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Coal tar is a by-product of carbonization of coal and is a liquid or semi-solid substance. Coal tar was once used for road pavement, but it is currently replaced by asphalt and concrete pavement. Coal tar contains more than 300 kinds of aromatic compounds such as benzene, carbonic acid, and cresol, among which carcinogenic substances are said to be contained. In particular, benzo (a) pyrene is a relatively large amount of carcinogens contained in coal tar, and when it is taken into the body, a large amount of active oxygen is generated. Active oxygen is necessary for the body. However, if the amount is too large, it has the effect of damaging clean cells, which leads to carcinogenesis. uf0b4 I tried to summarize the difference between such coal tar and asphalt.
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The effects of asphalt components on the human body Next Next
What I discuss in this section 1. How is asphalt made? 2. The ingredients contained in asphalt and their effects on the human body? 3. The difference with coal tar used for road pavement 4. Raw materials and main components 5. Current main usage 6. Four merits to recommend asphalt pavement 7. Summary 8. My company introduction 9. Our services 10. How we can be found. Previous Next Next
How is asphalt made? There are two major types of asphalt: natural asphalt and petroleum asphalt. Natural asphalt has been used mainly as an adhesive and waterproofing material since ancient times and is produced in various forms, such as being soaked in stone and sand. There are also asphalt lakes in the world, and the largest natural asphalt lake “Pitch Lake” is famous as a lake that has been asphalted rather than water. Petroleum asphalt, on the other hand, changes depending on the manufacturing method and raw materials, but modified asphalt, etc., in which the polymer is mixed with straight asphalt to improve durability, is used on many roads…… Previous Next Next
The ingredients contained in asphalt and their effects on the human body I think I’ve seen where I’m paving asphalt, but when I pass near it I think that the smoke of asphalt comes out and I care about the peculiar smell. Although this smoke seems to be harmful to the body at first glance, its actual identity is the water vapor that has evaporated the water that cools the asphalt. Also, the smell of wet asphalt is unique on a rainy day, but it is said that the smell is not the smell of asphalt itself, but the smell of dirt and dust adhering to the road. It can be said that the smell of asphalt does not adversely affect the human body. So what is the composition of the asphalt itself? The main components of asphalt, oils such as paraffin and naphthenic…….. Previous Next Next
The difference with coal tar used for road pavement Coal tar is a by-product of carbonization of coal and is a liquid or semi-solid substance. Coal tar was once used for road pavement, but it is currently replaced by asphalt and concrete pavement. Coal tar contains more than 300 kinds of aromatic compounds such as benzene, carbonic acid, and cresol, among which carcinogenic substances are said to be contained. In particular, benzo (a) pyrene is a relatively large amount of carcinogens contained in coal tar, and when it is taken into the body, a large amount of active oxygen is generated. Active oxygen is necessary for the body. However, if the amount is too large, it has the effect of damaging clean cells, which leads to carcinogenesis. I tried to summarize the difference between such coal tar and asphalt. Previous Next Next
Raw materials and main components Asphalt is produced by distillation residue from crude oil and contains hydrocarbons as its main component. Coal tar is produced by carbonization of coal and contains more than 300 aromatic compounds such as benzene, carbonic acid, and cresol. Previous Next Next
Current main usage Asphalt is used directly on the roof, for road pavements, parking lots, and waterproofing purposes. Coal tar is used indirectly by taking out ingredients like synthetic fragrances for food, cosmetics, raw materials for fragrances and insect repellents. Previous Next Next
Four merits to recommend asphalt pavement When making a parking lot, it is better to use asphalt than other pavement methods. Let’s introduce it. 1: There is an affordable cost. 2: Soft and flexible, reduce the noise of the car. 3: Since it will be completely solidified when paved and cooled, the work days can be shortened. 4: There is less carcinogenic substance than coal tar and it is safe. Previous Next Next
Summary What did you think? This time, I have introduced the ingredients of asphalt and the effects on people. You may have to consider the impact on the human body from the smoke and unique oil odor when paving asphalt. However, it turned out that asphalt is safe because it does not contain negative effects. Asphalt that is often used in parking lots and roads. Previous Next Next
WHO ARE WE Standard Paving Inc. From roadway to driveway Previous Next Next
Our Introduction Standard Paving Inc. is one of the most famous pavers in Virginia. We have been providing our services for last 3 decades. We are experts in expedited repair as well as renewal of your of current parking lots. We have done many projects based on replacing parking lots and to repair damaged roads. We have also made a number of private roadways and commercial roads. Previous Next Next
Our Services Commercial Roads Parking Lots Parking Lots Repair Private Roadway Striping Previous Next Next
Why Choose us ? Professional Free Estimate Employment Asphalt Paving Tar and Chip Previous Next Next
How we can be found? Website: www.standardpavinginc.com Phone Number : 844 – 266 – 7283 physical address: 8803 Sudley Road, Suite 206 Manassas, VA , USA Previous
