formed in flat, low-lying plains close to where the river empties into another body of water. They are usually stillwater lakes and often they become swamps or bogs, not potholes.
What factors affect urban and suburban driving?
Cities and suburbs can be hectic,crowded places. Cars, buses, trucks, and other vehicles crowd the streets. For much of the day, pedestrians may fill the sidewalks. People can cross the street at any time. Double-parked vehicles often block visibility, and potholes may interrupt traffic flow.
What is the name of the material placed in the gaps between the concrete sections?
Cementanswer #2The material is an asphalt impregnated fiber material designed to block and penetration of water and be somewhat flexible. During the lifetime of the roadway the maintenance efforts will often fill the gaps with a liquid tar based sealant to keep water out and prevent the creation of potholes. Water gets through and washes out the supporting structures which causes cracking. Water and ice are the enemies that cause potholes and other problems.
What causea Mild wedging t6 t7 t8 vertabral bodies?
Mild wedging of the T6-T8 vertebral bodies is often caused by age-related degenerative changes in the spine, such as osteoporosis or disc degeneration. It can also result from poor posture, repetitive strain, or minor trauma. Regular exercise, good posture habits, and proper body mechanics can help prevent worsening of the wedging.
In which course of the river are potholes formed?
Potholes are formed in the course of a river typically in areas with fast-flowing water carrying sediment that wears down the riverbed. They are often found in turbulent or swirling sections of the river where the sediment is churned against the riverbed, creating depressions or holes.
Are the streets made of cheese?
No, the streets are not made of cheese. Streets are typically constructed from materials like asphalt, concrete, or stone, designed for durability and safety. The idea of cheese streets is a whimsical notion often found in children's stories or songs, rather than reality.
What type of streets do zombies live on?
Zombies are fictional creatures and do not actually live on streets. In horror films or stories, zombies are often depicted roaming the streets in search of prey.
Which city has the most potholes in the US?
Having driven in many cities in the US I would have to say that Detroit Michigan has some of the worst roads in the country. I drive a lot in the state of Oklahoma. In Tulsa, the roads are really bad and uneven. Potholes there range anywhere from 1' to 6' in diameter and up to 2' deep in some places. Those potholes are just the ones located on paved roads. Some dirt or gravel roads have had up to half of the road missing after a big storm."During the fiscal year 2000-01, 83,613 potholes were repaired." That was from a report given by the city, on the conditions of roads in Tulsa. Those numbers, however, are just an estimate of the potholes that have been reported as repaired according to city maintenance records. There are still more potholes that haven't been reported, fixed, or are on roads that the city isn't responsible for maintaining.
