Road Repair Made Easy for Everyone! Advantages of “Room Temperature Curing Type Step Repair Material” that Solves the Problems of Conventional Repair Methods

道端を歩いていると、劣化で道路に段差が生じているのを目にしたことがあると思います。大きな段差の場合は、人や車の通行にも支障が出てくるため、適宜補修が必要です。

また、施設への荷物搬入においては、段差ではなく傾斜が望ましくなるケースもあります。

道路補修・段差補修を行う際、何が最適であるか分からない方も多いのではないでしょうか。

本稿では、コンクリートやアスファルトの道路補修（段差補修）にはどういった方法があるのか、また初心者でも補修ができる補修材はどういったものがあるのか、ご説明していきます。

What is the difference between concrete and asphalt?

Can you answer clearly the difference between concrete and asphalt? For an accurate understanding, the characteristics of each are listed below.

concrete

Concrete generally refers to aggregate (sand, gravel, crushed stone) bound together with water and cement. Incidentally, cement is a powder made from crushed limestone or clay, which acts as an adhesive and hardens when hydrated or polymerized with water or liquid.

 

Concrete features include the following

• Sturdy and long-lasting
• Heat resistance
• Relatively expensive.
• Takes time to harden.
• Sturdy, making it difficult to construct later.
• Often used in buildings and in areas with narrow and poor ground

 

asphalt

Asphalt is a hydrocarbon found in crude oil, the most viscous and heavy of the hydrocarbons. It is also known as “soil bitumen. In a broad sense, asphalt is also defined as a type of adhesive cement, since it is commonly used to bind sand, gravel, and crushed stone together.

 

Asphalt has the following characteristics

• Softens when heated
• Relatively easy to use anywhere
• comparatively low price
• Short time to release
• Easy to repair over old asphalt, easy to remove
• Inferior to concrete in durability
• Commonly used for general roads

Conventional road repair and step repair methods

Next, we will sort out what conventional repair methods are available for repairing concrete and asphalt as described above.

Request for repair work

The first method that comes to mind is to hire a contractor who specializes in concrete and asphalt repair work. Many people who do not have the knowledge or experience will take this approach because there is nothing to arrange or prepare on their own if they hire a contractor. Since it involves construction work, full-scale restoration of the repaired area is possible.

 

Purchase repair materials at home centers and mail order sites

If you wish to take care of the problem yourself, you can purchase asphalt repair materials at home improvement stores or mail order websites. These repair materials are generally inexpensive and are used for first aid applications.

 

Purchase repair materials from repair contractor

In some cases, repair materials themselves are sold by specialized repair service providers. While many repair materials are of high quality because they are handled by specialized companies, they are also expensive.

Disadvantages of conventional road repair (step repair) methods

As mentioned above, there are several methods of road repair and step repair, but the reality is that each has its own disadvantages. In order to understand the more appropriate repair method, you should also understand the following disadvantages that each has.

 

Disadvantages of hiring a professional contractor for repair work

It involves the hassle of requesting and coordinating with a repair contractor. In most cases, the cost is also higher than if you handle the work yourself. Some construction work may require the use of heavy equipment, which may result in a more extensive response than expected, so care should be taken.

 

Problems with repair materials available at home centers and mail order sites

Repair materials available at home centers and mail-order websites are generally for emergency treatment and lack durability, so they tend to wear and tear after a while. Another drawback is that it is difficult to achieve a clean finish when installed by inexperienced workers. Many repair materials have a coarse grain size of 2 to 4 cm, and such materials are not suitable for finishing smooth surfaces because the coarseness of the grain size will always create bumps.

 

Problems with repair materials that can be purchased from repair companies

Repair materials available from repair companies are three to four times more expensive than those available at home improvement stores. For this reason, the durability of these materials is expected to be of a high enough level. These repair materials allow even inexperienced builders to achieve a relatively clean finish, but they do require a certain degree of familiarity with their use. Also, be aware that the high functionality of these materials requires handling time and effort, such as the need to wash the used equipment with thinner.

