Taiyo Kogyo Column
What are the performance requirements and issues for pavement repair materials? How to Select the Best Pavement Repair Material
Concrete and asphalt are now useful everywhere in our lives because of their properties. We are surrounded by concrete and asphalt in many aspects of our daily lives, such as roads, houses, bridges, and parking lots. However, concrete and asphalt are not all-powerful, and they too will age and wear out with the passage of time, the effects of climate, and the passage of people and vehicles. These areas must be repaired using repair materials. There are several types of repair materials and repair methods, each with its own characteristics and challenges. In this report, we will introduce the types of repair materials and methods, their challenges, and what kind of repair material is the best repair material.
Types of concrete and asphalt repair methods
First, let us introduce you to the types of repair methods that can be used to make repairs. The following methods are listed below.
Request for repair work
This method involves hiring a professional repair contractor to perform concrete and asphalt repair work.
Purchase asphalt repair materials at home improvement centers and mail order sites
Even if you are not a professional contractor, you can purchase asphalt repair materials at home centers or through mail order sites. Low prices across the board.
Purchase repair materials from a specialized supplier.
In some cases, repair materials are sold by specialized repair businesses. The prices are higher than those at home improvement stores, but the quality of the repair materials is also higher.
Issues in concrete and asphalt repair methods
Each of the repair methods described above has its own challenges. Please familiarize yourself with the following information and use it as a reference when considering repairs.
Challenges in requesting asphalt repair work
There is the hassle of hiring a repair contractor and certain costs involved. In addition, depending on the nature of the work, heavy equipment may need to be arranged, which can be a major undertaking.
Issues with asphalt repair materials available at home centers and mail order sites
Most repair materials available at home improvement centers have low durability and are intended for temporary use (emergency treatment), so they tend to cave in or break after a while due to vehicle traffic, etc. In addition, the granularity is coarse (2 to 4 cm), so it is not suitable for forming smooth slopes. In addition, the granularity is coarse (2 to 4 cm), which causes a difference in the level of the granularity, making them unsuitable for smooth slopes and the like.
Issues with repair materials available from repair companies
Compared to repair materials available at home centers, many of them are 3 to 4 times more expensive, presenting a cost challenge. For this reason, the durability is of a quality that can be handled as a main repair rather than a temporary level. These repair materials can be expected to produce a beautiful finish, but the work requires familiarity. In addition, the equipment to be handled needs to be washed with thinner after use, which is time-consuming in terms of management.
Issues with repair materials and repair methods in general
Repair materials in general often have durability issues, and such repair materials are prone to damage that can spread when a portion of the pavement is damaged, such as potholes (holes that occur in a portion of the asphalt pavement surface mainly due to repeated vehicle traffic). In addition, in either case, if the repair is done by an inexperienced person, the treatment tends to be at the level of temporary restoration, which can easily lead to damage if left untreated. In such cases, it is necessary to have the repairer pave with damper. In addition, since many repair materials generate odors, depending on the repaired area, consideration should be given to odors, including consideration for the surrounding area.
Performance Requirements for Asphalt Repair Materials
As mentioned above, repair materials present a variety of challenges. For a more effective and ideal repair, repair materials must be able to
Fast curing
The faster the repair material cures, the faster and more efficient the repair can be completed. Repaired areas can be opened more quickly, requiring less time for entry and control. It also reduces the risk of unintended deformation caused by flowing repair material.
Little variation in curing speed
Depending on the unevenness of the repaired area, the thickness of the repair material may vary in some areas. In such cases, if there is little variation in the speed of curing, it will be easier to determine when the repair is complete and to maintain a certain level of finish.
Low odor
If the repair area is in a high-traffic area, anything with a strong odor should be avoided as much as possible. Therefore, repair materials with low odor should be selected.
Easy handling and plastering
To enhance repair effectiveness, repair materials that are easy to work with, easy to handle, and of consistent quality even when applied by first-timers are required.
Clean finish and few steps
With any repair material, there will always be a difference in the grain size (granularity) of the repair material. If the grain size is too coarse, the result will be a bumpy finish, and depending on the location, this can cause damage. For a cleaner and smoother finish, a repair material with a finer grain size is required.
Easy washing after installation
Repair installation equipment must be washed after use. In this case, a repair material that does not require thinner or other chemicals and is easy to clean is more efficient and saves time and effort.
High durability
Durability is a very important performance requirement for repair materials. Since the repair work is being performed, a durable repair material that can maintain its condition for a long time afterward is ideal.
Superior step correction material "KF Road Maintenance N
We hope you now understand what criteria you should use to select a repair material. Here, we would like to introduce a repair material called “KF Road Maintenance N” as an ideal asphalt repair material. Among the many repair materials available, this is a very good quality repair material with the “required performance” mentioned above, and we can recommend this product even to those who have no experience in repairing. Below are some of their typical features.
Easy to construct
KF Road Maintenance N is characterized by ease of installation with the following advantages
- 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 washing after installation
- Easy to wash with water
- Less garbage generated
High degree of freedom of construction
KF Road Maintenance N is a highly versatile repair material because it offers a high degree of freedom in application and can be easily utilized in any location or situation.
- 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 (zero abrasion is also possible)
Fast curing
Another advantage of KF Road Maintenance N is the fast curing of the repair material, allowing for efficient installation work.
- The industry’s shortest level of fast curing, with curing completed within 40 minutes regardless of summer or winter (traffic can also be completed in 60 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 has a higher standard of various physical properties and higher durability than other companies’ products.
- High adhesion strength
- High compressive strength
- High bending strength
- Slip resistance values are also high compared to typical roadways
材料名 | KFロードメンテ | 従来品A | 従来品B | 従来品C |
---|---|---|---|---|
Material | Acrylic Resin | MMA Resin | Acrylic Resin | Asphalt emulsion |
Adhesion strength (N/mm2) | 1.55 | 2.8 | 1.05 | 0.84 |
Compressive strength (N/mm2) | 22.7 | 17.1 | 2.37 | No data available |
Bending strength (N/mm2) | 7.95 | 29.3 | 3.24 | No data available |
Sliding resistance (BPN) | 75 | 78/td> | 65/td> | No data |
summary
In this paper, we have explained the challenges facing concrete and asphalt repair materials and repair methods, and what kind of performance is required of repair materials. KF Road Maintenance N is an ideal repair material that can be used effectively on any repaired area. If you are considering which repair material to use, please feel free to contact us at the following link.
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