Procedure and Work Process for Making Parking Lots on Asphalt Pavement
How is an asphalt parking lot or driveway made?
Asphalt is often used when making parking lots or driveways by the asphalt paving contractors usually. Paving work of the parking lot using asphalt is roughly divided into four steps to be completed. I will introduce the process from making the ground to compacting the asphalt in an easy-to-understand manner.
Asphalt pavement may be possible even in places where the ground is weak. Even weak grounds that seems to be unable to be made into asphalt, such as rice fields and fields, can strength by laying gravel and can make parking lots with asphalt pavement. In this article, I will explain the asphalt pavement by touching the difference with concrete pavement.
Table of contents:
- Essential working steps when making parking lot
- Step 1: Drilling
- Step 2: Correcting the roadbed
- Step 3: Lifting the asphalt
- Step 4: Asphalt rolling
- Points to remember when making a parking lot on a weak ground
- Perform ground improvement first
- Grind the gravel and get drainage
- What happens if you do not reach the required thickness of the gravel layer
- Asphalt is recommended for parking pavement
- Asphalt parking lot pavement is rich in type
- Asphalt recommends parking pavement
Essential working steps when making parking lot:
Explanations of the specific pavement work process by type. Introducing asphalt as a representative pavement work.
Asphalt is the most useable in the pavement work of the ground. In this article, I would like to introduce about asphalt pavement which is a common pavement method among multiple pavements.
The process of asphalt pavement is divided into four main parts. Let's see how the asphalt will be completed at the ground.
Step 1: Drilling
First of all, do the work of diggings. This work is under preparation for asphalt paving. Using a digging machine (like tractor), dig the soil and remove unnecessary soil.
When you want to make parking lots, calculate the thickness of asphalt, etc. so that there is no step between the road and the parking lot and dig down the ground to an appropriate depth usually 12cm to 15cm for ordinary parking lot and 22cm to 25cm for heavy vehicles.
Step 2: Correcting the roadbed
Before laying asphalt, lay rough material called crushed stone on the dug ground and adjust the roadbed.
The goodness of the stage of laying this crushed stone greatly affects the appearance and strength when asphalt pavement is completed. It is a work to be done carefully.
Step 3: Lifting the asphalt
Here is the arrival of asphalt. The asphalt mixture is laid on the surface of the correct ground bed.
In the case of a small area pavement, we use a tool called Reiki to lay it down with the hand of a person. In the case of large-scale paving, in addition to using Reiki, lay an asphalt mixture on a heavy machine called a finisher. By finishing with a finisher, you can make it a beautiful finish even on a large area.
Step 4: Asphalt rolling
Finally, do the rolling work. Compress the asphalt with about 120 degrees of heat by compressing it from the top with a rolling machine. It can be used if the surface temperature of the asphalt cools down to about 50 degrees. Do not forget to put time, as stopping the bicycle or walking in steps of 50 degrees or more will cause the asphalt to deform and cause deterioration such as cracking.
Points to remember when making a parking lot on a weak ground
When changing ground with weak ground such as field etc. to asphalt parking lot, construction method is different from usual. That is because we need to strengthen the ground.
Although it is possible to make asphalt pavement even on a weak ground, it is not only easy to deteriorate the pavement but also there is a danger that an unexpected accident may occur so that what can happen is that the ground does not have enough hardness. We have to perform pavement work on the assumption. Let's take a look at three points to be careful when paving a site with weak ground.
Perform ground improvement first
In rice fields and fields there are a lot of weeds growing bland. Weeds grow anywhere, but grass grows more easily because rice paddies and field soils are nutritious.
If asphalt pavement is done in weed growing condition, asphalt tends to fail, grass grows from asphalt gaps after a few years after paving. In order to keep paving as safe and beautiful as possible, it is necessary to pave the ground after it is difficult to grow grass.
To make it a strong ground, we will do ground improvement using cement material. It is effective to keep weeds from growing by keeping the foundation work firm, so if you have a field or a rice paddle, you definitely want to do it.
Grind the gravel and get drainage
After strengthening the ground, it is also important to level the ground. By grasping gravel between concrete and weak ground, it increases strength and simultaneously increases drainage. Put the gravel and crushed stone on the ground and level it, then roll it with rollers. It is common to lay gravel of about 10 cm, but if you originally have drainage in the ground, thin gravel is used, and in the land without drainage, thick gravel is laid, so that the height of the gravel in land is adjusted according to the situation.
Regarding gravel, we also need to think about the cost. The density and type of gravel are various, each strength and performance are different. When asking the contractor for pavement construction, let the proposal of the type of gravel meeting the budget while conscious of drainage. However, let's keep in mind that asphalt pavement in fields and rice paddies basically weak in ground is expensive.
What happens if you do not reach the required thickness of the gravel layer
As mentioned earlier, the gravel is about 10 cm in height and said that it adjusts according to the height of drainage, but what kind of thing happens if the thickness of the gravel is insufficient?
Asphalt which cannot remove water speeds up the deterioration. It seems that sometimes the small crack grows gradually and the hole is collapsed in the asphalt. It will cost money to re-pave if holes become empty. It is important to pay attention to wastewater so that the foundation work is carried out firmly so that asphalt is not likely to deteriorate because it is too concerned about the cost.
Asphalt is recommended for parking pavement
Concrete is widely used as a material for paving as well as asphalt. Which pavement is better for creating a parking lot?
Here, i will introduce the merit obtained by choosing asphalt for parking pavement.
Asphalt parking lot pavement is rich in type
Parking pavement has various designs. Especially, if you ask from skilled person to pave with concrete with abundant color variation and high design, you can make it a fashionable and nice parking lot. For example, using light concrete can produce a soft impression, and by combining with block tiles, lawn etc. You can express your own personality different from other houses.
The asphalt is black and dark gray impression, but color asphalt of conspicuous hue including red tea is also used. Besides concrete, if you incorporate gravel and tiles, it becomes a unique parking lot with a different flavor.
Asphalt recommends parking pavement
Although it is lower in design as compared with concrete, it can create a colored parking lot by color asphalt paving.
Can be used immediately after paving work
The strength of asphalt is how fast it cures, no matter. After concrete paving, you have to wait a few days in order to use it, but if it is asphalt it is possible to start using it the same day. It can be said that it is perfect pavement for those who want to create parking lots in a hurry.
Good travel ability and comfort
After all, although asphalt will be somewhat since it has good running performance and not much design, it is very comfortable to use.
Construction cost is cheap including maintenance
Asphalt, the price of which is cheap, can be done cheaply. Also, it is difficult to increase the design, so it will not be less expensive to design and expensive.
This time, I introduced the procedure of the parking lot construction, the attention point of the pavement work where the ground is weak, and the advantages of adopting the asphalt.
● Asphalt pavement procedure, drilling → roadbed correction → littering → rolling
● Fields and rice field are weak grass and weak ground
● Ground improvement is effective using cement material for strengthening the ground
●It is important to pay attention to the thickness of gravel and increase drainage
●Although it is inferior in design, the construction cost and the speed of curing are the advantages of asphalt pavement
Pay attention to these things and try paving the parking lot.