 

Problems with repair materials and repair methods in general

It would be good if the initial repair could be done quickly with a durable repair material, but there are many cases where repairs are done with commercially available repair materials as a stopgap measure, only to have them peel off and ultimately require repair work by a professional contractor. When amateurs or those unfamiliar with the repair work do not take sufficient care of the damage, there is a high possibility that the damage will be more likely to occur if the repair work is left as is. In addition, many repair materials generate odors, so in the case of store parking lots, etc., it is necessary to be aware of the area around the repaired area.

Requirements for road repair

When repairing a damaged or sunken road, what are the possible requirements for the repair work? Considering the constant traffic of vehicles and people, road repairs and step repairs should ideally meet the following points

• Curing in a short period of time and immediate road opening.
• Relatively easy to use anywhere
• Ability to install on wet surfaces, as the work is often done outdoors.
• High durability to prevent re-damage

Points for selecting an excellent room temperature curing type step repair material for road repair

For road repairs and step repairs that require the above-mentioned conditions, a type of repair material called “normal temperature curing type step repair material” is suitable. The following is an introduction of the superiority of the room temperature curing type step repair materials.

Short curing time

With ordinary asphalt, the road can be used only after the road surface temperature has dropped sufficiently, requiring about 2 hours for cooling. On the other hand, room temperature composites, as the name suggests, are used at room temperature and require less time to open up. Among normal-temperature composites, there is a difference in the opening time, and the one with less opening time is considered better.

 

Little variation in curing speed

Room temperature curing type step repair materials are characterized by their ability to maintain a constant curing speed regardless of the thickness of the repaired area. This makes it easy to determine when the repair is complete, and a constant level of finish can be expected at all times.

 

Low odor

When repairing in busy streets, residential areas, or restaurant parking lots, the odor of the asphalt repair is a key factor in selecting a repair material. Repair materials that do not smell of asphalt or thinner are more suitable.

 

Easy handling and plastering

One of the characteristics of room temperature curing type step repair materials is their ease of handling. It can be easily plastered by any person, and a certain level of repair effect can be expected even if the person has little experience.

 

Clean finish and few steps

Many room temperature curing type step repair materials have fine particle sizes, making it easier to perform clean repairs with fewer steps.

 

Easy washing after installation

Road repair requires the use of construction tools, which need to be washed with thinner or other chemicals after use, which is time-consuming. The room temperature curing type step repair material can be easily cleaned, and is highly evaluated for its ease of handling.

 

High durability

It is no exaggeration to say that durability after repair is the most important point in repairing damaged roads. The room temperature curing type step repair material is characterized by its ease of handling without compromising durability.

KF Road Maintenance N, an excellent room temperature curing type step repair material

Easy to construct

KF Road Maintenance N is characterized by its ease of installation. The major features include the following

• Powders and resins are easily mixed (stirring can be completed in about 30 seconds)
• Low viscosity for easy spreading
• Does not stick to the iron easily.
• Low odor
• Easy to wash with water
• Less garbage generated

 

High degree of freedom of construction

KF Road Maintenance N is a highly versatile repair material that can be easily utilized in any location or situation, offering a high degree of freedom in construction.

• Can be applied on wet road surfaces, etc.
• A thickness of about 10 cm can be added at a time, making it possible to quickly repair even the deepest repair areas.
• Small particle size and smooth surface and slope can be formed

 

Fast curing

One of the major advantages of KF Road Maintenance N is its rapid curing. From this point of view, it is a very suitable repair material for road repair (step repair).

• Fastest curing speed in the industry, can open the road in 40 minutes
• The temperature range for installation is 5 to 40°C, allowing for implementation regardless of climate, and the curing time is constant.

 

Various property values are also good

KF Road Maintenance N is a reliable repair material in terms of durability, with superior performance compared to other companies in the various physical properties listed below.

• High adhesion strength
• High compressive strength
• High bending strength
• Slip resistance values are also high compared to typical roadways

summary

When repairing roads and steps, high repair effectiveness is required. As described in this paper, room temperature curing type step repair materials have properties suitable for road repair, and “KF Road Mente N” is one such material that is very effective and convenient. We recommend KF Road Mente N to anyone who is considering repair.

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